Quote Originally Posted by MrQ5 View Post
im not against liqui-moly actually im planning to use ceratec on 15k COI (since i had i doubt now on moly additives) and MAG1 Product Details - Mag 1... i only raised my concern when i read this Oils: What motor oil should I use? Which oil is best for my Porsche or aircooled engine? even though it is for air cooled POSCHE. but the article discuss how CJ-4 affects car made prior to 2007...
Category SJ SL
Maximum cam plus lifter wear 30 20
Sludge buildup 9 7.8
Varnish rating (higher is better) 5 8.9
High temperature deposits 60 45
High temperature volatility 70 10

As one can see just going from the previous SJ to the SL rating is a significant
(Motor Oil 107 - Bob is the Oil Guy)

Please note that it makes no difference what oil you are using. The 0W-20 Mobil 1 that is SL rated meets the same criteria as that SL rated 10W-30 synthetic or mineral based Pennzoil. That SJ or in particular that SH oil some people are looking for (from their older automotive owners manual) is no where near as good as any SL oil of today. Always use the most currently available, highest rated motor oil, even in the oldest, most worn engine. You may require a thicker grade but just make sure it is SL or SM rated.

Concern: People are worried about the SM oils not having as much ZDDP as the SL and older oils. The reason ZDDP has been used for years is not because of its superior performance but rather its low cost and dual function as an antioxidant. It also has anticorrosive properties.