They are also in almost all (if not all) PWCs (jet skis).
I know that was random but wanted to contribute.
Come to think of it, I think the 2002 f150 I drive has a plastic gas tank as well.
I'd like to see that plastic tank in a Ford F-150. I wish mine was.
The Ford tanks are big heavy pain in the arses.
Ethanol will destroy the internal rubber fuel lines installed on older vehicles. Often the lines will begin to collapse and cause fuel pump failure and sometimes injector failure if the residue gums up the nozzles.
Back to fuel.
I run premix in my small 2 stroke engines. It has a very long shelf life and it works. It's just good stuff.
All the air cooled small engines get avgas from the airport. 100LL. First off there's not enough lead in it to make a difference in an air cooled small engine. Second, the 100 octane is a moot point in a hot running air cooled engine in South Alabama when the temperature is often in the 90s or above. This ensures I don't get detonation or pre-ignition with the advanced timing and high cyclinder head temps on these engines.
But the most important and the real reason I use it is because it has an almost unlimited shelf life, it has no additives that will gum up the fuel system, and it has cleaning properties when used. It keeps the carb cleaner than regular fuel.
My boat has a high compression inboard outboard engine and it absolutely loves the stuff.
Just don't use it in anything with O2 sensors or cats installed.
