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castrol 0w-30
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  1. E46 General
    Got my 3rd oil report in an email today. This one is Castrol Syntec 0w-30 (GC) that is 5500 miles oil. I used this interval to provide some semblance of a comparison to my previous sample of M1 at this interval. leftmost column is GC (5500 miles). 3rd and 4th are M1 0w-40 (5400 and 8100...
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