Re: What kind of milleage do you get?
Very interesting. Thanks for sharing.
The results are exaggerated a bit by the fluctuation in price differential between low and high test for the three vehicles.
Cavalier: 10¢ (but for 89, not 93)
The Cavalier today would cost a little more on 93 high test, If you normalize to the Safari prices (which I assume are the latest):
Fill up 87 - $40.00, 10¢ per mile
Fill up 93 - $44.80. 11.4¢ per mile (assuming 93 has same mileage gain as 89)
FWIW, our Honda gets slightly better mileage on ethanol-free gas than the 10 % ethanol mix, but that fuel is hard to find, because taking the ethanol tax credit doubles the station's net income, according to one dealer. I haven't done a cost comparison.
I did have a Peugeot mini-wagon in the '70s that had a "slant 4, single-overhead-cam hemi" engine. It did not run right on less than 92.
Someone said "Making good decisions comes from experience, experience comes from bad decisions." I say there are three kinds of people: those who learn from their mistakes, those who learn from the mistakes of others, and those who never learn.