[KittenClaws]

100LL is definitely illegal for use in anything with a catalytic converter, but I assume it’s OK for engines without.
None of my OPE, including my Polaris ATV has a converter.

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So this is not an airline fuel? I thought you were joking!

I think most cars built after 2000 have catalytic converters because it was just cheaper to put them in all rather than cater to the states that required them.

[nascarnation]

Yes 100LL is for piston engined aircraft.
100 octane low lead.

http://www.100ll.com/

Actually almost all cars built since the late 70s/early 80s have cats.