02-04-2002, 09:28 AM
I bought a new 300ex in june....broke it in the way I was told by the dealership, and have had all the maintenance done (of course dealership doesnt see the problem). I was told me the dealership to run common 10-40 motor oil. Doing this it, it always seemed to burn oil (blue smoke) when hot. Even if it was 80 degrees or 40 degrees. Starting run 20-50....and it hasnt smoked since. My friend also bought a 300ex the same day and has the exact same problem. 20-50 seems a little thick for the cold. Any ideas what the problem is?? Live in MA if that helps at all, its also completely stock. Anyone have this issue???