AV gas for the generator

KD4UPL wrote:
What's the point of paying for / running AV gas?
If you want ethanol free then just buy ethanol free. It's readily available just about anywhere.

Ethanol free is nearly impossible to find in some parts of the country. Marina boat fuel and racing fuel is about it.

Airplane spark plugs accumulate balls of lead from 100LL avgas. The only advantage I see is if you plan to leave the generator sit unused for years.

Why not just follow the engine manufacturer’s recommendations?

Ditto. Running any engine on a higher octane fuel than what the manufacturer recommends is a waste of money.

What's the point of paying for / running AV gas?
If you want ethanol free then just buy ethanol free. It's readily available just about anywhere. I only put ethanol free in my boat and my small engines. Pure-gas.org lists over 15,000 stations selling ethanol free in the U.S. and Canada.

wopachop wrote:
A Facebook friend just posted a spot hes getting AV gas at. Runs it in his generator. Any of you old school guys have advice on slight tuning changes? Lean out the altitude screw maybe? Different plug?

I'm mostly just curious. Enjoy topics like this. Next camping trip maybe I will finally try AV gas. I've heard about people using it for offroad toys.

Unless it’s an old generator I wouldn’t run 100LL in it. “Low Lead” is still leaded. All my small engines are designed to run on unleaded gas. I found a station in town that sells clear gas (ethanol free). That’s what I use in my small engines now. It’s cheaper than avgas at my local air patch ;)

Should not require any adjustment on older generators.

The issue is the alcohol in automotive gas.. And it's not so much rich/lean (Gas-ahol is a bit "leaner" so you need to enrichen a bit) but the way gas breaks down over time.. Gas-ahol breaks down fairly fast relative to pure gasoline.

There are some other issues. too much booze in the tank and there is engine damage as well. UNLESS the engine is designed to run on boozy gas that is.