Thanks for sharing the information about topsider. However, I have thought about that alternative and read the posts in the archive. Somebody says that he likes the feeling that hot oil drips on the hands. I kind of have similar feeling. By the way, The chassis of C280 is quite high that I don't need to jack up the car for oil change.

Anyway, back to the topic. Does any one know the size of the engine oil drain plug on a 94 C280? The one I saw in the store was a M14-1.5 (not M14-15). But I think it should be a 13 mm plug......

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Harry (94 C280)