I have 120 gal of airplane fuel but I hear it will ruin o2 sensors and Cat, is this true? Thanks

 

100LL=100 "low lead". I think its like 2ml or tetraethyl lead per gallon? It should be blue. They call it "low" lead because its got about half as much lead content as 100 avgas aka the green stuff. Yes its bad don't run it if you have O2's or a cat it will clog your cat over time, and ruin the O2s.

 

thanks ,yeah thats what I was afraid of/