I've seen people asking about zMax additives on several message boards I frequent, so I thought I'd post the latest information I got from Lube Report. The entire article can be read HERE, but I will post some of the more interesting informmation (I've added bold for emphasis):
As I've said in the past, there is no reason to run an additive in a good quality oil; it will more than likely upset the balance of the extensive additive package that the oil manufacturer already includes. Take the money you would normally spend on oil additives and use it for oil analysis instead -- it's a much better investment, and you will know how well your oil is protecting your engine.
I knew someone who put STP in his engine while the engine was not running. The STP remained in a glob, and was too thick for the oil pump. You guessed it, blown engine. His action confirmed that he was a doofus, but it also confirmed that additives like STP are only good for Andy Granatelli.
zMax works best in the Heart of your Engine " The Combustion Chamber Environment "
If you visit the site Bob is The Oil Guy, there's current information on zMax including how they kept all their performance claims on the FTC case. You listed the initial complaint which is incorrect as to the outcome.
They also have great test data posted as well.
Also there's a Mini guru in Illinois named Sol Snyderman at Perfect Power in Libertyville Illinois. You may wan't to ask him about zMax.
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