I imagine they took the lead out and put alcohol in it now.
No not at all.
Airplane guys don’t put up with that sh!t.
When you’re flying it’s gotta work...
http://en.wikipedia.org/wiki/100LL#100LL_.28blue.29
That 100LL stands for “Lots o lead.” (^;
I tried running lawn equipment on 100LL to get around the alcohol/MTBE problem and the deposits got bad enough in the 4 strokes that the valves quit sealing. Not to mention the increase in octane is counterproductive on low compression engines.