'just been advised by my OPC that they refill the engine with Mobil 10-60 on older (ie pre-water cooled) 911's now. Well I'll be glad to move up from Mobil One 0-40 as it is so thin and leak-prone but 10-60 feels like one hell of a jump up the viscosity scale. Does anybody have any experience of this oil or better still, sight of a recent Porsche Technical Bulletin on the subject please?
10-60 of any make certainly isn't listed on the March 2009 bulletin I have seen.
10-60 of any make certainly isn't listed on the March 2009 bulletin I have seen.