E85

Senna-F1 · 12-22-2018, 02:59 AM

Keep in mind E85 isn't always 85% Ethanol. They sell different blends based on where you live, and what the air temps are like in your area. So, probably best to do the whole flex fuel system to be safe.

"In the United States, the exact ratio of fuel ethanol to hydrocarbon may vary according to ASTM 5798 that specifies the allowable ethanol content in E85 as ranging from 51% to 83%.[1] This is due to the lower heating value of neat ethanol making it difficult to crank engines in relatively cold climates without pre-heating air intake, faster cranking, or mixing varying fractions of gasoline according to climate. Cold cranking in cold climates is the primary reason ethanol fuel is blended with any gasoline fraction."

12-22-2018, 02:59 AM	#6 (permalink)
Senna-F1 Enthusiast Member Join Date: Jun 2016 Location: Cary, NC Age: 55 Posts: 425 Drives: 370SC,EliseSC,MR2T Rep Power: 51	Keep in mind E85 isn't always 85% Ethanol. They sell different blends based on where you live, and what the air temps are like in your area. So, probably best to do the whole flex fuel system to be safe. "In the United States, the exact ratio of fuel ethanol to hydrocarbon may vary according to ASTM 5798 that specifies the allowable ethanol content in E85 as ranging from 51% to 83%.[1] This is due to the lower heating value of neat ethanol making it difficult to crank engines in relatively cold climates without pre-heating air intake, faster cranking, or mixing varying fractions of gasoline according to climate. Cold cranking in cold climates is the primary reason ethanol fuel is blended with any gasoline fraction." Hotrodz, Spooler and mrogersii like this.