Originally Posted By Supercuda
A point or two is not 91 octane to 92 or 93 octane.

It's 91 octane to 91.2 or 91.3 octane. That's the "point" as in point two or point three octane.

But yes, MMT works better than petroleum distillates, much better, but not as good as TEL.


Not the case, MMT can raise octane by a full point or 2 from 91 up to 92 or 93. Not from 91 to 91.1. MMT may not be the best for your engine or catalytic converter but absolutely can raise octane by a reasonable amount.