Quote:
Originally Posted by JanGeo
The ethanol seems to attack the old black hoses and zinc aluminum casting and brass in the carbs usually in the older motors. My brother was saying that when the fuel is left in motorcycle gas tanks they end up 1/3 full of water at the bottom after a few months of sitting. He said a test is to take a glass jar with gasoline in it with a pin hole in the lid and it will change to water at the bottom in a few weeks. I poured old gas out of a friends small outboard and it came out black, it still ran but looked nasty and that was just gas in the motor's built in fuel tank during the summer.
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Thanks for the info.
Except for what I mentioned, the hows of why it hurt the engines isn't regularly expressed. Repeated comments of 'it destroys engines' without seeing any whys had me doubting there was a real problem here. Fiberglass resin in the engine would destroy it, but I saw that as a problem with the fuel tank, not the engine itself.
Don't know about the boating industry, but ethanol, and even biodiesel, resistant fuel lines have required on cars long enough that if you don't have them now, it's probably a good idea to replace them anyway do to age.
Was gas that sits or sat, I add isopropanol too. IPA isn't hygroscopic like ethanol. It won't absorb moisture from the air, but will let any phase seperation from the ethanol's properties remix.
I had problems with the weed trimmer this year, but I never emptied the tank and ran the fuel out between seasons. Ethanol might make the recommended maintenance more essential, but it was recommended before ethanol for a reason.
I'd love to be able to get straight gas, but if it's between MTBE and ethanol, I'll take the alcohol. Of course modern cars need neither for clean emissions, and few carbed ones on the road don't have a large impact. Over 10% ethanol is pure political pandering.
I just don't think rhetoric and heavy emotional responses help in a discussion.
My friend swears his 2005 V6 Camry runs worse since we started getting E10. I always ask him if he has tried 89 octane like Toyota recommends for the car.