Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post - EPA has approved E15 for cars newer than 2001

mwebb · 10-12-2011, 01:21 AM

E15 (a blend of gasoline and ethanol) | Fuels & Fuel Additives | US EPA

i have not seen this posted here , if it has been , i apologize ...
i was looking for something that may cause an extreme drop in FE for the last few tanks of fuel .
my system does not show any symptoms of problems and intake vacuum is right at about 20" at hot idle , where it has always been ... no DTCs or changes in fuel trim values ,brakes do not drag , tire pressure at 50psi , verified , yet FE is down .

no labels on the pumps where i buy fuel are claiming E15
i use only Shell top tier fuel .

not cold here , yet , 70f in the day time 50f at night

no doubt , E15 will not improve FE .

10-12-2011, 01:21 AM	#1 (permalink)
mwebb Master EcoModder Join Date: Jul 2009 Location: New York Posts: 513 no nickname , it's just a car - '04 volkswagen golf tdi Thanks: 2 Thanked 101 Times in 74 Posts	EPA has approved E15 for cars newer than 2001 E15 (a blend of gasoline and ethanol) \| Fuels & Fuel Additives \| US EPA i have not seen this posted here , if it has been , i apologize ... i was looking for something that may cause an extreme drop in FE for the last few tanks of fuel . my system does not show any symptoms of problems and intake vacuum is right at about 20" at hot idle , where it has always been ... no DTCs or changes in fuel trim values ,brakes do not drag , tire pressure at 50psi , verified , yet FE is down . no labels on the pumps where i buy fuel are claiming E15 i use only Shell top tier fuel . not cold here , yet , 70f in the day time 50f at night no doubt , E15 will not improve FE .