Marine gasoline for 2 strokes.

[Darren]

I've been trying to figure out a way to find gasoline without ethanol for chainsaws, weedwackers, etc.

I ran into this which stated this particular brand of marine gasoline could be stored for over a year. Anyone know if marine gasoline has alcohol added?

http://continuouswave.com/ubb/Forum1/HTML/014909.html

[Bearfootfarm]

Until now I've never heard of "marine gas"

I doubt it's any different that any other gas, and it mostly a sales pitch

[HermitJohn]

Aviation gas is only guarenteed non-alcohol gas I know of unless that has changed and they now put alcohol in that too.

I know boat people were having problems with fuel lines melting and such before it was a problem in small engines. They were complaining loudly. But all that happened is that there was demand for more alcohol resistant parts and slowly the complaining died down as things got replaced. Just have to get used to fact that all gasoline is going to have alcohol in it from here on out and figure out how to make that work.

[plowjockey]

If you just want to purchase motor fuel, without ethanol added, look here:

http://www.pure-gas.org/

[backwoodsman7]

Originally Posted by HermitJohn

Aviation gas is only guarenteed non-alcohol gas I know of unless that has changed and they now put alcohol in that too.

Avgas has never had alcohol, and it'll be decades, if ever, until a non-alcohol version is no longer available. The FAA moves very, very slowly on stuff like that.

What you want is called "100LL" (say "hundred low lead"). It's available at all but the smallest airports. Some have 24-hour cardlock pumps, and some have fuel trucks that are only available during business hours.

It's 100 octane; that's figured differently than car gas, but it's somewhere above premium octane. It's formulated to sit for long periods of time without going bad. Yes, the "low lead" means it has lead in it, so DON'T USE IT IN YOUR CAR or anything else with a catalytic converter. In magneto-ignition engines the spark plugs might get a little fouling from the lead if the mixture is too rich, so you might have to clean the plugs more often. All in all, it should work great in anything without a catalytic converter.

[Ray]

The only marine gas around here are the lakes and they take regular unleaded and ad the trw-30 to make it the most popular mix, and usually have two mixtures. Once mixed the oil stabilizes the gas for a couple years. All the octane does is make the gas less explosive, so it won't pre-ignite before the piston is at TDC for the sparkplug to set it off, otherwise you start getting spark knock real bad, best wishes, ray