Heard them promoting MotorKote on a radio talk show, you know, using
the interview format. Said the product is accepted by NASCAR
mechanics, is sold at WalMart, used for everything from motor oil
supplement, transmission additive, gun preservative (improves
accuracy), various other machines.
So I looked it up on Internet to see what reviewers were saying. Most
said only a small improvement in MPG, not much change otherwise. Some
said, yes, by golly, the engine "tic" went away in minutes. Then I
read a review by a truck driver who said he looked it up in a chemical
index of some kind and found it was only mineral oil. Didn't say
mineral oil is bad, just that it's much cheaper to buy than MotorKote.
Finally, I found the following analysis by Amsoil, which of course is
It says MotorKote and several others contain high ppm of chlorine,
which converts to something highly corrosive in combination with water
and some other minerals. So Amsoil's warrant is voided unless it
approves another additive.
How to add up the data, I'm not sure. It's at least interesting to
compare MotorKote with Dura Lube Engine Treatment Booster, Prolong
Engine Treatment, and the regular and synthetic motor oils for
slipperiness. The test uses one speed of turning metal in an
adjustable clamp, determining how much clamp can be applied before it
slows down. In this test, MotorKote does outperform the other
MotorKote does have detractors out there, for instance the TDI forum
might consider fuel additives, but nothing, never, no-how a motor oil