Push hard and live
Join Date: Apr 2007
Location: Carson City, NV
A few points about aviation fuel.
It has a LOT of lead in it. The "LL" indication is in reference to the fuel it replaced, which was 100/130 octane. 100LL still has roughly 4 times the lead of aviation fuel 87 octane, which is increasingly hard to find.
To obtain the 100 octane rating with reduced lead levels, there are a lot of interesting chemicals that had to be added. My Mooney gas tank, which is created by spreading sealant around inside the wing, would last a long time between leaks with the original 100/130. With 100LL the sealant begins to break down and need repairing or a complete replacement typically about every 7 - 10 years. I'm not sure what all the chemicals are, but they may be worse than ethanol.
Aviation fuel has a lower vapor pressure than car gas. Among other things, this is to reduce vapor lock when flying at higher altitudes. It also makes aviation fuel harder to start than car gas.
It has a blue dye in it that WILL stain paint surfaces. If you act reasonably quickly, you can clean it off with rubbing alcohol, but even then the blue dye will eventually stain whatever it gets splashed onto.
Carson City, NV
59 102 Touring (first Alfa $500 running)
65 Sprint GT (2nd Alfa, $500 daily driver)
102 Sprint (never did anything with it, but wish I had)
74 Berlina (first new car - now certainly rusted into oblivion)
61 Giulietta Spider G-Prod Race Car (where is it now?)
84 Spider Veloce (rarely drove it, so sold it)
86 Quadrifoglio (Dull car - no more 115s for me)
1971 Montreal "The Full Monty". Fair winds and following seas
59 102 Touring Roadster - restoration complete, enough Alfa for any rational man. Or irrational, for that matter
Two 1946 Stampe SV4C (c/n 294 "Rocinante" - wife's favorite airplane. RIP), and c/n 235 "La Bon Temps Femme" (gone to a new home, but never forgotten)
Zlin 50LA (+9 -6 gees, titanium spar, 1200 lbs, 260HP rumored to now be in Brazil)
1946 Luscombe 8A
Starduster Too (recently spotted at the Nevada City, CA airport - over 20 years and an entire continent separating it from our stewardship in Binghamton, NY)
1955 Cessna 170B (wife taught me to fly tailwheel in this)
64 Mooney M20E ("Rambo". My faithful steed for over 30 years) Nearly 50 years old, and just returned from a trip to Argentina in him
Newest in the fleet
1967 Piper Super Cub on Wipline amphibious floats (a true "all terrain vehicle")
2010 Triumph Thunderbird
You can snap roll an Alfa only one time...
Last edited by DPeterson3; 04-21-2017 at 12:22 PM.