[cleaner13]

hello to everyone, Im brand new to signing up but not to the forum as Ive read tons of articles here.

The reason Im posting is very simple

I have a 96 geo prizm with over 200K miles 5 speed and 1.6L and I cannot get past 34mpg in this car
In the summer with no mods I was averaging 38

I only travel 12 miles one way and leave at 1030pm
The car is fully tuned up, new cap/rotor, plugs, wires, oil and filter, air filter
The header was replaced with a stainless steel one as the original was cracked and the aftermarket was less money

I installed a vacuum gauge and at idle the engine is at a dead steady 22.5psi
I follow toyota/geos recommended shift points from the manual
The tires are all aired up to their max safe psi
I also taped off the grill and the middle part of the bumper with the very bottom still open.

I have a few mods I was waiting to do, which included changing the fuel filter, synthetic trans oil and maybe the moon discs

I do not know what else to do, but I see a few people on here with the same vehicle and either less mods or none and they are averaging 40mpg...


Any suggestions?

thank you for your help