(http://www.cleanairtrust.org/E85-Gas-Mileage-Consumption.html)Compared to gasoline and diesel, the gas mileage in ethanol is the least. Ethanol only has 30.40 energy content, which yields about 34% less gas mileage than gasoline. Because E85 fuel only has around 80% of the energy of gasoline, full usage of the said fuel alternative remains to be in question. Certainly, the lack of energy content in E85, which accounts for the two percent to 30 percent loss in gas mileage, is not to be discounted especially by the public. Also, it has been observed with fuel combination, gas mileage drops as there is less gasoline present in the fuel mixture. Taking a look at gasohol, which is a mixture of 10% ethanol and 90% gasoline, energy content is at 28.06 MJ/L. If you will compare this E85, which is a mixture of 85% ethanol and 15% gasoline, energy content is lesser as the ethanol content is much higher than the gasoline. Now, you can only imagine how less the energy content is in pure ethanol. E100, which is the pure ethanol fuel, only has 19.59 MJ/L energy content. This is way far behind the 29 MJ/L energy content that pure gasoline gives, hence using pure gasoline yields more gas mileage.
Ethanol will worsen gas mileage and it also can cause corrosion in the fuel system. How much is arguable, though.
E85 may be cheap, but like I said, gas mileage is horrible.
first time, ok, 2nd time? wtf? wasn't the new gasket "new"?
Not to be a dick, but I call BS - 22% loss in fuel efficiency with E10? I'm anti-ethanol (depending on the source anyway) but this seems ridiculous.Also drops from 38mpg ave to 30mpg when I have to use that garbage.
Like the poster before you so eloquently put it - WTF? Make a gasket out of something else then that will handle the ethanol.Unfortunately Yamaha doesnt make a gasket for this bike that can handle ethanol (they quit making it in 98). .
It also makes them run lean. When Ethanol first started being blended into gas there were numerous problems with small 2-strokes sticking because of the leaner mixture. Manufacturers have since adjusted the mixture to compensate for Ethanol blend, and now you run slightly rich (on newer "adjusted" engines) if you run Ethanol-free.the engines ethanol affects the worse is small engines, lawnmowers, snowblowers, rototillers, etc. when storing for more than a few days, turn the fuel off ( install a valve if there isn't one) let the engine die by running out of fuel rather than just turning it off, then drain the float bowl. don't leave fuel in the carbs to evap and you shouldn't have a problem
fwiw, you can buy premixed 2stroke ethanol free in 40:1 or 50:1 from Bailey's Logging Supply, it's called SEF (Small Engine Fuel) and made by VP Fuels with 93 octane, eeekspensive though, $35 for 6 quartsIt also makes them run lean. When Ethanol first started being blended into gas there were numerous problems with small 2-strokes sticking because of the leaner mixture. Manufacturers have since adjusted the mixture to compensate for Ethanol blend, and now you run slightly rich (on newer "adjusted" engines) if you run Ethanol-free.
Generally, it's just a good idea to stay away from Ethanol in anything except a newer model auto IMO.