well,
I'm not sure if this counts as a "Success Story" or if it belongs in the "Unicorn's Corral"
I've got a 1991 Geo Metro 3/5 with about 185,000
I just picked it up a couple months ago
I drive 55-60 miles each way to work (90% 2 lane highway 55/60mph (normally doing the speed limit to 5 over) lots of long hills)
I logged the first few tanks averaging about
44mpg (best of 46mpg)
then switched to NON-ETHANOL Regular (87oct)
the first tank (was actually only about 2/3 of a tank) got me about
49.5mpg and the 2nd tank got me
51.1mpg
this is a much larger difference than I was expecting
I just filled it up for the 3rd time, I'll log it,
then go back to regular E-10 for 2 or 3 tanks to see if it drops back down
what do you guys think?
My Metro (Geo Metro) | Fuelly
Edit,
the first few tanks were with the windows down about half the time
ever since the 3rd or 4th fillup, I've been keeping the windows closed or cracked open about an inch (not sure how much that makes a difference)