cerma stm3 did wonders for my ls1 commodore. in just 10 minutes from pouring a bottle in a warmed up motor it turned off the red oil light on dash, turned off the check engine light ( code for low oil pressure ) and the ticking/knock noise in motor disappeared. i will use this product for all my cars in the future.

This stuff actually works, used it on my 2005 Honda Civic coupe after replacing the spark plugs & radiator & it made such a difference I was shocked it actually worked. This Cerma product actually works & does everything it says it does. That's why it's not carried at any auto parts store because it's not trash & really works.

mark you notice the engine is running cooler? notice the engine fans hardly turn on and when it does doesnt run for very long like it used too?

Are s54 engines are noisy. That's for sure. For all the reasons that you stated.

Soooo, what does it do? I heard they have micro polishing compounds, and ruin the engine...