Did NASCAR ever officially rule on what the illegal substance was in Michael Waltrips fuel at Daytona?

Question

Did NASCAR ever officially rule on what the illegal substance was in Michael Waltrips fuel at Daytona?

Answer 1

I thought it was jet fuel... It wasn't in the tank, it was in gel form and they lined the intake runners with it, from what I understand.

Answer 2

It was a substance containing the properties of jet fuel.

Answer 3

i don't think they ever released that information for the public to know. last i heard was the only people that would ever know what was in his car would be nascar and michael waltrip racing.

Answer 4

It was Jet Fuel coating the inside of the intake manifold and carburetor.