i get about 250 a tank with intake and hks muffler

 

yea most of the time i would fill up when the light turns on. i dont know what the hell to do though cause if i fill up, i probably drop close to a quarter every drive. i recently just changed the spark plugs n everything. im moving out there but only thing will just be my job which im not quitting so i gotta figure somethin out

 

Check your tire pressure.

 

What spark plugs did you change to?

 

tire pressure is good on all 4 tires, spark plugs i got the oem. forgot the whole name of it but they are the oem plugs

 

yea I can get about 350 for every tank and mine is stock but also have 18" wheels which are heavier and that's even driving almost all city. Like other people said, don't slam on the gas at lights, check tire pressure, if all else fails I would try small things like premium gas (doubt that would change it much), fuel cleaner, or depending on when the last time was -- maybe you need an alignment? Also try to keep your car as light as possible, don't lug around heavy things in the back, etc. Your gas mileage sounds pretty bad it's probably just one or two things causing it...good luck

 

im thinking of trying some fuel additive i can buy at an auto parts store to see if that makes any difference. if anyone tried any that works or is good can you recommend any?? much thanks for the info from everybody

 

The only fuel additive on the market that actually does something is BG 44k fuel injector cleaner.

 

Your GF lives too far.

 

what we do for love lol. what im gonna do though is get my hazmat endorsement so i can hopefully get an oil truck driver position for the new spot ill be living at

 

Just tone down your speed a bit, check your tire pressure, and keep your rpm's low.

 

last quesiton, do you think a crimped vacuum line can cause bad gas mileage?? when i was turboed i didnt have a regular vac hose so i used this plastic one and when i thought about it after so long i forgot it was there. it was crimped real small like there was basically hardly any air gettin through. you think that can cause a factor or no?? im going to change it in a few minutes anyway

 

are you burning too much gas? the answer is yes. why? who knows. check your air filter, do you have a CEL light staying on? driving way too hard? you had it turbo'd before and now you don't? hard to really say what could cause it, look over every detail hopefully you find out what's causing it.