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Originally Posted by chwhale
I'm no expert on oil. I've heard that synthetic oil's seem to last longer and may be better for cars. Is anyone putting synthetic oil in their 300? If so, what kind do you recommend?  How early can you put it in a brand new car? Thanks for the help! |
im using castrol syntec at required grade. and i changed it at 300 miles and at 1ooo miles, now i will change every 3k to 4k with filter. i am VERY satisfied with syntec oil. BUT, i do know that mobile one is excellent.