Good Sam Club Open Roads Forum: Tech Issues: AV gas for the generator
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 > AV gas for the generator

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wopachop

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Posted: 10/03/20 09:58pm Link  |  Quote  |  Print  |  Notify Moderator

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.

wa8yxm

Davison Michigan (East of Flint)

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Posted: 10/04/20 04:44am Link  |  Quote  |  Print  |  Notify Moderator

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.


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richclover

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Posted: 10/04/20 06:30am Link  |  Quote  |  Print  |  Notify Moderator

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 [emoticon]


Rich
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KD4UPL

Swoope, VA

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Posted: 10/04/20 07:07am Link  |  Quote  |  Print  |  Notify Moderator

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.

prichardson

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Posted: 10/04/20 07:37am Link  |  Quote  |  Print  |  Notify Moderator

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

Lwiddis

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Posted: 10/04/20 08:00am Link  |  Quote  |  Print  |  Notify Moderator

Why not just follow the engine manufacturer’s recommendations?


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hypoxia

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Posted: 10/04/20 08:25am Link  |  Quote  |  Print  |  Notify Moderator

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.


Jim

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EV2

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Posted: 10/04/20 09:20am Link  |  Quote  |  Print  |  Notify Moderator

Without recommendation, the best quality of a gas can be proven to be a higher level of refinement. Compare two clear jars with a pint of auto fuel vs a pint of 100LL after evaporation. The LL jar will be almost clear and the auto fuel will show considerable varnish.

EV2

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Posted: 10/04/20 09:25am Link  |  Quote  |  Print  |  Notify Moderator

hypoxia wrote:

The only advantage I see is if you plan to leave the generator sit unused for years.


On point...

Chum lee

Albuquerque, NM

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Posted: 10/04/20 03:31pm Link  |  Quote  |  Print  |  Notify Moderator

I'm a private pilot. Right now, the average price for 100 octane low lead AVGAS is $5.17/gal in the SW USA. IMO, this fuel will work fine in your generator, but, . . . why would you consider using it when 87 octane unleaded fuel (the correct fuel for your generator) is readily available in SO CAL for under $3.00 a gallon?

Chum lee

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