E85 making a come back?

Joined
Jun 3, 2005
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Location
Arizona
I seem to remember E85 was kind of a late 90s, Early 2000s thing that no one really used. My 26 Trax is E85 capable. The only non large truck/suv that can currently use E85.
 
It was around a decade ago - but I can’t find any lately. I used to run the Tundra (which is flex fuel) on E85 when E85 was significantly cheaper than regular, and noted that it seemed to have a bit more power. But the Navy Exchange in Virginia Beach stopped carrying it. Now, in Orlando, I can’t find it either.
 
I think you're seeing a push in ethanol additization in general to secure domestic gas supplies and lower prices, especially in light of whats been happening "over there". Also, the President is BIG on supporting the agri side, so corn market will stay flush for the foreseeable future. Lots of push to make E15 a permanent part of our fuel landscape instead of just E10 and then there is the EPA :rolleyes:. Thought we where gonna get rid of that 😁.
 
I used it almost exclusively in my F150 in 2018/2019, it was about 50% the price of E10 at the time. Last 5 years I really haven't seen as favorable a price spread so I haven't been using it. I take around a 20% MPG hit using it.

I assume that because e85 is 55%-85% ethanol, the price spread changes based on whatever % you are getting.

Is 55% ethanol more expensive than 85% ethanol?
 
Never left the Midwest around here: Kum & Go/Maverick, QT (newer ones) & Casey's all have pumps.

I have Subarus and they don't recommend it. Sister used to use it in her flex fuel Dodge/Chyslers but now uses Sam's gas now for convenience.

I am not convinced of either the economic value of it or what it may do to non-e85 cars.
 
Still plenty of E85 in my area on NW IA, though we are the primary source for corn as well. But I hardly know anyone that uses E85 besides people using it as race gas.

15% ethanol I'm not a fan of. I tried it in my 3.5 ecoboost F150 and saw a loss of 2-3mpg and at idle it was a little shaky. In our Subaru Ascent we saw a similar drop in fuel economy as well, but ran fine. When I had a 2012 F150 5.0 flexfuel I tried E85 for a few tanks. I recall it taking more throttle for the same acceleration and fuel mileage dropped significantly to the point where E85 had to be 1/2 the price of 87 for the dollars and cents to break even. Not to mention as it got colder it took longer to start and took a lot longer to reach operating temperature, sometimes 30+ minutes of driving. So I never used E85 again just because I didn't like how it ran and seeing a 36gal tank (usually filled at 1/8th tank) barely make it over 300 miles really bothered me, just felt like a waste.
 
I used it almost exclusively in my F150 in 2018/2019, it was about 50% the price of E10 at the time. Last 5 years I really haven't seen as favorable a price spread so I haven't been using it. I take around a 20% MPG hit using it.

I assume that because e85 is 55%-85% ethanol, the price spread changes based on whatever % you are getting.

Is 55% ethanol more expensive than 85% ethanol?
Typically the percentage changes are due to seasonal temps. In NW IA we typically see 78-85% (station dependant) from late Feb/early Mar to around mid-late Sept. During the colder months the percentage decreases due to it being harder to start at low temps. Though in my area the prices don't change with seasonal changes, seems to follow in line with the rest of the gas price changes.
 
Only on station near work carries it anywhere around me. I can certainly tell a difference in power versus 87 but the math doesn't work at $3 vs $3.75. We took a trip to Mt Rushmore two weeks ago and it was under $2 several places so we used it then.
 
What happens if you put E85 in a no E85 car?
It will most likely be extremely lean if it'll run at all, because stoichiometric for E85 is 9.7:1 and E10 is 14.3:1. Non Ethanol is 14.7:1
Flex fuel vehicles use wideband oxygen sensors, non flex use narrow band sensors and a narrow band won't be able to make the adjustments needed to the short and long term fuel trim tables.

If it will run (terrible) your injectors will clog soon because the E85 will eat the glue from you your paper fuel filter and send it down your soon to rust non stainless steel fuel lines.
 
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