Will adding it to the gas of a modern car kill the cats or the O2 sensors.
I use to use it on many things and I know several old retired mechanics that swore by the stuff as a fuel additive.
What say all of you. I may actually pull out the can I have someplace and see if there is a number to call and ask them.
use it..
It's naptha and mineral spirits, shouldn't harm either the cats or the O2 sensors.
It won't really do much of anything, either...
You don't believe in the mystical powers of this magic automotive elixir? 
I treat MMO like Frank's Hot Sauce.
I only wish auto parts stores carried Franks Hot Sauce, shopping would get much easier.
It might smell like peppermint schnapps, but it doesn't taste anything like it.
Us Rotards run it quite frequently with little to no adverse effects to our o2 sensors
OBTW
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