I wouldn't use it in any Honda. IMO it's not worth the risk of ruining your engine. It might be ok in some Honda's but service techs highly advise against it. Most Acura's are premium fuel only.
Anybody have E-15 Ethanol concerns?
- Thread starter Capt W
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At least here in Wisconsin we have 91 octane ethanol free. I run that in all my small lawn equipment. I don't have any cars that run on gasoline though. That said, for modern cars I'm sure E15 is fine. Older cars may not be able to properly adjust and add enough extra fuel to compensate for the less energy density of ethanol.
I assume the ECM should add more fuel based on the O2 readings? If it maths out cheaper I dont have any problems with E15.
All fuel here is e10 regardless of octane. My jeep and the fJ specifically say not to use fuel with more than 10% ethanol.
I am a little concerned about the e15 we will be forced to use. Part of me thinks an extra 5% won't matter in those cars.
I will not use it in the off road toys or yard equipment so there lies the problem.
I am a little concerned about the e15 we will be forced to use. Part of me thinks an extra 5% won't matter in those cars.
I will not use it in the off road toys or yard equipment so there lies the problem.
As long as not mandated I dont care here in Kansas. Safe monies says just to buy clear 91,pay more but recover some in the mpg being non ethanol
Currently running vp 110 in my mower
If you equipment allows greater than >10% Ethanol then run it. Otherwise it's not worth the risk. Unless you're driving an older Prius where the $0.10 savings makes more sense I'd skip it & go straight to 87 octane. The US Gov't says 2001+ are okay to use 15% but AAA did a media post around 2012 stating many vehicle OEM's would void their warranty if using over 10%.
I was running E15 88 octane for the last year or so in the Volvo but I've just gone back to 87 recently. Like I mentioned the 10 cent savings isn't worth damaging the fuel system or engine. You don't want to use ethanol in carburetor applications as they will corrode faster unless specifically allowed in the engine manual.
I was running E15 88 octane for the last year or so in the Volvo but I've just gone back to 87 recently. Like I mentioned the 10 cent savings isn't worth damaging the fuel system or engine. You don't want to use ethanol in carburetor applications as they will corrode faster unless specifically allowed in the engine manual.
Depends where you are. They all have ethanol here
Dedicated to the mission!Currently running vp 110 in my mower
I believe the higher ethanol content the shorter the oil change intervals too. While this is generally for e85, im sure that e15 has some of the same issues depending on operations and conditions.
Essentially, if you put trash in and expect treasure out you are sorely mistaken. I unfortunately put treasure in with E5 and quality products/fluids but didnt get any gains out just merely feel good and maybe better reliability.
That's right, it can cause more fuel dilution in your oil. I've seen it mentioned in manuals to change the oil more frequently if higher than 10% is used, in applications where it's acceptable, as a result.
absolutely but that doesn't invalid my points/argument.
.5% less energy but higher octane in a turbo...
using my outback you are looking at maybe .14mpg(assuming the higher octane did nothing) in my outback XT.. mpg can vary 2-3mpg from a headwind.
it can be upto 50cents cheaper than 87octane. 3.43 vs 3.93 currently
Also from testing fuel locally:
I usually get around 7% in e10 and 12-13% in e15 which makes sense because its a blender pump.
Your post said E15 vs E10. It said nothing about 87 vs 88 octane. Higher octane does allow further timing and valve advance. Whether that helps will depend a lot on the car - as you noted.
Additionally this entire thread is about using E15 in every grade - not just 88, so for most its going to mean less energy / worse MPG on the margin - likely around 1/2%. There is no discount for 87 E15 vs E10 - around here at least.
If the system (injector pulse width available, for example) can handle that much of an increase, and the components can handle the increased alcohol concentration, then, yes, your assumption would be correct.
But, and this is the important part, it is an assumption.
If the manufacturer specifically says not to use the fuel, the assumption is wrong, but you don’t know how it’s wrong - whether the system can’t handle the increased fuel volume, or if the system can’t handle the corrosive nature of alcohol.
is that in the Premium?
here there are a few stations that have regular 87 no ethanol for maybe 40 to 50 cents more than E10
thats what i buy mainly because of my 90's vehicles, atvs etc, i keep several jugs of 87 free on hand because it keeps better than e10
What I've seen, this varies across the country, and possibly station-by-station. Locally, the stations I've seen non-ethanol don't market it as Premium, but simply non-ethanol, They use a totally different pump handle and signage showing 90 octane. In Shell stations I've stopped at in Wisconsin and Iowa, their Premium (V-Nitro+) are 91 octane, non-ethanol. As you've reported, you're aware of non-ethanol 87 octane.
As of two days ago, the Quik Trip station nearby was selling 90 octane, non-ethanol gasoline for $4.809/gal vs a block away, the Shell Premium 93 octane with up to 10% ethanol was priced at $4.349/gal.
Yes an inadvertent ommission on my part. there's no 87 e0 here just rec gas 90 octane everything else is e10.
10%? I thought that it was closer to 50% less btu per measure.
It's more 33% than 50%
80k btu vs 120k
If you wrote it differently
Gas has 50% more btu than ethanol
Is correct
Ethanol has 33% less btu than gasoline is also correct
Average numbers it can vary.
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