Has anyone heard anything bad about Castrol oils? My mechanic freaked out when I told him thats what I was using in my 420SEL. I had always thought Castrol was one of the best, in fact my previous mechanic used it and recommended it. The new guy says that Merecedes Benz even sued Castrol because something wasn't right with their oil. Is there something I don't know? He said to use Quaker State as well. Personally I think both are great companies. I used Castrol because that is what my previous mechanic (now 1300 miles away) had used in the car since new.

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Jason Priest
1999 E430
1995 E420 - retired
1986 420SEL - retired