Like said above, it may depend on the motor
Last year I bought a new propane
weed eater due to the new fuel clogging up the carb even though I ran it dry at the end of the season. I've had a few small motors recently that have acted differently to the 10% ethanal. These are my observations:
The old weedeater would plug
up just running the 10% E fuel. I had to clean the carb each time I used it.
A (4 stroke) Honda
9.0 OB would also plug
up just running the 10% E fuel. The old fuel, it ran great for 10 years.
A Volva Penta
OB would plug up just running the 10% E fuel. The old fuel, it ran great for 20 years. I would run it dry at the end of season.
The (4 stroke) Yamaha generator
I have to run dry or it fouls up. I could leave the 0% E fuel in all winter w/o a problem.
An old Evinrude
5 hp I have to run dry or the oil/gas mix dries up leaving a sticky goo in the carb. So far the 10% E fuel hasn't been a problem.
When I take a part these carb's, what I'm finding is a white crusty deposit in the carb jet after running the 10% E fuels. The Honda
was so bad that I carried two extra jets and would change them out when the motor
started running bad and then cleaned them out when I found time.
In the old days it seemed the fuel companies would take pride in who had the best fuel. Now it seems they see how cheap
they can make it and stay within the standards.
Recently I've been looking for a propane
or diesel generator
. I'd like to be done with gasoline on boats.