ScottG wrote:
In my opinion having any amount of ethanol in gasoline makes it "bad".
It's lower in energy and hell on parts. It also doesn't store well and goes bad far faster than pure gas.
I don't like it, but for the dollar plus more they charge around here, I use it sparingly.
Ethanol fuel won't magically "ruin" anything, except in old/older engines it'll attack the rubber. And the other stuff Scott mentioned. It's "bad" in my book but it's not pure evil that some make it out to be.
I have probably 25 different engines around the house and they all get ethanol gas some or all of the time. Several engines in the 20-40 year old category.
However being prudent about long term storage is what needs to be done. On expensive things I try to get a tank of non e gas through them before off season storage. Like my snow machines and boat. And the residual fuel gets treated and run for a bit to get it through the fuel injection system.
Anything with a carb I try to do the same thing but then run the engine out of gas and or drain the carbs.
This has worked without fail for many years.
On a separate note you can smell the difference. Just like race gas smells different than regular pump gas both going in and coming out!
Always fun to mix a little left over old race gas with the yard equipment gas. Smells like your racing something rather than cutting the lawn!
Reminds me, I got about 10 engines to "Winterize" here soon.