Gasoline Shelf Life

[jetmechmarty]

You can prevent rust in an empty tank with fogging oil.

[Gmac]

For Long Term Storage

I use 93 octane gas and a stabilizer, either Stabil or SeaFoam and in many cases both along with two stroke additives.

I do not use ethanol added fuel in any of my engines, period.

I can start any of my saws, bikes and small engine implements any time I need them by filling the tank after I use it to prevent any chance of condensation internally. I rotate the fuel out after a year if I don't get a chance to go out in the Jon boat or use it in my saws.

I've seen the damage ethanol does to small engine fuel systems and I'll never use it in anything I want to keep long term. We have gas stations that sell non-ethanol fuel, Shell or Sunoco, and it is also available at several others as a stand alone. I haven't used AV gas due to expense and aggravation of acquiring it.

[Prothec]

Apparently some 100+ octane avgas uses TEL as the octane booster. So, it could be leaded fuel and bad for catalytic converters, o2 sensors, your health and who knows what else. If going the avgas route, it's worth verifying the fuel you're getting is unleaded, but then you might be inadvertently finding yourself back in the ethanol content arena again.

Edit: Actually, according to a table on wikipedia, they don't identify ethanol in 100+ octane avgas.

http://en.wikipedia.org/wiki/Avgas

[jetmechmarty]

There is no ethanol in aviation fuel. Not ever. What they call low lead has a lot of lead (TEL). That isn't all that great in an XS1100 either. (lead deposits) Mostly it's a health hazard.

[Buckmaster79]

Lead

Well if they can fly there planes and look down on me riding my bike
then I can do the same back. I just use 30% I put it in my tank. not on my hands.

[jetmechmarty]

Yep. Aviation fuel is the good stuff. It has to be. If you're mixing low lead into your tank, the lead will significantly raise the octane of the auto fuel in your tank, not that it matters to an XS1100.

Burning corn is good for the Iowa economy, right?