gas mileage

[cuda_dude]

what kind of gas mileage does everyone get? I get 22mpg and thats driving my Z28 hard.

[KaotiKCamaro5]

i dont really pay that much attention.. just drive until i need gas, then fill it up..

[nlghtcrawler]

umm, i get about 28 when i drive like my grandma, but when i get a lead-foot i usually get 22 or 20

[Lotus49]

with my 94 Lt1, ive noticed between 5 and 25 mpg 5 being at 140 and 25 being at 40

[Lotus49]

but i know there is a problem.. bnecasue the past few weeks .. with VERY light throttle and not speeding.. ive averaged 180-200miles per tank... works out to sometimes 13-15 mpg... what is my problem?... i hollowed out the cat... there is no EGR going to it anyway.. here is what i have done to it... Took out the spring on the thermostat.. car now runs 140-160 all day... Throttle body bypass, Hollow cat, and a K&n Cold air intake..

[BiggyD]

your engine runs best around 175-185 degrees. put a stock stat on or reprogram.

[BiggyD]

oh yeah, I get around 20-23mpg

[cuda_dude]

how come you didnt just buy a 160degree thermostat?

[goldz28]

I get 27 on the high way at 80mph and prob 18 22 in town.

[Genopsyde]

Originally Posted by cuda_dude

how come you didnt just buy a 160degree thermostat?

he's a cheapskate.

[allthrottlenobottl]

i get 17-19 city and about 27 on the highway

[Dober89]

I get 15.

[NINÅ]

Originally Posted by Lotus49

but i know there is a problem.. bnecasue the past few weeks .. with VERY light throttle and not speeding.. ive averaged 180-200miles per tank... works out to sometimes 13-15 mpg... what is my problem?... i hollowed out the cat... there is no EGR going to it anyway.. here is what i have done to it... Took out the spring on the thermostat.. car now runs 140-160 all day... Throttle body bypass, Hollow cat, and a K&n Cold air intake..

Put the kitty back in the cat. Modern engines are designed for optimal airflow with the backpressure the cat provides for off the line acceleration, and if you need to worry about it: gas mileage.

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[sbackof]

99 z28 M6 450 miles best refill..... I normally avg at least 200 miles min normal everyday driving...225-300 miles is normal for me from fill to fill.