Anyone use 88 octane e15?

benmack1

benmack1

Well-Known Member
Joined
Oct 13, 2010
Location
USA
Never tried it but sheetz has it. I read all 01 and newer cars are fine to use it. I have a 13 Corolla, 16 accord and 19 odyssey I am thinking to start using and see. About 50 cent/ gal cheaper which is about 12% with a 2% mpg loss from what I read. Thoughts or experience?
 
My old 2014 Silverado with the Ecotec3 5.3L was flex fuel rated. I tried a few different grades, E85 and E15 stuff. All of it made the fuel mileage worse. Ethanol simply has less energy per unit volume so even though you can tweak the timing on the engine to make more horse power it simply cannot deliver as much mileage as normal gasoline for most vehicles. I could always tell when I got a "good" tank of 87 as the vehicle would just drive better and return better mileage.
 
I'd be surprised if the MPG loss is only 2%, I'd wager-5-10 but it may not be as much as the price difference either. Then its a question of any additional issues w/ the higher ethanol.
 
RatLabGuy said:
I'd be surprised if the MPG loss is only 2%, I'd wager-5-10 but it may not be as much as the price difference either. Then its a question of any additional issues w/ the higher ethanol.
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Reference. E15 Fuel Information - Iowa Renewable Fuels Association

  • In a real-world environment, the difference in mileage between Unleaded 88 and regular gasoline is virtually undetectable. Studies by Oak Ridge National Laboratory and the National Renewable Energy Laboratory have shown that with all other things being equal, in a controlled environment, ethanol’s impact on fuel economy would be equal to the loss of energy density. This translates into a loss of less than 2% for Unleaded 88 when compared to regular gasoline. For a vehicle getting 30 mpg this would equate to a drop to around 29.4 mpg, or about the loss of miles to the gallon when vehicle tires are improperly inflated.

Nice article beyond that part too
 
My wife’s 22 pilot gets 4-5 less MPG on the 88.

Seems to have less torque (we live in mountainous zone) as well.
 
2% is skewed big time. It would kill fuel mileage in our old Explorer when we tried it. Sheetz used to do it for .99 often but wasn’t worth it.
 
benmack1 said:
Reference. E15 Fuel Information - Iowa Renewable Fuels Association

  • In a real-world environment, the difference in mileage between Unleaded 88 and regular gasoline is virtually undetectable. Studies by Oak Ridge National Laboratory and the National Renewable Energy Laboratory have shown that with all other things being equal, in a controlled environment, ethanol’s impact on fuel economy would be equal to the loss of energy density. This translates into a loss of less than 2% for Unleaded 88 when compared to regular gasoline. For a vehicle getting 30 mpg this would equate to a drop to around 29.4 mpg, or about the loss of miles to the gallon when vehicle tires are improperly inflated.

Nice article beyond that part too
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Yeah well I track mileage religiously, every tank, and my 18 Mazda3 dropped from 29.5 to about 27.8 on it.
Obviously thats a single sample but I'll take real world data over the association who are implicitly responsible for making it look good.
 
I pretty much get it exclusively. Regular 87 has 10% ethanol already, so 15 is not that big of a difference. We have a flex fuel suburban and have not noticed any drop in milage. My son drives a 1995 2.3l ranger and uses it also. He noticed 1mpg drop but the price difference is still worth it.

Funny thing is Sheetz has E85 for the same price as the 88. I noticed a 2mpg hit on the E85 but nothing on the Super 88.
 
NCJeeplover said:
Regular 87 has 10% ethanol already,
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Up to 10%. I don’t believe it has near 10% usually.

The 88 is supposedly blended to be 15%.

I tried it on 2 work cars and their mileage significantly dropped as well.
22 Pacifica (my regular work whip) and 25 Pathfinder.
 
I can’t explain more later - but I wouldn’t put it in a Toyota. There is a known issue with their ethanol % timing chart
 
Silverado_Express said:
So what everyone is saying is "this is the Internet and yes it's the same but no it's different" got it.
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download.jpg


Duane
 
rockmafia said:
I've probably put 500 gallons of it in my 15 sienna. Runs the same and gets the same MPG as the other 10% corn gas. We run it in everything but the lawn mower.
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On a keyboard and got a bit more time.
Toyota has had an issue going back a decade. They use a Bosch sensor to detect ethanol and adjust timing and flow rates.The sensor feeds into a table that doesn't reset. As a result, unless you have access to a programmer and occasionally manually reset the ethanol table, you will get a slow continual degradation in mpg over the life of the vehicle. In extreme cases it manifests in slow/hard starts.

There is a reason low mileage '14 and '15 no FFV tundras with the 5.7 will command almost new pricing today on the enthusiast market.
 
Ron said:
On a keyboard and got a bit more time.
Toyota has had an issue going back a decade. They use a Bosch sensor to detect ethanol and adjust timing and flow rates.The sensor feeds into a table that doesn't reset. As a result, unless you have access to a programmer and occasionally manually reset the ethanol table, you will get a slow continual degradation in mpg over the life of the vehicle. In extreme cases it manifests in slow/hard starts.

There is a reason low mileage '14 and '15 no FFV tundras with the 5.7 will command almost new pricing today on the enthusiast market.
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That's very interesting
 
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