what is the best way to get better gas mileage?


Asked by Aug 10, 2009 at 09:46 AM about the Pontiac Grand Prix

Question type: General

6 Answers


1. Tire Pressure - make sure your tires are inflated to the correct pressure. Under-inflated tires have greater rolling resistance because they deform against the road. It's like walking in sand versus walking on concrete. It's less efficient to maintain the same speed on a softer surface than on a hard surface. 2. Keep the engine running well - Make sure your oil is changed regularly. The general rule is 3000 miles or 3 months, but newer cars can last longer between oil changes. Check the oil on your dipstick, if it's dark instead of a golden brown, or feels gritty when you rub it between your fingers it's time for a change. I may also be a good idea to use a fuel additive like an octane booster or fuel injector cleaner, and make sure you have a clean air filter. 3. Drive efficiently - Accelerate and brake slow and steady. The faster you accelerate, the more fuel you use, and if you brake hard you'll need to accelerate that much more to get back up to speed. Use cruise control on the highway and stick to the speed limit. This reminds me of a Top Gear segment where a BMW 3 Series got better gas mileage than a Prius, simply because of driving style. The Prius had to use more gas in order to keep up with the larger engined BMW around the Top Gear track.

1 of 1 people found this helpful.

okay if your gonna leave the car stock, to be honest if you start driving the car like a grampa your going to get worse mileage, yes it is important that you drive steady, but if you excellerate to slow you will actually get a worse total mpg than you would have if u got up at a constant rate, remember that you will get better fuel mileage at a high constant speed. 45 and above usually gets around 25 to 28 mpg in my 2000 grand prix, dont be to light with the pedal but flooring it is out of the question when shooting for mileage, and coast as much as possible to stops, down hills, and through turns. if your gonna upgrade it the cheapest ways to increase mpg's are gonna be a cold air intake or just a clean are filter, and theres a new type of spark plug that will help your car burn fuel more effeiciently and can increase ur mileage by a few mpg's there called E3 diamond fire sparkplugs

1 of 1 people found this helpful.

ohh and andy, i own a toyota prius, and the reason it gets better mileage because of slower excelleration is because at those slower speeds it uses the electric engine. A comparison between a hybrid and a high horsepower bmw is useless when talking about better mileage in a pontiac grand prix. What allows the prius to get its mileage is coasting to charge its battery and accelerating slow to use its battery more, thats why in japan it gets 60 mpg and in missouri where i live it gets around 48. It functions better in low speed low acceleration areas. for instance tokyos top speed on a highway is somthing like 30 mph and ours is around 60 to 70, the prius only gets 45 on the highway when it gets 50 to 60 in town and on top of that bmw's are in general known for crappy gas mileage, my friends straight 6 bmw gets 15 in town and 21 highway

you guys really need to learn how to spell acceleration and I love my 1994 Grand prix only thing is it didnt come with a manual so i really am trying to find out how large the gas tank is and ive gotten 35 mpg with it btw you guys reallly just need to drive better lol so ya if anyone at all has any idea on what the gas tank size is that would be very helpful

I think its a 16 gal tank

I have a 2001 Grand Prix LE and it has a 16 gallon tank.

Your Answer

Add photo

Related Questions

Grand Prix

Looking for a Used Grand Prix in your area?

CarGurus has 2,871 nationwide Grand Prix listings starting at $900.


Search Pontiac Grand Prix Questions

Pontiac Grand Prix Experts

#1 Js08016
Reputation 4,170
#2 Tom Demyan
Tom Demyan
Reputation 2,840
#3 munron
Reputation 2,180
View All

Related Models For Sale

Used Chevrolet Impala
521 Great Deals out of 31,725 listings starting at $1,450
Used Dodge Charger
407 Great Deals out of 28,172 listings starting at $1,988
Used Pontiac Bonneville
3 Great Deals out of 533 listings starting at $1,799
Used Pontiac G8
24 Great Deals out of 370 listings starting at $6,500
Used Pontiac G6
83 Great Deals out of 4,115 listings starting at $699
Used Pontiac Grand Am
1,215 listings starting at $1,999
Used Chevrolet Monte Carlo
21 Great Deals out of 1,408 listings starting at $1,995
Used Pontiac GTO
5 Great Deals out of 452 listings starting at $6,000
Used Ford Mustang
472 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Malibu
950 Great Deals out of 79,654 listings starting at $1,500
Used Chevrolet Camaro
225 Great Deals out of 30,943 listings starting at $1,217
Used Chrysler 300
415 Great Deals out of 19,932 listings starting at $1,000
Used Dodge Challenger
184 Great Deals out of 24,169 listings starting at $8,800
Used Ford Taurus
249 Great Deals out of 20,433 listings starting at $699
Used Honda Accord
813 Great Deals out of 84,287 listings starting at $1,050

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.