offroadordnance

High idle probably a vacuum leak that contributes to lean misfires. Running the E10 would make it run even leaner and could cause more misfires killing mileage. I'd look for vac leak, fix if found, and see if mpg improves with E10

crc

An intelligent comment by offroadordnance. I thought comments weren't going to get past the "ethanol is crap and it's ruining my engine" b.s.

hankthetank

I haven't seen anyone say that...this is about difference in mileage.

rockdoon

After my findings I can't justify the 20 cents more for everyday driving but for a road trip it's goin in my tank

Malik3404

Ok filled up today, OUCH $4.75 vs $4.30 at a regular station right next door.

I will say she does idle a tad better and alil boost in the butt dyno area, not sure if its worth the extra $7 or so for a fill up thou. I'll see how many miles I run before I decide to hate it or not.....

To be honest I was surprised to see several car filling up including a lady in a sweet black gs460.