The E15 will do NOTHING for fuel mileage, it may/will be cheaper per gallon. Typically using 10% you'll lose 10% mpg so I'd assume 15% you'll lose 15%. The only one that gains from the use of ethanol as fuel is the farmer growing the corn.
__________________
Fulltimed 10+ years
Sold '13 Thor Redwood 36 FB
Traded '13 GMC Denali DRW D/A
Replacement undetermined
If you are really concerned about fuel I suggest you go to this website: Home | Top Tier Gas
Read everything and then think about what brand of gas you want to buy, there is a difference!
Straight gasoline has 114,500 btu's per gallon, ethanol E85 has 81,800 btu's per gallon. Bottom line is the more ethanol you add to gasoline the less thermal energy is produced whic means less power and miles per gallon of fuel.
Linear Mode
