[DeTomaso] Busted Big, but Reno anyway? - cams and oil with ZDDP - LONG

[Thomas Tornblom]

Barry Seib skrev:
>  Guys
> 
> I have researched this lately and here's what I think I know:
> 
> If the oil you are buying has an API designation "SM" you should NOT use it
> in any flat tappet engine. It probably isn't real good for old style rocker
> arms and wrist pins either, but it is perfect for catalytic convertors.
> 
> API designation "SL" is NOT much better and I wouldn't use it in any flat
> tappet engine either. If either of these designations appear on the oil you
> are considering, whether it's diesel oil, synthetic oil or both, I think you
> are taking a serious risk of premature failure.

The 20l container of Mobil 1 5W-50 I have in the garage says "API 
SJ/SL/SM/CF". What does that imply?

Thomas