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Originally Posted by Bob In Ct
Once a year I change my oil ( 5W-30 Mobil1). A few weeks ago I collected 8 + quarts out of my Windsor after 1,700 miles of driving (1 year). I sent a sample off to Blackstone Labs to see what they thought of it. Below are their findings. Any thoughts? |
I think it looked fine, from my limited knowledge. From looking at several
oil analysis's, it appeared to me that the results from Blackstone labs may underestimate the
zinc/phos - anti-wear additives as compared to competing labs results for the same
oil.
I used to think that all mobil 1's were good for "older" style engines, but now, the 15w-50, and the motor cycle 10w-40, 20w-50 have alot of
zinc - anti-wear additives, as does the 5w-40 turbo diesel oils. They no longer make the 0w-30 racing oil that had a lot of
zinc. The standard 5w-30, 10w-30, 0w-40 I donlt think has the anti-wear additives.