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Wow, those AW #s are awesome on the moly, born, phos and zinc! Definitely something I will consider running after I get done with this OCI with the VR1. Blackstone says the levels are normal but those iron levels look a little high to me....Have you noticed any abnormal glitter or junk in your...

Originally Posted By: spiderbypass Any multi viscosity forty weight oils can literally apply a dual gasoline rating because they-40 weight oils are exempt from zddp and saps limitations placed on thirty weight oils. This was more meaningful with cj4 oils because ck4 oils seem to have lower zddp...

Originally Posted By: DoubleWasp The VR1 will have no problem handling a flat tappet cam. If anything, it will deliver superior performance for it. Good to know, was hoping it would be OK. I have some VR1 20w50 that I might add up to 50/50... I didn't like how incredibly thick it was pouring...

Wow, you guys are active here! Great to see such a helpful community. Originally Posted By: Snagglefoot Just curious, what does the owners manual for the original donor vehicle say? Would you value Porshe's recommendation? SF According to VW/Porsche, all of the charts pretty much show a...

I have been researching for weeks but still can't make up my mind. I really need the help of some Porsche/VW engine builders and tribologists. Lots of specs have changed in the last 2 - 3 years for oil....Very hard to keep up! I have several high performance flat tappet/solid lifter engines...