Quick Oil question, NOT ABOUT BRAND...

[Phyber0ptik]

Hey guys and gals,

I have got a quick question, especially for those of you who live in the warmer climates. I have been running German Castrol 0w30 in my 4.4 since March, which was just after I had my crankcase breather hoses freeze up on me. Great oil for the cold, but if I didn't know any better, in the hot weather we have been having up here lately (30 - 35 C) the oil might just be getting too thin after the big v8 gets up to tempurature. After she gets warm, I get a crazy valve tick, and the oil on the dip stick is really runny. (I actually get the same symptoms on my e46, which I'm looking to rectify as well, if I can use the same summer weight as the e53, the better.) I'm looking for some viscosity suggestions. I think I will switch to the 0w40 German Castrol for the winter months, but I would like to know what you guys down in the hot southern states run during the summer time. The cold weight (0 or 5 w) is a moot point. It's the hot (or up to temp) weight I'm looking for. Would a 40 be enough or should I pop up to a 50? What do you guys think?

-J