Octane grade for towing

Originally posted by lostagain Yes, avgas still has high octane and lead.  Think of it as a crop duster spraying bits of lead all over us as they pass by.  Moral of the story, try not to live in the flight paths of a general aviation airport.

One other thing. Engines that need lead, don't need a lot of lead. If you threw in a tankful of 100LL, you could probably go the next 5 tanks with conventional no-lead high octane. The lead will stay on the valves for quite a long time. No easy answer for the ethanol though.