So i do most of my driving to school and back and to work, then driving to like the mall and such. I drive i'd say about 90% city and 10% highway. I don't really get on her too much the specs say i should be getting 17 mpg city. Anybody have any ideas why i would be getting 5mpg less? I checked my tire pressure they're all fine, rotated the tires and had them balanced and checked my air filter all are good. Any other ideas on things i should have checked? Really trien to improve my gas mileage im getting killed on having to refill so much.

 

do all the normal stuff...
clean maf
air filter
oil
plugs
wires
coil
tires and alignment

FWIW: my car gets 14 in the city and 25+ on the highway, its a heads/cam, gears all the bolt ons

 

if u havent changed your O2s in a while, that might be something to look into...if nothing else helps can perhaps have your cat(s) checked to see if its clogged.

 

More than likely it's your driving style. If I totally babied my stock LT1, I might have got 16/17mpg, but you had to really try. Freeway, I could get 24 all day.

I usually got 12/13mpg on my bolt on LT1, now with the 383, I get closer to 9/10mpg. Most of my driving is around town to and from work.

-Keith

 

start changing gurrs at 2500 RPM and you'll notice a big difference.

Pay no attention to the minivans zooming past you


No its not that bad..

 

Well considering that most your driving is city 90% anyways, 12 aint that bad, i get about 11 with about 95% city driving, hell a lot of the newer cars are rated like 15-16. I would do what svt killer lv said to do, might help some.

 

I agree, shift at 2500 or maybe even a little sooner. Around town I will shift at 2K, with the CC306 in my car it won't pull at all, but gas milage improves a lot.

 

Do you have any mods? With the mods that I have on my car I get about 12.5 mpg in the city. I usually have at least on road race in between fill ups, these damn ricers keep thinking they are faster then me!!!! Someone has to show them