superbeagle
Registered
Very interesting. I was always under the impression that the ethanol lowers fuel economy and small engine life. I have to try a few tanks of ethanol free and see for myself.
ethanol free 90 octane...hmmm
- Thread starter Justyntym
- Start date
I run it locally and when I can find it on the road. The Gen I from memory is a no ethanol bike 
I don't know about the 1/3, but you are right it reduces fuel mileage.
SKnight
Registered
Rule of thumb is that the percentage of ethanol equates to the percentage of fuel economy loss. 10% ethanol is 10% economy. There are limits, if you put E85 (85% ethanol) in a regular vehicle you wont lose 85% of your economy, 40-50% is about what I hear but 10 and 20% usually match up to MPG loss.
Interestingly enough my company car is a flex fuel 2010 vehicle, it loses less than .5 MPG on E85. My 2006 flex fuel version of the same car lost about 2 MPG. Pretty impressive if tuned right, but I still would rather have my straight gas.
Interestingly enough my company car is a flex fuel 2010 vehicle, it loses less than .5 MPG on E85. My 2006 flex fuel version of the same car lost about 2 MPG. Pretty impressive if tuned right, but I still would rather have my straight gas.
Drop for drop there is more power available in ethanol free fuel. The ethanol content raises the octane for per-detonation resistance. Ran 90 free and 93 @ 10% through a ZX14R multiple times, no difference to performance or economy at all. Now.... run them through a turbo and the ethanol free gets better mpg (~5-7%) and butt dyno said a slight improvement too.
10-year-old thread!
It's well accepted that E85 makes more power than gasoline. Ethanol has 35% oxygen so the stoichiometric air/fuel ratio is lower. We've even run it on a stock motor Gen2 Busa. We did have to add about 30% more fuel. The bike picked up a couple mph and a tenth and a half in the 1/4 mile with no other changes. I don't know how 85% makes more power but 10-15% would make less properly tuned. Does not compute.
krishay.baxter
Registered
I have been using it in all of my small engines including bikes for several years with good success.
Last edited:
SSLogistics
Registered
In my trucks, cars, and bikes, I have never had a problem with e10 and the race gas I use in my car, Hayabusa is stock, has lots of alcohol in it.
I use AvGas in my small engine stuff like yard and garden equipment - good for 2 years and it smells like the track when I am tilling the garden or cutting up a tree... alcohol and whatever the hell else they are putting in pump gas these days is some nasty crap. I was out of AvGas and put regular pump gas in a machine at the end of last Summer and this Spring the carb is full of what looks like orange fish eggs.
I use AvGas in my small engine stuff like yard and garden equipment - good for 2 years and it smells like the track when I am tilling the garden or cutting up a tree... alcohol and whatever the hell else they are putting in pump gas these days is some nasty crap. I was out of AvGas and put regular pump gas in a machine at the end of last Summer and this Spring the carb is full of what looks like orange fish eggs.
Similar threads
