MPG decreasing

[Stichill]

Have you recently changed from 100% gas to ethanol-laced gas?

+1

10% ethanol would result in about 3.3% reduction in the BTU value of the fuel (110,210 BTU/US gallon E10 vs 144,000 BTU/US gallon gasoline).

+1

10% ethanol would result in about 3.3% reduction in the BTU value of the fuel (110,210 BTU/US gallon E10 vs 144,000 BTU/US gallon gasoline).
Ummm, those numbers reflect a 23.5% reduction....

+1

10% ethanol would result in about 3.3% reduction in the BTU value of the fuel (110,210 BTU/US gallon E10 vs 144,000 BTU/US gallon gasoline).
Ummm, those numbers reflect a 23.5% reduction....
So they do....good catch, thank you. Looks like I fat-fingered the gasoline figure: should have been 114,000 BTU/US gallon.