Adding Marvel Mystery oil, ATF, and 2-cycle oil to your gasoline decreases the fuel's octane rating slightly. Doesn't mean it won't help some conditions however. It also lowers the fuel's vapor pressure, which is generally a good idea for engines with carburetors. And it lubricates. One of those deals where if it works for your particular situation, why not use it. Octane creep from deposits can be effectively reduced with a huge variety of fuel cleaning additives and top engine cleaners. Half of every AutoZone, Oreily's, and Pep Boys is all this type of stuff.
|