How long does it take for 100LL to turn to varnish?

[joliet]

Lol, you got JET-A dude

 

[DaveC]

Exactly, give it away to the racing community or someone's old car. I used to use 100LL for my jetski racing all the time. The hangar guys were happy to give it away. They would pay to dispose of it. I would come by once a week with a 15 gallon tank of free gas.

I used to trade old 100LL to my friend to run in his freestyle ski. In exchange I got some nice premix oil for my Superjet.