I Have a 99 Teg LS with about 73,000 miles. It has AEM CAI, Skunk2 exhaust as far as performance mods. What should my gas mileage be for a full tank. Also im running 17" wheels with a 205/40/17 tire. Does anyone have any idea what it gets when its stock and what I am to expect with these mods. Was gettin just under 200 on a full tank. Just changed the plugs a lil bit ago and did see an good increase. Does anyone think maybe a fuel filter change might help. I bought the car used with about 62,000 on it and i doubt it has been changed.

 

Your gas mileage should be slightly better than when you bought it. 200 per tank is shitty for your car.

 

ummm... its not gonna get any better. especially with performance mods which will allow u to burn more gas, regular maintance will yield u the highest gas mileage, so yah check out ur fuel filter, air filter, spark plugs cap and rotor and just do ur regular maintainance.

 

I've got a 94 GSR which I bought in 98 with 63,000 miles. Totally stock engine and tire size, @ 122,000 miles now. I get 300 miles/tank if I keep my right foot light. 150-200 miles if I am always jammin.

 

measuring mileage by the tank is grossly inaccurate. get the actual figure.

my 96 gsr would consistently get 27-28 mpg with mixed city and freeway driving, and i drove it pretty hard. redlined atleast a couple times a day

i would say if you're getting less than 25 mpg theres something wrong

 

I get about 600KM per tank 11 gal [92 SI HB] and my old Acura GS Auto would get about 600km per tank 13.9G HWY

they are both stock and the 17 wheels would make it a bit worse other than that you should get about 280 driving it as hard as you can in the city so something is wrong with your motor. Have you fixed it yet???

 

check your fuel filter, although it shouldn't be that bad since your car has low miles on it.. but go get a $10 fuel filter from napa and install it.. it can't hurt it! also my 92 accord lx 5spd with cone-style filter gets 16.6 MPG!!!! don't ask me how it just does... 250 miles on a full tank of 15 gal. haha

 

hmm...the exaust and intake shouldn't really make any noticable difference. the best way to maximize the miles is to maintain your car properly. sometimes i feel like i overmaintain it. every few thousand miles i check the valve clearance, change the oil/filter, use fuel system cleaner, and a few other things. i get about 25-28mpg...and i drive very hard.

 

I find that mileage can vary tremendously depending on how I drive. On a 200 mile highway cruise for example, I find I get about 35-37 mpg, while in aggressive city driving with frequent trips to redline, I'll get 23-25 mpg. The engine is a D16Y8 with JRSC and header.
Also, to get accurate mileage numbers, divide total miles/kilometers accumulated since last fill up by the total number of gallons/liters required to fill up the tank (don't "top off").

 

My CRX at it's former 400hp tune got 26 MPG city/aggressive driving and low 30's on the highway. Thats running 900cc injectors on a 1/2 assed N/A tune section with a crappy 02 sensor as well.