Have a Dodge Ram 1500 w/ 5.7 L Hemi. Mpg is 11.4. How can I make it more fuel efficient?

Asked by glentwilligear Jun 22, 2012 at 01:25 AM about the 2003 Dodge RAM 1500 SLT Quad Cab LB 4WD

Question type: Car Customization

Everything is factory. What can I do to up mpg?

81 Answers

1,245

saw on Gearz show the other day if you put bigger exhaust and cold air intake gives you little bit better mpg. but easiest way is to go easy on the gas from a stop and getting onto highway. use less braking. but if you got a diesel truck you would get better mpg and depending where you live you can convert the diesel to bio fuel and get even more mpg and more power

30 people found this helpful.
16,925

theres really not much you can do besides trading it in for a different truck. driving habits might help but all these claims for products to boost mpg are gimics. dont fall for them.

23 people found this helpful.
8,425

The biggest thing you can do to help is changing your driving habits.... coast to red lights, accelerate slower....keep the RPM down. Making sure it's well tuned up can also help slightly, properly inflated tires as was mentioned.. Switching your fluids to synthetic may also help, although whether or not it's feasible for you will depend on your situation.

33 people found this helpful.
9,975

Several years ago I took a driving class given by a company I was with. Since we drove mid size trucks and made lots of stops it was important to generate best mileage w/o costing us time. Basic principles are: 1) Accelerate smoothly and briskly from a stop. Not a jack rabbit start by any means but creeping up to speed actually hurts mileage and cost you and everyone behind you time. 2) Anticipate stops. Lights that have been green for a while (stale green) with traffic backed up on the intersecting road are soon to go red. Coast well in advance. As you get to know your everyday rounting, you can easily anticipate green to yellow, etc. By the same token, when the light ahead is red, coast down to anticipate the green so you don't have to actually stop. A running vehicle when stopped is getting 0 miles per gallon. BTW, use the right hand lane for this if you're on a multi lane road. DO NOT hold up traffic in the left (passing) lanes. 3) Route yourself to a minimum of left turns. Sitting waiting for oncoming traffic to turn left gets you; you guessed it... 0 MPG. 4) Use your cruise control whenever possible. Keeping a steady speed maximizes time and mileage. If you can't due to fluctuations in traffic, lay back and attempt to keep a steady speed as traffic speeds and slows in front of you. 5) Set the air pressure in your tires to the max pressure on the sidewall. Less rolling resistance results in less fuel used. 6) Ignore the owners manual. New plugs every 25K-50K miles will use less fuel. Change the air filter every 10K or get a K&N washable filter and clean and re-oil every 20K-25K Miles. These tips will get you some fuel savings if you're not already practicing. Try it for a couple of tanks and let us know how you do!

89 people found this helpful.
1,350

increasing horsepower will make you truck easier to move itself using less energy (fuel). my dodge 1500 got 12 mpg's i put a chip with a cold air intake and headers on it, now it gets 23

135 people found this helpful.
890

What kind of chip, headers, and intake did you use. I have a dodge 1500 express.

89 people found this helpful.
1,640

Don't sell your Dodgeram, I own a 2005 dodgeram 4x4 hemi. With some work and know how, you can improve you gas mileage. I have 116,000 miles one my truck. I do my own work and have got my truck at 22-23 mpg using the bad gas we get today. I enjoy what I've done. With two more changes, I will be at or near 28mpg. Ground Shaker Racing Roxboro, NC

164 people found this helpful.
310

I have the same question, and I know a guy who knows so much about any possible dodge vehicle he might as well created them himself! He told me to put a cold air intake, performance chip, and CAT-back exhaust (straight pipe, flow master muffler, etc.) So that is all in my plans for my truck. He said that is about all you can do and the total cost would be around $500. However if you do your own work can bring cost down and that is the route I am personally choosing. If you do not have the know-how then just price around, but look at quality of the places work too. Dont pay the cheapest work for something you will have to fix in 2 months yourself. I learned the hard way!

31 people found this helpful.
1,020

If you can get Ram 1500 with a 5.7 Hemit from 12 mpg to 28mpg, you are worth millions, if not billions. Also, the gas companies might try to eliminate you :) But I'm not thinking you can get 22mpg, let alone 28. So, no worries.

102 people found this helpful.
1,075

i have a molar(borla) catback mopar(aem) intake and diablo trinity and get 14mpg up from 12.5mpg

18 people found this helpful.
50

Does anybody have 2014 dodge ram with headers

5 people found this helpful.
210

I have a stock '05 ram hemi. I get approximately 18.5 - 21 mpg. I try to keep it around 65mph and I get this result the majority of the time. If the road terrain is mountain and hills your mpg will decrease dramatically. Mine fell to around 13-15mpg.

21 people found this helpful.
150

I've heard that if you remove the posie limited slip rear end there"s a big improvement about 600.00 and 5 hours Labour.

15 people found this helpful.
250

Theres not much u can do in the city just pay attention to driving habits however on the highway I set my cruise control to around 65 amd get 23-24 mpg on my 2014 Ram 1500 5.7. Without cruise control I was around 20-21 mpg.

25 people found this helpful.
150

I have a 05 Dodge Ram 1500 short bed 2 wheel drive with a 5.7 HEMI,also,I've put a set of Pacemaker Headers shorties,K&N cold air kit and a Mopar performance chip.Motors tuned to 400hp.runs well and my fule milage jumpet to 15 to 18 city to 20 to 22 open road set on cruz.I'm happy with the performance,course if I get to quick on the pedal the trk will lurch very quickly,and the fuel milage goes down.

15 people found this helpful.
240

Crank sensor took a crap and replaced on my 05 Dodge Ram 1500 ThunderRoad edition. MPG dropped 2-3 MPG, dont understand why. Can anyone put any logics to this?

24 people found this helpful.
90

My son has a 99' RAM 1500 4x4 5.9L and the computer says avg ~25 mpg on the highway, but in reality it is more like 18 mpg if you do the math. Mine is a 01' RAM 2500 4x4 5.9L (no computer) and gets ~15 mpg highway. That matches the sticker specs. It has a "locking differential" that I considering changing to a "open differential" to save MPG"s. Got that idea from this forum. Thanks.

9 people found this helpful.
100

i would say watch how hard you do it. if you are going to add a chip, headers, and intake just for fuel mileage are you really saving much money after putting into the modifications? you can buy a lot of gas for what you will put into it. if you are doing it for performance then that would be your call.

10 people found this helpful.
40

you can also replace your cam shaft.this will also increase horsepower

4 people found this helpful.
140

I was told that you need to change to ox sensors every 70000 miles. I did this and increased about 1.5 Meg in my 1999 dodge ram 5.9 liter. Have flow master and new heads and 239000 miles. Gets 15 average now. My computer always says around 18.5 though. I have been considering the kn and cold air intake. Drive 60 on the highway and conservative all the time.

14 people found this helpful.
340

weird i have a 2011 dodge 1500 5.7 and my comp is saying i average 12.5 and all my miles are cruise control highway miles! what is wrong with my truck!!

34 people found this helpful.
95

Hi Joseph! It could be many factors. Depending on the mileage on the vehicule or if you're not using it often, a calliper could be sticking on, which would make the mpgs go down a lot.

9 people found this helpful.
345

Is anyone using Lucas products to help boost this as well? I see that a lot of people are saying that they are doing the modifications, but no one is saying what they are doing to treat their fuel. You should take into account the type of fuel you use and whether or not you're cleaning your system as well. I've got a 08' Dodge Ram 1500 4.7 V8 Flex Fuel and I have bought the K & N filter and placed an order for my exhaust to be done. I treat my tank which boosts my mpg by a few already. Currently right now I am averaging 15-16.5 mpg in town and 17.6 to 20 on the highway long as it stays at a steady speed. I use my cruise control and I have good driving habits. Like the others said, it is the combination of several things that help the over all.

15 people found this helpful.
220

I have a 2012 Ram 1500 RC/SB 5.7L Hemi/6-Spd AT/3.92 Gear Limited-slip Rear Axle. I use premium synthetic oil (5W20), premium oil filter (Royal Purple or K&N Gold) and use ZMax oil & fuel products. Modifications include a Volant Throttle body spacer, a K&N filter and a "true dual exhaust system". I have 11K miles as of April 2015. My actual real-world average MPG is consisently 14-15 city and 21-22.4 highway (68-70mph cruise control on, AC on, windows up). My all time best ever highway mpg for a road trip is 24.2mpg highway. I run Shell mid-grade (89 Octane) at a minimum but most of the time I run a 50/50 mix of Shell 89 & 91 Octane. I have not done the Tune (Computer Program) yet or the Cold Air Intake, shorty headers, upgrade to a mild camshaft or anything else yet. Naturally, I'm driving intentionally to "hyper-mile" but every now and then I do get on it hard and street race it. I'm considering replacing the 3.92 gear with the OEM 4.10 gear and upgrading the Transmission Torque Convertor (probably 200-300 increase in stahl speed) to go with the (someday) Edelbrock E-Force Supercharger, to go with the "Stroker" engine kit (5.7L/345ci to 6.4/392ciL or 6.7L/410ci...haven't decided yet). Of course, that will be the end of the great MPG my rated 390HP/407TQ truck is getting now. All in all, pretty damn good considering the performance, vehicle weight, and lack of the new 8-speed transmission (remember, I have a 6-speed...which actually is a modified 5-speed...2nd gear is "split" OEM and I'm running a 3.92 gear LS rear axle). Kudos to the RAM & Hemi powerplants engineering Team. Tom, Manhattan Beach Ca.

12 people found this helpful.
320

I own a 2005 Dodge Ram 1500 5.7 hemi . I don't agree with anyone claiming over 20 mpg that's bs . I got 11 mpg stock .used the hyper tech max energy Econ power programmer . Got 1 mpg better so now 12 mpg . Changed exhaust summit 3 inch cat back now 14 mpg . Changed to k&n air intake dropped to 8.9 mpg wtf . Removed k& n back to proper mpg 14.5 mpg .also switched to Mobil 1 synthetic engine oil . New wires from dealer and changed all 16 spark plugs stock champion . Don't use anything but the stock plugs .i know the truck does not have the mds multiple displacement system but I love it . Black on black and 85 k .payed 13.000 last June .leave the intake alone.throws off all the sensors .ive been a mechanic for 22 years .by the way ford is junk . Only buying dodge from here on out. Ps the 2012 ram my neighbor has mds gets 16.3 mpg on most days . Not worth the expense buying a new truck . My Ford F-350 diesel and my f150 rotted out body and frame .never again.buy dodge.

20 people found this helpful.
120

well I have a 2015 Dodge with a 5.7 Hemi 4 wheel drive when I first bought the truck brand new it was getting 15 miles to the gallon in town 21 on the highway all the sudden it drop down to 11.5 in town and 16.5 on the highway I was putting regular unleaded in it then I read the owners manual and it recommends midgrade fuel so I change to that now it is back getting 15 miles to the gallon in town and 21 on the highway

12 people found this helpful.
50

I have a 2010 4x4 hemi, all I've changed is the air intake(eBay 80.00) and I'm averaging 15.8 city. Been debating on a programmer but no one has swung my decision either way.

5 people found this helpful.
320

I have the non multiple displacement system . The mds started 2006 I have a 2005 . I've done the hyper Tech power programmer 3 inch cat back exhaust from Summit racing got it from 11 MPG to 14 MPG tried the k&n air filter and a drop back down to 11 put the stock one back and back up to 14 I guess it's just a pig

3 people found this helpful.
175

I've seen a lot of great post on here. Please don't for get to clean your throttle body and MAF. Make sure you take it off to clean and disconnect the neg on your battery, because if not you will get a nice rumble from it once you start it. I have a 09 5.7L with 76K on it and the throttle response is like new and mpg's went from 11 or 14 to 16 in the city and around 20 to 22 hwy. I also have a K&N air filter, I love it put it in a cars and trucks. Lucas is a great thing used it in everything I've driven for the past 10 years it helps out a lot and driving habits

11 people found this helpful.
150

I have a 2014 Ram 1500 Big Horn 5.7 Liter Hemi and I put a K&N air filter on it and put a performance chip in it and my gas mileage went from 15mpg in the city and 21 mpg highway to 17 in the city and 24-25 highway, I could tell a difference in the horsepower also. My next move is the cold air intake and a tuner to see how much more horsepower and mpg I can add.

15 people found this helpful.
175

O yeah sounds good. I forgot that I have a tri fold on the bed that helps too. Took a trip from MD to VA on rt 17 was drafting behind a 3500 with a camper going 65 mph I was clocking 23-25 mpgs.

6 people found this helpful.
100

I'm not an advocate of fuel additives,but I've been using one lately and it has actually been helping.I originally purchased Star tron enzyme fuel treatment for my 2 stroke mantis tiller.Every year I have to adjust the carb to get it to run.After the treated fuel got to the mantis carb it started running.I decided to try it in my 08 Ram Big Horn.Mileage has been getting worse over the years.New spark plugs,air filter and other routine maintenance didn't make a difference.Mileage was 13-15mpg around town and 16-16.6mpg hwy.With the star tron I'm getting 15-17mpg around town and18.3-18.4mpg hwy.I recently added some Granatelli hot steet COP's and I'm getting 17.5 around town.I haven't had a chance to check hwy mileage yet with the new COP's.I have long tube headers and high flow cats sitting in my garage waiting for install.I'm waiting to get a hwy trip in to see if the COP's make a difference.

4 people found this helpful.
120

I have a 2007 dodge 1500 hemi 5.7L... How in the world do I determin the right modifications to make to improve my MPG? I see multiple comments saying different ways work and then others saying that K&n filter doesn't work... There's a performance chip... Cold air intake... Dual exhaust. My MPG is stuck at 10-11. Elite coach only recommended me to change muffler & exhaust plus the cold air intake. What can I do and what are the costs to get these modifications done? How in the world do I get 20- 24 mpg? To give an understanding of Econemy for cost wise, I live in PA.

12 people found this helpful.
100

John,I would first try the Star tron enzyme treatment.I got mine at Home Depot for $6.99.That will help.I have seen dyno tests on youtube of cold air intakes and they did nothing.I wouldn't waste my money on one.If you have the lifetime warranty,a performance chip will void the warranty.Try cleaning your IAT sensor and the throttle body.There's plenty of youtube videos that will guide you through that.High flow exhaust will definitely help.Mine is a single out.I bought a set of long tube OBX headers with high flow cats on Amazon for $815.I needed an additional $100 in parts.I'll be running my stock muffler and resonator for a little while.I don't want it too loud.I don't know if we can get 20mpg out of these older Hemi's,but I'm trying!I had an 88 Ford Ranger with the 2.9L.The best mileage I got was 19mpg.I installed JBA long tube headers and gibson high flow exhaust.I also installed a Jacobs electronic ignition.After those upgrades I was getting 26mpg.I'm not sure which mod made the biggest difference and that's why I'm adding stuff to the Hemi in stages.I have Granatelli hot street COP's installed now and I'll be putting the headers om later.

6 people found this helpful.
220

Updating/adding to what I posted a few weeks back. I have a 2012 Ram 2WD RC/SB 5.7L Hemi Express with 6-Speed AT and 3.92 Gear LS Rear Axle. I've added a true dual exhaust system from after the cats (eliminated factory Y-pipe) all the way (retained factory dual tailpipes & resonators); I'm running dual performance mufflers where the one large stock muffler was). I've added a Volant TB Spacer, a K&N drop in replacement filter (in the stock airbox), running 5w20 Royal Purple Synthetic Oil with a K&N Gold Oil Filter, a Moroso Oil/Air Separator (re: Oil Catch Can) and using a Superchips hand-held programmer. I use Z-Max additives. With the 91-octane tune, I'm averaging real world every day MPG of 14-16 city and 21.5-24.5 highway cruise. I only run Shell 91 Octane gasoline. I also use Lucas gasoline additive to help keep fuel injection system performing flawlessly. I have also run the Superchips "Fuel Economy tune" for 87 octane and did notice I picked up around another 1.5-2+ MPG, however it did take a lot of power out of it. I've also replaced the OEM 203 degree F. Thermostat with a Stant 190 degree F. unit and revised the cooling fans down 13 degrees. I would have run the 180 degree Tstat. but felt the 180 was a bit cooler than what I wanted. The 190 Tstat works great...lower oil temperature, etc. Future mods will include JBA ceramic coated shorty headers and a Cold Air/Ram Air Intake (deciding now between the Volant Unit and the S&B Unit). For best performance, efficiency, power and fuel economy...run premium synthetic lubricants in everything (engine, trans, rear axle). The newer Rams with the 5.7L Hemi have an available 8-Speed AT versus the 5 and 6-speed AT of the older Rams. The gearing on the 8-speed looks real good and should be worth at least 2, maybe 3 MPG over the 6-Speed (plus can run a 3.55 or 3.23 rear gear as opposed to 3.92 or 4.10 rear gear). More later as I do more to my "Muscle Truck".

10 people found this helpful.
50

I have a 2012 Dodge w/ 5.7 been tossing the idea of a chip set but seems no one can honestly tell me what chip will work the best. If someone can be honest and let me know please. As for the air filter thing yes it does mess with the sensors but if you take your truck to a dodge dealer they can adjust for it and improve mpg.

5 people found this helpful.
70

I have a 2005 5.7 Hemi. I have it all stock except a mbrp cat back dual exhaust and that it for now, and I am getting 13.3 mpg high way. I would love it to be at least 15. I see people posting about new headers, cold air intakes, and performance chips and stuff, but what brands are best.

7 people found this helpful.
320

Jake I have a 2005 Dodge ram 1500 with the 5.7 L hemi did a spark plug change 16 total plugs use the stock champion plugs change the wires big wiring harness weird design put a 3 inch summit racing cat back exhaust try to call their intake drop my feel mileage worse than when I started at 11.1 MPG after cat back exhaust and I stock your folder and a hypertext Econ computer programmer I'm now getting 14.9 I tried just a slip in K and N air filter and my mileage drop down to 12 miles per gallon put the stock paper one back and went back up to 14.9 I do not believe in air intakes are caiman air filters from here on out especially with this vehicle I suggest the hyper Tech Econ power programmer expensive but worth it and your cat back exhaust don't touch your intake good luck with your project .

3 people found this helpful.
40

2012 ran 1500 5.7 hemi - stock 20 inch tires 17-18 mpg around town 22-24 hwy. I just drive the speed limit If I hotrod around MPG drops to 12-14 mpg. Got 14-15 mpg pulling a trailor 3000 miles

4 people found this helpful.
35

I have a 2005 Dodge Ram 5.7 hemi sport (red) and my dad has the exact same truck but blue.. I live in Kansas. And my dad lives in Louisiana. He has a performance chip on his truck and I don't. His chip is turned up all the way to the max. And when we went to visit for this past Christmas I rode in my dads truck and he was on the interstate. And he was traveling 72 mph. And I hit the reset button on mpg computer. And he was getting 24mpg. The whole trip. Traveling 30 miles. When I drive my truck back home in Kansas. I drive 60-65 on interstate. And I watch my driving habits. And I can only get 13 average at the best. Now in Louisiana it's extremely flat and lower altitude then Kansas. Kansas is extremely hilly. Up, down, up down. That's why I don't get good gas mileage... I am a mechanic. And I have a little tip for some guys out there who want better gas mileage. And a better sounding truck exhaust. Bigger is better when it comes to Exhaust. And true dual exhaust is much better than cat back exhaust. If you are on a budget. Pull your pipes off and drill out the homecomb in the cats.. The less restriction the exhaust has when leaving through exhaust. The better the truck can breathe. The same aspect as when you are running a mile. The better your breathing. The longer you can go.

3 people found this helpful.
20

Leaving for a 2400 mile trip. Will return with some solid highway data. 2011 1500 5.7. K&n hi flow filter and MBRP CAT-BACK exhaust.

1 people found this helpful.
90

Noone that I've noticed mentioned if what 'gear option' they drive in. I don't know the actual word for it. I have, in my 08 ram 1500 5.7 hemi, 3 options after putting it into drive: overdrive, overdrive OFF, & tow/haul. I don't us the od OFF. If I drive in strait overdrive I average 11-11.5 mpg, if I drive in tow/haul I average around 14.5. I'm in the Oklahoma countryside with poor roads & poor driving habits when speaking in regards to preserving mpg. ie: always running late so I drive faster, gas it from stop signs, etc. So with only one little push of a button on the end of my gear shifter, and doing nothing else, I add that extra 3 mpg.

7 people found this helpful.
50

I have a 2013 Ram Bighorn. I have a 5.7 with a 6 speed trans. I am getting good around 11.5 city and 13-15 hwy. I was told that the 6 speed is killing me. Another guy I know has the basic same truck only he has the 8 speed. He gets about 17 city and 22-24 hwy. We have literally driven side by side on a 4 lane doing same speed and he is getting 8 mpg better than me. I'm wondering if it is worth the money to change transmissions. Any idea what it would cost to change to a 8 speed tranny?

5 people found this helpful.
40

I own a 2015 Ram 1500 with a 5.7 Hemi and 8 speed... suffered a 7.2 MPH City and a 10.2 MPH Hwy at first. I have since had it lifted, O/S tires, O/S wheels, Diamondback Tonneau cover, upgraded Springs and air suspension, K&N Cold Air, Chip and a few other items have increased it up to 11.5 MPH City and 19.4 MPH Hwy. I believe that without the lift and O/S wheels and tires the increase would have a little more significant, but I've gotta have my 'Bad Boy' styling to it.

4 people found this helpful.
157,325

My 2014 Ram quad cab 4x4 5.7 6 speed gets a solid 18 on the highway. An 8 speed transmission may get 1 or 2 mpg better, but it would be very difficult to get an 8 speed working in a 6 speed truck due to all the computers that would have to be reprogrammed.

20

Great reading. i have 04' Ram 1500 quad 4x4..5.7 hemi live in nw Pa and run to wv high up in mountains loaded and or pulling trailor all the time....Sounds to me to keep up on all wear items and drive smart is best policy... all is still stock. Was told synthetic will help.Trying to keep cost down to keep marriage....truck does everything I need. Sounds like I should be happy with it... Thanks for the input. Tim

2 people found this helpful.
30

I'm getting ready to sell my truck. Was wondering how much i should sell it for? It's a 2004. Dodge ram 1500 has the hemi and air intake. Good gas mileage. But the rear end is going out. And the head lights are wired back wards. Don't know why? Any suggestions. On how much i should sell it for? Reply at sbrettrish@yahoo.com thank u

3 people found this helpful.
20

i love my 2003 1500,awsome truck great mileage great sound,dual exhaust,cold air intake,supercharger, and she runs great better than my 2014 2500 ill never get rid of......

2 people found this helpful.
170

use synthetic oil,transmission fluid and diff gear lube and drive with a light throttle.

3 people found this helpful.
30

Ron. I have a 203 dodge 1500 hemi 3inch exhaust put the tri fire plugs new cold air filter. Keep 20inch tires at 35 psi. Get 16 city. 20/23 highway. On cruise. Its 4x4. And got plenty of power and great top end speed. Gas is at 225 in jersey. And 125.000. The plugs made all the difference and high performance wires. I'm all ways 1st in line!! Just enjoy ur truck. big motors. Average mileage. Drive on.

3 people found this helpful.
50

few things i would recommend and i did this with my 99 ram 1500 club cab with 5. v8 is cold air intake with heat shield, exhaust system, clean the throttle body, and injector cleaner that you out into the tank when you fill it up a few times in a row.

5 people found this helpful.

2012 cc 4x4, was getting 14/19, top end rebuilt by dodge at 79k. Now I get 11.5 period highway and city, they tell me it's normal.

10

I agree with flymanyuma. I had known that Ram recommends mid to high grade gas. I drive 2015 1500 bighorn over 56 miles a day one way to work and get on average 19-22 mpg on highway and about 18 in city. I do find that when I used my heater i use more than if i let the ac run. I bought this new and have 60k on it already.. took it in for a bumper to bumper check before my warranty runs out and they said it looks brand new still and runs amazing. Keeping regular oil changes and check ups help as well. you may even look to rotate tires every 5k as they wear it does effect mpg.

1 people found this helpful.
40

So I have a 05 Ram 1500 with a shell on the back I get 11/15 MPG. What is the best tip and trick to up gas mileage? I don't want to lose the shell, but so far I see that cold air intake, quality gas, and/or an exhaust system. Which of these should I pick?

4 people found this helpful.
320

Mark Tried the exhaust system cat back from Summit racing lower gas mileage two mpg tried a intake filter from k&n lower gas mileage The best thing I was able to do was go on eBay and order the Hypertech Econ that gave me almost 16 mpg

3 people found this helpful.
320

So in the end what I ended up doing was getting rid of the gas hog I bought a 2014 Dodge ram blackout addition crew cab with the 5.7 L variable valve timing thing and the multiple displacement system MDS I'm now getting 20 to 23 mpg . You can't floor everywhere otherwise it drops down to about 13 mpg

3 people found this helpful.
30

I have a 2007 Ram 1500 MDS Hemi (factory stock). Ive tried the "easy" things like quality air filters, driving easy, synthetic oil, 89 octane gas, etc. NO major alterations. I get an average of 15 MPG combined highway and city. Thats all this ol gal will give me on mileage with what I've done. Its been paid off for years and still in good shape (with lifetime Dodge warranty) so Ill be keeping it for a few more years. If i wanted 20+ MPG, Id get a new one (and so should you). Ski in TX

3 people found this helpful.
10

I have a 2011 1500. I would get anywhere from 17 - 20. I recently installed a rollup tonneau cover and it increased my mpg to 17- 23. Also the use of cruise control set at 65 got me an to 19 - 26.

1 people found this helpful.
20

Man I got it the worst I'm only getting 9.9 that's with coasting anticipating cruise control and everything

2 people found this helpful.
20

i have a 2013 ram 1500 express 5.7 hemi. in town i get 16.1 to 16.6 mpg. on the hwy i get 20,7 to 21.3 mpg. only thing done to the truck was muffler delete to straight pipe. sounds wonderful.

2 people found this helpful.
15

I have a 2017 crew cab Laramie 1500. With "VERY" minimum effort, I can get 19+ MPG combined. Nothing is done to the truck other than a trifold tonneau cover which at best will give you a 1-2 mpg increase on the highway. I haul about 250lb on daily basis, never more than 1500LB. I do not tow and have no need to so, (yet). I do use 89 unleaded, and I do take it easy on acceleration and deceleration while driving in the city.

1 people found this helpful.
20

What are y'all doing to your trucks? I have a non mds (2005) completely stock. I run mostly city with highway every other weekend, windows up, AC on high and maintain a 17.5 mpg. With the AC off I can get as high as 23 average mpg. No additives, mods, anything. I also pull a bass boat weekly....

2 people found this helpful.
20

Hey I have a question will a 04 cummins air filter tube and box fit into a 05 1500 hemi and mount right up?

2 people found this helpful.
30

I have a 2007 Dodge Ram 1500 Hemi V8. Bought brand new in 2007. Only thing we have had done to it is oil changes, new tires, all the fluids changed out, and the hose that goes around the sunroof got clogged up a couple of times and leaked inside. I fixed it myself. Easy. Other than that it's been super great truck. It has been through woods, hunting, hills, and trips. It is now 2018, and our Dodge has 96,492 miles on it. It gets 12 to 13 mpg in the City and 20 on the Hwy, Interstate. Still not that bad considering that gas is cheaper in past 3 years than it was during 2014 topping 3.69 a gal. in our part of FL. Now it's 2.39 per gal. for reg.

2 people found this helpful.
10

I have 2016 4×4 Crewcab, 5.7 hemi, I get 15.5 city, 19.6 to 21.4 hiway I have a 7×16 enclosed trailer I pull from time to time thing I love about my truck is this truck will pull like a team of wild Horses ,nothing slows it down, my trailer was loaded very Heavy I when from dayton Ohio to Sebring Florida down in Kentucky i pulled The Jellico mountain with the cruise control on 70 never slowed the truck down.

1 people found this helpful.
10

I have a 2016 RAM 1500 crew cab with short bed, 4x4, hemi. When I bought it i got 14-16 city and 21-24 highway. I have added, a vararam intake, 90mm throttle body, jba headers, borla exhaust and predator 2 tuner. I have pretty good driving habits and live in mostly flat land but some small hills. With the tuner on 93 diablosport tune and ethonal free fuel I can get 20 city and over 30 highway. I have 17 inch rims and street tires not heavy mudder or off-road tires which rob fuel economy. I get worse mileage with MDS turned on which seems odd. Big and heavy rims/tires can rob mileage especially highway. Of course proper maintenance,

1 people found this helpful.
157,325

Using the onboard computer to calculate fuel mileage is a fool's folly. The ONLY real way to fairly compare miles per gallon is to hand calculate each an every tankful and get an average. For example my dash mpg readout is optimistic by 1.5 mpg. I use www.fuelly.com to record and calculate my mileage. It is free and easy to use. Please do NOT talk to me about mileage when just using the onboard computer readout because the accuracy varies from vehicle to vehicle.

1 people found this helpful.

Hi I just brought a 2002 Dodge Ram 1500 with 5.9 gas 4x4 what all programmers or chips are you guys using and what type of cold air intakes are you guys using to increase your mpg Or what all different truck can i do or install thanks

157,325

Trying to increase mpg by adding cold air intakes, special filters, exhaust and tuners is a fool's folly. The best way to optimize fuel economy is to keep tires properly inflated, run synthetic lubricants in all differentials, transfer case, transmission and engine and drive with a light foot on the throttle. Those gizmos will only make your wallet lighter and make almost no difference in fuel economy.

2 people found this helpful.
60

I am only getting 8.1 mpg consistently on 89 octane. Runs rough at times but no codes. Any ideas?

6 people found this helpful.
20

I'm about to buy a 2003 dodge ram 1500 5.7L hemi v8 4x4 it performs great 4x4 shifts great. Their is rust around the rear panels, plate area, around door base on driver side. Is that typical. Its has194, 000 mi, super clean inside & out otherwise. What are some of the good & bad about this particular and age.

2 people found this helpful.

Boys...Boys...just drive your trucks... I love my 2008 5.7 I have over 210 km and I pay about $20/100km. I just do regular maintenance and replace wearing parts...K&N air intake filter, BFG tires, after market Flowmaster Duel Exhaust and I LOVE to drive! Gas prices and mileage are the least of my worries.. I just enjoy the drIve, whether it's on a highway road trip, the back roads kicking up dust, or in the bush trails slinging mud...12mpg... here I come!

10

I noticed on my 2013 ram 1500 5.7l hemi that there are certain speeds that it will shift up(from 2nd to 3rd, 3rd to 4th, 5th to 6th), and then almost lug out if you ease off the gas. in other words if your going a certain speed and the rpms are above three or 4 thousand, you might want to give it some gas till it shifts up, then let the gas off lightly till you get back to or around the speed you desire. theres certain speeds that you wont get good gas mileage at reguardless. I cant remember for sure because im not on the highway much and dont drive as much as i used to, but im thinking around 70 mph i would get worse fuel economy then at around 80mph. just drive with your stereo off and listen to your truck, an exhaust will help as long as its not a racing /single chamber one. remove the cadalitic converter if you dont care about breaking the law, just make sure you can put it back before a smog test. use bolts or clamps. the only problem with that is you might fall in love with the new sound and finally hear what your motor really sounds like and start wanting to hear it more and let other people hear it-thus getting worse miles per gallon than before you started trying

1 people found this helpful.
140

I have the same, and let me tell you.. everyone tends to give you generic, theoretical answers that are technically on the right track, but some things can boost has mileage a lot more than others and other things are not very cost efficient.. meaning you'll spend a lot for very little gain. Personally, I have done almost everything you could think of.. mostly because I like tinkering and firm believer in preventive maintenance. "If it's not broke, don't fix it.." is a terrible mindset to have. First off.. before any upgrading, you want your truck at its best. Here's a short list in order.. - Change your oil - Use a high performance oil filter, but change frequently. - Change spark plugs - Replace rear differential fluid (I don't know why, but I gained over 2 mpg just changing the fluid with 75w-140 Royal Purple.. no extra LS additive needed. - Air filter. I use a washable aFe synthetic dry flow filter. Not because it gives massive gains, but because you save money. Most people wait until their air filter is dirty to upgrade high performance.. of course you'll see a difference. You would also notice difference simply replacing with standard air filter at the point your current filter is dirty. - Cold air intake? No.. save your money. Unless you integrate catch cans to trap oil from air before circulating through throttle body, you will lose performance and gunk up your intake. Furthermore, gains will not be noticeable without upgrading muffler, throttle body, dualing exhaust, installing headers and reprogramming your ECU to adapt all the new components to their capacity. On top of that, your throttle position sensor will throw a huge fit.. causing your truck to stutter, stall and lose almost all acceleration UNTIL your ECU is reprogrammed to recognize the new, larger throttle body. When that's all said and done, you've spent a small fortune for small gains. A more cost effective way to gain mpg, hp and torque would be to change your gear ratio. Stock is geared towards a balance between slow speeds, high speeds, hp and mpg. If you rarely go over 60 or 70 and do mostly city driving.. change your gear ratio. Gut your differential and rebuild.. lose the crappy "floating c clips" - If you want to dump a lot of money, upgrade your plugs and plug wires with low resistance mds coils. - Smaller rims or tires put less load on the motor for accelerating. - Clean your intake.. valves.. throttle plate.. injectors. Upgrade your fuel rails and pump. Keep in mind.. sometimes "high performance" amounts to less filtration for higher flow rate with less resistance.

4 people found this helpful.
15

I was passing through and thought I would upload a pic. Easy on the gas, easy on the break. All stock 2013 Ram 1500 4x4 on 20" alloys with factory tires.

1 people found this helpful.
157,325

Michael, if your truck is like mine was the computer MPG readout is optimistic by 1.5 mpg. My 2014 has been traded on a 2018 F150 5.0 10 speed super crew 4x4. It is getting around 20 highway and I am very happy with it.

1 people found this helpful.
20

OMG! Learn the truck and drive it properly, seriously. I have a 2014 Ram 1500 4x4 that is bone stock; no air intake, no aftermarket exhaust, nothing changed since new, with dealer completing all scheduled service, and it has a lifetime fuel MPG average of 20.9. I drive city and highway equally, with regular hard launches from red lights, as I am into that sort of thing. However, I use the cruise control at every opportunity, and most importantly, I do NOT exceed 63 MPH on the highway, as at 63 I get 26.8 MPG, while at 70 MPH I only get 19.2. When I reduce my traffic light antics, my city milage increases to 30+, except for short periods when I am accelerating. I experimented with different oils; quick lubes "Bulk" oil K-I-L-L-E-D my fuel milage; even their synthetic could not match the dealers oil results. Go to the dealer and have them change ALL the fluids to what the factory recommends, IF you are using anything other; it will pay for itself. BTW, to my surprise, local dealers here are actually less expensive than the quick lube giants prices. How does one get to 11 MPG driving normally???

1 people found this helpful.

I have a 2003 ram 1500 with 265,000 miles and when I bought it it was averaging 13.5 mpg until last year when I decided to put a programmer on it I was steadily getting 13.5 everyday driving and 14.5-15 mpg on the interstate, once I took the programmer off and reset the tune to factory I realized it had a professional tune in it and I ruined it by buying a programmer tuner and installing it. I was able to go 105mph and it would smoke and ford or Chevy I ever pulled up next to just playing around. So if you want a ton of horsepower and good shifting along with good fuel economy and just an outright great smooth running hemi just go spend a few dollars on someone that has a great reputation and references and have the ecu programmed, you will be very impressed with it and you notice a great tune from the first time you turn the key. 265,000 and not a tick or a knock in the motor. I have towed a 10,000+ lbs tow behind camper from the valley in AZ up thousands of feet to flagstaff several times and across the country back and forth several times and this engine is quiet as ever with no unusual noises. Put a cold air intake and exhaust on it and program or just a program but that’s your best way to go. A lot of people don’t realize what a good tune will do for your motor. It will wake up a sleeping hemi in many ways

115

Many people don’t have the idea that they can also increase fuel mileage on their 5.7 Hemi. It may be able to raise mileage, but you may need to use more than one gallon, and it adds up to the high cost. So, people tend to search for some techniques to boost up the mileage. it is possible to increase the mileage with one gallon.you can boost the mileage up to 27 mileage per gallon on average, which was previously only 15 mpg. By Reducing Resistances Stopping Lifting the Truck By Using a Perfect Tires Changing Fuel Filter or Fuel Using Cruise Control Setting up an E-fan Never Letting Engine Be Idle Here are some more details regarding these techniques https://theautokits.com/how-to-increase-fuel-mileage-5-7-hemi/

2 people found this helpful.

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