[buick8791]

Hi, and thank you for your answer!

But, what is your recommendation for the viscosity for the plus temperatures above?

And, is STP zinc oil additive better than CompCams additive stuff, which is actually intended for cam running in? I mean the oil additives used for daily driving?

And in addition, how about Valvoline vr1 10w-60 oil, please see my question about the viscosity above?

And which synthetic diesel oil you will recommend( I understood, that it would be anyway synthetic)? Brand and viscosity?

Thanks!