German Castrol, 0w/30, 4998/4845 Mi, SAAB 9-5 2.3L

[Turbodriven]

I don't know this Auto RX stuff you are adding into the oil, but I would try a run of CG without that stuff in there and then do a UOA.

 

[f1forkvr6]

I've pretty much decided to move up to an Xw/40 oil - SAAB has recently begun to recommend 40w oils for their 2.3 & 2.0 engines. I've seen articles where oil sufficient oil pressure was NOT achieved at all times using a 30w oil, and the newer oil-pump (less robust) design.

Poke around in the additives forum for info on Auto-RX ... I don't think this is my problem.