Quote:
Originally Posted by ATL BRZ
Most "octane boosters", including the Lucas Oil stuff, contain a bunch of kerosene and a little bit of MMT (Methylcyclopentadienyl Manganese Tricarbonyl) to raise the octane, which is bad news for any car with a catalytic converter. During combustion, the manganese is liberated from the compound. This manganese vapor is then deposited on your spark plugs and in the fine mesh structure of your catalytic converters. The deposits in the cats can significantly obstruct exhaust flow and impede the ability of the cat to do its job with regards to NOx emissions.
MMT will not make your octane nearly as high as the feel of it in your engine would seem to lead you to believe. This is because MMT makes your fuel denser and burn slightly longer giving you additional torque than simply higher octane couldn't achieve. This process also can have the unfortunate result of contributing to gunk build up in the injectors and valves, especially if used in excess of .8 oz per gallon.
Torco Accelerator is supposed to be the real deal, but it's more expensive. |
I think I'm gonna buy a case of quarts.. I'll do a 104 tune next time i go to the dyno. Track days i'll just dump 8 or 16 oz into the tank when i fill up with 93 to bump the octane for good measure... a heck of a lot cheaper than buying 100 octane at the track.