Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - Anyone else notice a HUGE loss in MPG, It's NOT your imagination

redpoint5 · 02-11-2022, 06:31 PM

While my memory may be faulty, I seem to recall MPG dropping 10% when E10 was introduced in my 1996 Subaru Legacy. I did no controlled tests though, so I would expect the actual decrease in MPG to be less.

There's no point in fuels with higher ethanol concentrations unless they have defined what problem is being solved, and how that solves it IN ADDITION TO engines being specifically tuned to operate with that ratio of ethanol.

Just because an engine can run on higher concentrations of ethanol doesn't mean it's a good idea.

02-11-2022, 06:31 PM	#2 (permalink)
redpoint5 Human Environmentalist Join Date: Aug 2010 Location: Oregon Posts: 12,803 Acura TSX - '06 Acura TSX 90 day: 24.19 mpg (US) Lafawnda - CBR600 - '01 Honda CBR600 F4i 90 day: 47.32 mpg (US) Big Yeller - Dodge/Cummins - '98 Dodge Ram 2500 base 90 day: 21.82 mpg (US) Chevy ZR-2 - '03 Chevrolet S10 ZR2 90 day: 17.14 mpg (US) Model Y - '24 Tesla Y LR AWD Pacifica Hybrid - '21 Chrysler Pacifica Hybrid 90 day: 43.3 mpg (US) Thanks: 4,326 Thanked 4,476 Times in 3,441 Posts	While my memory may be faulty, I seem to recall MPG dropping 10% when E10 was introduced in my 1996 Subaru Legacy. I did no controlled tests though, so I would expect the actual decrease in MPG to be less. There's no point in fuels with higher ethanol concentrations unless they have defined what problem is being solved, and how that solves it IN ADDITION TO engines being specifically tuned to operate with that ratio of ethanol. Just because an engine can run on higher concentrations of ethanol doesn't mean it's a good idea. __________________ Gas and Electric Vehicle Cost of Ownership Calculator Give me absolute safety, or give me death!