I've always been impressed with syn oils of 0W. I remember Castrol coming out with it first about 5 years ago (I think). Impressed as I may be, I'm quite loathe to try it out especially in a MB engine. I wouldn't mind it if it was a Japanese car. It could be pure prejudice as I always think of MB engines as being hardy and thus would need more than 0W.

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... Kerry

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