E15? [WARNING: NO POLITICS]

[The Last Cowboy]

E15 won't hurt anything, or E30 for that matter. To run on E85 requires different tuning and injectors.

The bad thing about ethanol is that it is hard on certain rubbers and plastics. If a vehicle is not built to handle ethanol you can expect these parts to deteriorate after time. Shouldn't be a problem for most cars built in the last 15 years or so. The other bad thing about it is that is stores poorly. Ethanol blend fuels break down quicker and ethanol, being a form of alcohol, readily mixes with water, further complicating fuel line issues.

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[blnewt]

The other bad thing about it is that is stores poorly. Ethanol blend fuels break down quicker and ethanol, being a form of alcohol, readily mixes with water, further complicating fuel line issues.

Very true, all my 2 stroke lawn equipment pretty much has to be gone through every winter w/ complete carb & fuel filter/line cleansing. Gold old days where you could just fire it up year after year w/ only real concern was running out of gas are long gone
Hate that Ethanol crap!

 

[four low]

Would some one define " slight decrease in mpg" with real- world actual numbers, Your " slight decrease" might be my
"Major decrease"
Example ; 10% Ethanol gives me a 3 mpg decrease over the same octane Non- ethanol. This is my actual experience, not "I saw it on YouTube ". Over 10,000 miles, that's how many gallons and or miles difference.??
So E15 could be expected to give 5 mpg decrease over non ethanol, or 2 mpg less than E10.
Those with actual E15 experience , please chime in.

 

[blnewt]

Would some one define " slight decrease in mpg" with real- world actual numbers, Your " slight decrease" might be my
"Major decrease"
Example ; 10% Ethanol gives me a 3 mpg decrease over the same octane Non- ethanol. This is my actual experience, not "I saw it on YouTube ". Over 10,000 miles, that's how many gallons and or miles difference.??
So E15 could be expected to give 5 mpg decrease over non ethanol, or 2 mpg less than E10.
Those with actual E15 experience , please chime in.

No e15 here, but w/ my e10 on our Infiniti G I would get 30mpg w/ ethanol free (ran it for a couple years until the whole town no longer had it). With e10 it went to 27 w/ the exact same conditions.
And add in the "winter blend" crap it went down another 2 mpg give or take.

 

[OldBlue]

Very true, all my 2 stroke lawn equipment pretty much has to be gone through every winter w/ complete carb & fuel filter/line cleansing. Gold old days where you could just fire it up year after year w/ only real concern was running out of gas are long gone
Hate that Ethanol crap!

And that's the reason for the last 10 years or so I only use pure gas in my lawn and farm equipment, as well as my older vehicles ('94 Ranger, '90 Miata).

 

[blnewt]

And that's the reason for the last 10 years or so I only use pure gas in my lawn and farm equipment, as well as my older vehicles ('94 Ranger, '90 Miata).

We don't have any source for pure gas except going to the airport and get racing/aviation fuel, might have to give that a try though. I have a couple 40v electric trimmer/blowers but they just don't have the same power.

 

[Sean L]

Would some one define " slight decrease in mpg" with real- world actual numbers, Your " slight decrease" might be my
"Major decrease"
Example ; 10% Ethanol gives me a 3 mpg decrease over the same octane Non- ethanol. This is my actual experience, not "I saw it on YouTube ". Over 10,000 miles, that's how many gallons and or miles difference.??
So E15 could be expected to give 5 mpg decrease over non ethanol, or 2 mpg less than E10.
Those with actual E15 experience , please chime in.

• My computer average is usually around 20-21 MPG running on E10.
• On E15 it was around 19.7-20.5 ish.
• Running on 100% Gasoline (that for some reason I can only find in 93 Octane so it's phenomenally more expensive) it's around 20.5-21.5.

Some more pertinent info to my driving style:

• I use ESS at Stoplights and avoid using it at stop signs.
• I typically use the cruise control at 65 on the highways.
• I run Auto AC at 75 when I have the top up.

Everyone's mileage will vary, so take my Data with a grain of salt.

 

[Sean L]

We don't have any source for pure gas except going to the airport and get racing/aviation fuel, might have to give that a try though. I have a couple 40v electric trimmer/blowers but they just don't have the same power.

AvGas in a Jeep might make for a spectacular explosion should you get into an accident.

 

[Bryce]

And that's the reason for the last 10 years or so I only use pure gas in my lawn and farm equipment, as well as my older vehicles ('94 Ranger, '90 Miata).

Yep, I just replaced the complete fuel system on an 84 Bronco II from the tank to the carb.
Ethanol and lack of use. Rust, clogs, gunked up, etc.
100% gasoline and Sta-bil in it now.

 

[El Zilcho]

And here's what I was able to find from a '19 owners manual. The answer still seems to be yes.

It literally says in the first sentence DO NOT use E-15.

 

[Sean L]

It literally says in the first sentence DO NOT use E-15.

More Than 15% is not E-15.

 

[JSFoster75]

I've been using 87 octane in my 2.0L with 10% Ethanol for over 16,000 miles with no issues that I'm aware of. I don't think we have E15 here though?

 

[OldBlue]

It literally says in the first sentence DO NOT use E-15.

No, it says E85 or MORE THAN 15%.

 

[El Zilcho]

More Than 15% is not E-15.

I understand what the sentence implies, but ask your lawyer how it could be interpreted in court

 

[JSFoster75]

• My computer average is usually around 20-21 MPG running on E10.
• On E15 it was around 19.7-20.5 ish.
• Running on 100% Gasoline (that for some reason I can only find in 93 Octane so it's phenomenally more expensive) it's around 20.5-21.5.

Some more pertinent info to my driving style:

• I use ESS at Stoplights and avoid using it at stop signs.
• I typically use the cruise control at 65 on the highways.
• I run Auto AC at 75 when I have the top up.

Everyone's mileage will vary, so take my Data with a grain of salt.

I'm averaging 19.4mpg with 87 Octane on a 2.0L eTorque Rubi over the past 10 fill-ups, and I live in the foothills of the Appalachian Mountains.

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