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Hello,

Here in Utah they offer ethanol free gas 88 octane. What are your thoughts or does anyone have any knowledge towards benefits? or should I just stick to the usual 87 Octane?

Thanks!!
 

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I think ethanol free will be better mpg
because I know when you switch to ethanol you do get worse mpg, even though sometimes its a little cheaper in cost
 

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Ethanol sucks its what's responsible for gumming up when you let it sit too long if you can get ethanol free use it.. Here's a great article I found that was informative...

If you’re from Oklahoma you’ve probably gotten used to seeing signs that say, “Buy 100% gas here”, “No ethanol”, “Ethanol Free”. That’s because a lot of Oklahomans share a love for pure gas. Jim Griffith, CEO of OnCue Express says this is one of the only states where you’re given the choice.

“There are pockets of clear product in other states but Oklahoma is just a little unique in that there are some people who don’t want to put anything but the pure product in their cars.” “Some people believe they get better performance. Some people believe they get better mileage…”

Jim says OnCue’s customers are split almost 50/50 between clear gas, and the 10 percent ethanol mix called E-10. The company also sells E-85, but it isn’t one of their stronger products. No one seems to know how this divide between E-10 and clear gas started. That’s just how it is.

“My husband says that the car will run longer so he says to put the better gas in.”

“People really do promote that 100% gas. I don’t know what it has to do with. I’ve noticed it all my family all my friends prefer the 100% gas.”

Most of the people I interviewed either wanted only pure gas, only ethanol or they didn’t care one way or another.

“This engine is specifically made to take gas that’s mixed with ethanol. The clear gas is like $0.20 more per gallon so I like it.”

“Even though it’s more expensive I will spend the money to put it in my truck. I think it’s going to make my truck run and last longer.”

Jim told me his suppliers are starting to sell him pure gas at a twenty to thirty cent difference and the 100 percent gas still sells just a little bit better. This got me thinking, is having pure gas worth spending a little extra money or are people really just paying for peace of mind?

“I prefer to run full gasoline all the time…”

I’m inside the garage of Stillwater Automotive. It’s one of the slower hours of the day most of the guys are out to lunch but a couple are still here with their heads stuck underneath car hoods. The 80’s hard rock hit. Round and Round by Ratt plays in the background. I’m with the office manager Robbie Daugherty and he’s agreed to set me straight on the facts and fiction surrounding Clear gas and ethanol.

“When you look at the chemical compositions of ethanol and gasoline….gasoline is definitely a more dense fuel in terms of energy that you’re going to get per pound. So it does more efficiently. You’re going to get more miles per gallon out of gasoline than you are out of ethanol most of the time.”

“If it’s relatively close to the same cost I absolutely stick with straight gasoline.”

But, Robbie added that the mileage difference isn’t huge when you’re talking about 90 percent gas and 10 percent ethanol. It’s when the percentage of ethanol compared to gasoline grows that you really start losing efficiency.

Now for my next question. Can ethanol damage your car?

“No most modern fuel injected cars run great off of the 10 percent ethanol mix. Where you get into problems is with systems that aren’t designed to run off of that mixture. Which are going to be your older cars, your carbureted cars, lawn mowers, motorcycles, things like that don’t run great with ethanol.

“The danger that we do hear about is that alcohol is a water based fuel so it does allow moisture into the fuel lines so we’ve heard reports about corrosion and rust in the fuel systems of those older vehicles because they’re not made for that.”

But those older cars are the exception not the rule. That’s actually good news considering that over the next nine years the federal government will require oil companies to add increasing amounts of ethanol to the supply of gasoline until there is 36 billion gallons of the stuff in 2022. Jim with OnCue says because demand for gas has dropped. In order to meet the federal standard oil companies want to push people away from clear gas and toward the ethanol product.

“A lot of this is kind of like when there was leaded gas and then there was unleaded. Nobody wanted to buy the unleaded until the price got enough different. I see the same thing happening with the E-10 and the clear. At some point they’re going to have to move over.”

Change may be inevitable, but Jim says it would be nice if lawmakers slowed down our ethanol nosedive to give his customers a little bit longer to catch up.

But for now, while we have a choice Robbie says most people shouldn’t stress out about which fuel is best.

“For most people that drive a modern fuel injected vehicle either one is going to run just fine, you’re not going to have problems either way so buy what’s available and don’t worry about it.”
 

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Pretty sure these bikes want 87 or 89 Octane Ethanol-free gas. Unfortunately I have yet to find any "pure" gas around here, just >10%
 

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If I could get ethanol free gas in NJ, I'd run it in everything, especially the bikes, mowers, and generators. My local lawnmower/small engine repair guy says 80% of the repairs he gets now are due to the effects of ethanol. It's especially bad for carb'd engines.
 

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The gas station I go to used to apparently sell 94 that was ethanol free and that was about it, now none of their grades are ethanol free and contain up to 10%
 

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hi all, in Australia we introduced ethanol into a lot of fuels at around 10%.Some cars would even run from the factory with e85, (thats 85% ethanol) this proved to be a total screw up. e85 if used for long periods gums up moving parts in the fuel system, and the back of inlet valves are as gummed up as a old oil burning worn out engine, and the engine oil stinks to hi heaven. its been quietly dropped from use by the big car makers now. Its a crap fuel and I wouldn't put it into anything with a sparkplug. Just ask your marine industry what they think of e10 ethanol in boat fuels. A total disaster on the water. Ethanol separates over time, in any form absorbes water then rusts out the fuel tank causing a hull to be full of fuel, a very explosive situation indeed. Even at 10% enthanol if left in a carburettor will corrode it,O rings and rubber seals, if not formulated to ethanol will swell, turn soft, leak and fail. Nothing old is safe from this evil marketing greenie backed wonder fuel. If you can STAY AWAY.....And that 10% enthanol doesnt burn when cold,& only ignites when properly blended and in a hot engine. I remember doing a cold start test in a cold cell @ -30C on a 6lt V8 engine on E85 ethanol. the fuel injectors that could feed that engine to [email protected] full power on regular fuel didn't flow enough fuel to start the same engine at -30C. that 85% ethanol doesn't burn at all when cold only the 15% petrol that's blended with it, so to start, it had to be 330% over rich just to start it.Needless to say the cold start emission were a big failure, and the whole thing was quietly dropped. anyway enough of my rambling on. cheers .
 

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I'm in the California bay area & ethanol free gas is hard to find here. And yes, non-ethanol gas DOES make a difference.

Ethanol is hydrophilic, so if you let you bike sit for 3 days with a half tank the ethanol binds with the water and sinks. This, in short term causes hard starting. Long term it'll rust out your tank. It also believe it or not, will restrict flow in your fuel lines once phase seperation sets in.

With non-ethanol fuel you'll get better gas mileage along with snappier response.

You can de-enthanate your own gas (I do for my bikes) if non-alcohol fuel is available in your area.
 

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If you can get ethanol-free I'd use it. I doubt the one octane higher will cause any problems. I wish I could find ethanol-free, but I can't
 

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I normally have pure gas 91 octane at my house for all the small engines. When I tried it in the Z, it seemed to run poorly at top end.
That was at ~300 miles, I may try again now that it has 1000 miles on it.
 

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I use 100% 91 octane in mine. Had it dyno'd after a couple tanks run through it and it runs great. Now if I use ethanol I don't get the same performance and get a lot of exhaust popping.
 
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