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Old 11-01-2021, 01:36 PM
Radioflyer Radioflyer is offline
Join Date: Nov 2009
Location: Boston
Posts: 222

I worked on a project plane for 5 years with 10 gallons of 100LL in each tank the whole time. When the plane was returned to service, I used the fuel to do ground runs and 2 hours of flight. The fuel looked good as new and there were no issues with the fuel system or engine running. Yes, 100LL is extremely more stable than auto gas.
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Old 11-01-2021, 05:17 PM
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n82rb n82rb is offline
Join Date: Jan 2007
Location: fort myers fl
Posts: 1,129

you may dispose of it in my 68 fiberglass bodied chevy, it disposes of it very well.

bob burns
RV-4 N82RB
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Old 11-01-2021, 06:06 PM
David Z David Z is offline
Join Date: Aug 2010
Location: Thunder Bay Ontario
Posts: 886

I ran a generator on 100LL. After 10-15 gallons, it started to misfire under high load. Run a few gallons of regular car gas and it cleared right up. My theory is the lead was causing issues with the spark plug. The regular gasoline allowed the lead to burn off and clear the misfire.

Engine tolerated 100LL in small doses, but wasn't happy about it after a while. If I had 20 gallons to dispose of, I'd alternate fillups with regular gas to keep things from fowling up.
Empennage Passed Pre-close Inspection
Wings mostly done
Fuselage assembly, it's a riveting job!
Dash 8 day job is financing the RV8
Donation till September 2022
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Old 11-01-2021, 08:00 PM
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wirejock wirejock is offline
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,096
Default Race track

Second anything without a CAT.
Take it to a race track. They will fight over it. Many teams would buy 100LL and bring 5gal tanks. Race cars and motorcycles.
Larry Larson
Estes Park, CO
wirejock at yahoo dot com
Donated 12/01/2021, plus a little extra.
RV-7A #73391, N511RV reserved (3,000+ hours)
Empennage, wings, fuse, finishing kit done. Working FWF
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
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Old 11-02-2021, 10:04 AM
Skip12 Skip12 is offline
Join Date: Dec 2020
Location: Austin/Pflugerville
Posts: 4
Default Old Gas

Lawn mower, Edger, Generator, Leaf Blower, Chainsaw......
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Old 11-02-2021, 12:19 PM
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greghughespdx greghughespdx is offline
Join Date: Nov 2011
Location: Aurora, OR
Posts: 1,167

Lawn Mower. Friend's old motorcycle. 1969 Mustang convertible.

Or anything without a catalytic converter that will eat leaded fuel. 100LL is pretty darn stable and lasts a long time. I'd worry more about contamination than age when it comes to putting it into a non-airplane engine.
Greg Hughes - Van's Aircraft
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Building RV-8A since Sept 2014
Dual AFS 5600, Avidyne IFD 440, Whirlwind 74RV, Superior XP IO-360
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Aurora, OR (EAA Chapter 105)

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