loose RPM gain MPG

Asked by cdnanorthwind Jun 30, 2016 at 05:27 PM about the 1998 Dodge RAM 2500 Laramie SLT Club Cab 4WD

Question type: Car Customization

my 98 ram quadcab  runs 2200 rpm @ 62 mph by increasing tire and rim size i
hope to drop my rpm. what is the biggest road tire (circumference) that can be
possibly install on this truck

3 Answers
157,395

Bob answered 7 years ago

Put too big of tire and wheel on will actually make the fuel mileage go down. Also when changing tire sizes you have to consider odometer and speedometer error when figuring fuel mileage.

Mark helpful

cdnanorthwind answered 7 years ago

why does a bigger road tire lower my MPG. the 5.9 has enough torque at lower RPM. my thought is that instead of messing with gear ratio i can accomplish the same with larger tire circumference.. the truck has 245/75 r16 mounted now with lots of fender clearance. the speedometer difference can be remedied very easily.

Mark helpful
157,395

Bob answered 7 years ago

Bigger tires have increased rolling resistance, they are less aerodynamic and they weigh considerably more. They will take slightly more power to get rolling and keep rolling.

Mark helpful

Your Answer:

Related Questions

  • loose RPM gain MPG 3 Answers

    my 98 ram quadcab runs 2200 rpm @ 62 mph by increasing tire and rim size i hope to drop my rpm. what is the biggest road tire (circumference) that can be possibly install on this truck

    1998 Dodge RAM 2500 Laramie SLT Club Cab 4WD

    -

    Car Customization

  • Straightpipe-Power Gain??? 11 Answers

    I have been debating whether to straight pipe my 6.7, take out just the muffler not the DPF. The main reason i want to do thid is for power gain and fuel economy towing. I was wondering if anyone has ...

    Dodge RAM 2500

    -

    Car Customization

  • poor mpg 13 Answers

    i got a 2005 ram 2500 with a 5.7 hemi ,is there any way to increase fuel milage only gettinf around 11mpg thanks

    2005 Dodge RAM 2500

    -

    Car Customization

  • What is the MPG difference between 18" and 20" tires on 2500 diesels 1 Answer

    2014 Ram 2500 diesel megacab

    2010 Dodge RAM 2500

    -

    Car Customization

  • what is DIESEL MPG ? on 4wd 33 Answers

    Saw the listed 15 models of 1995 Dodge Ram 2500 and the MPG- BUT did not see Diesel models MPG. Want to know for the 1995 long bed extended cab, four-wheel drive automatic 5.9L Cummins Turbo Diesel...

    1995 Dodge RAM 2500

    -

    General

RAM 2500

Looking for a Used RAM 2500 in your area?

CarGurus has 1,002 nationwide RAM 2500 listings starting at $6,400.

ZIP:

Own this car?

Share your experience with others.

1998 Dodge RAM 2500

Write a car review

Review another car

Shortcuts

Search Dodge RAM 2500 Questions

CarGurus Experts

  • #1
    Dan Connell
    Reputation
    5,600
  • #2
    Ram2500Diesel
    Reputation
    1,600
  • #3
    Tony Williams
    Reputation
    1,540
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 2500HD
1,078 Great Deals out of 30,426 listings starting at $3,800
Used Ford F-250 Super Duty
1,434 Great Deals out of 41,335 listings starting at $3,995
Used Dodge RAM 3500
35 Great Deals out of 482 listings starting at $7,999
Used Dodge RAM 1500
87 Great Deals out of 1,534 listings starting at $1,800
Used Ford F-150
6,021 Great Deals out of 127,344 listings starting at $1,995
Used Ford F-250
206 listings starting at $7,495
Used Chevrolet Silverado 1500
4,097 Great Deals out of 130,276 listings starting at $2,995
Used Ford F-350 Super Duty
957 Great Deals out of 22,034 listings starting at $3,995
Used GMC Sierra 1500
1,877 Great Deals out of 64,496 listings starting at $3,400
Used Toyota Tacoma
1,865 Great Deals out of 30,367 listings starting at $3,500

Used Cars for Sale

2010 Dodge RAM 2500 For Sale
66 listings starting at $9,000
2009 Dodge RAM 2500 For Sale
6 Great Deals out of 68 listings starting at $7,500
2008 Dodge RAM 2500 For Sale
7 Great Deals out of 99 listings starting at $6,995
2007 Dodge RAM 2500 For Sale
15 Great Deals out of 148 listings starting at $7,995
2006 Dodge RAM 2500 For Sale
12 Great Deals out of 178 listings starting at $6,400

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.