vertC6

"13. 5W30 Joe Gibbs Driven LS30 Performance Motor Oil, synthetic = 104,487 psi The bottle says it is formulated specifically for high output GM LS engines, and that no ZDDP or additives required. This is by far, the best performing Joe Gibbs oil I’ve ever tested. It is at the very top of the OUTSTANDING wear protection category, and fell just short of the INCREDIBLE wear protection category.

zinc = 1610 ppm
phosphorus = 1496 ppm
moly = 0 ppm
calcium = 3515 ppm
TBN = 8.8

This oil contains sufficient amounts of the components required (detergent, acid neutralizer, etc) for normal change intervals in street driven vehicles. But, it has way too much zinc/phos for use in cat equipped vehicles. However, it is well suited for Race Cars, Street Hotrods and Classic cars."


I was very pleased to see these results of this oil, but what do you guys feel about using American racing headers with high flow cats with this oil?

Unreal

Still #13 on the list though, why not use one of the ones above it in the incredible catergory?

vertC6

Most of them have additives that have very mixed reviews on and I'm not comfortable experimenting, I don't know much about the oil extreme but everyone says the prolong is snake oil.