Is there a downside to using E-15 in a newer vehicle

walterjay

Site Donor 2023
Joined
Apr 12, 2009
Messages
5,703
Location
Maryland
A Sheetz recently opened up on my regular route. I can get E-15 for 2.45 a gallon so I filled up the tank with it. At that price I will be ahead even with a small drop in mpg. Is there any issue long term on a two year old vehicle using this as a steady diet? Are fuel injectors affected?
 
no Sheetz in my area, but Casey's has E15 ( they call it "Unleaded 88")
used it quite a bit in my hybrid, noticed no appreciable MPG difference between E15, and the Normal E10 that every other pump in the dispenses.

the only time i noticed a difference from the Fuel, was when Casey's Sold E0 91 octane. with that I got about 5more MPG's than the E10, or E15...
and it wasn't the octane, I tried a Tank of E10 93, no different from any other E10.

honestly, i also don't notice much of a difference from E10, when i Run a tank of ~75% E10, and ~25% E85. ( mainly as a Fuel system Cleaner once or twice a year, even though I'm using Top Tier Fuel)
 
I believe that most new vehicles are now approved foe the use of e15.
I know that my buddy’s EQUINOX, my daughter’s CIVIC and my VENZA are all now approved in their owner’s manual.
 
I believe that most new vehicles are now approved foe the use of e15.
I know that my buddy’s EQUINOX, my daughter’s CIVIC and my VENZA are all now approved in their owner’s manual.
They claim vehicles from 2001 on up...
 
I guess I will move forward with 15 and see how it goes. Maybe 10 during very cold weather.

Theoretically more ethanol is better in freezing temps. It disperses more water, which can freeze fuel lines if water pools. But for the most part aftermarket water removers aren’t really needed with oxygenated gas.
 
E15 (often branded 88) has been a thing here in Eastern Iowa for several years now. We use it in our 2014 T&C, 2006 Jeep G&C and my boy uses it in his 2023 Ram Hemi. I have not noticed any drop in mileage over 87 E10 so we enjoy the decent savings.

This spring I actually switched to E85 in the T&C because of the economic advantage. E85 is very cheap here compared to E15 or E10, like ~40-50% cheaper and I haven't seen anything close to a 40-50% hit in mileage.
 
E15 (often branded 88) has been a thing here in Eastern Iowa for several years now. We use it in our 2014 T&C, 2006 Jeep G&C and my boy uses it in his 2023 Ram Hemi. I have not noticed any drop in mileage over 87 E10 so we enjoy the decent savings.

This spring I actually switched to E85 in the T&C because of the economic advantage. E85 is very cheap here compared to E15 or E10, like ~40-50% cheaper and I haven't seen anything close to a 40-50% hit in mileage.

E85 is performance fuel and allows for some extreme timing advance. So the efficiency relative to BTUs is higher.
 
They claim vehicles from 2001 on up...

My 2007 Ranger couldn't take it. From the manual:

1753821742849.webp


Fords need to be 2013 or newer to support it.
 
A spokesman for Ford Motor Co. replied to EPM’s inquiry, saying, “We have approved E15 for use in all 2013 Ford vehicles including hybrids and Ecoboost.” Richard Truett added, “We are not retesting any older vehicles to see if they are compatible with E15 and we’re not commenting on the performance of E15.”

Basel referred to earlier testing done on E15 as part of an industry group in her comments: “GM as part of an industry group has performed a multitude of tests on 2001 and newer vehicles that are included in the EPA regulations for E15 and have found that damage to the vehicle's engines resulted. For model-year 2011 or earlier vehicles, we strongly recommend that GM customers refer to their owners manuals for the proper fuel designation for their vehicles. In fact, we recommend this across the board.”

https://ethanolproducer.com/articles/gm-ford-announce-e15-compatibility-with-new-models-9195
 
Back
Top Bottom