Posted by Verdi on March 06, 19100 at 09:48:34:
In Reply to: Tire sizes and gas milage posted by KSHEEHAN on March 06, 19100 at 09:04:45:
: Since gas prices are getting out of control I've been thinking of going to a smaller tire on my'91.
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You'll notice a bigger mileage difference by changing your driving habits than by changing your tires. (Not to say your driving habits are bad...)
I notice a huge difference in needle movement if I keep the pedal away from the floorboard and keep the speed down. I think that at a certain speed the wind resistance starts getting exponentially worse and mileage goes to Hades.
I've also started running on 87 octane with no noticeable difference. I used to run 91-93 octane and I now believe I've been wasting my money. Haven't put the 87 octane under any appreciable load yet, though...