Quote:
Originally Posted by Flavor 987S
At my fall oil change, with Mobil 5W50 my copper was at 7 and my Zinc and Phos. were at 1,669 and 1,196 respectively. Our Alum and iron number are similar. About 52,000 miles on the motor and 6,700 miles on that oil.
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Thanks, good data. Looks like I'm being short changed on Zn. Your Zn level is double mine and were using the same brand/grade of oil. Mobil 1 gets the big thumbs down from me. I dont think that variability is acceptable at $20/L. Pleased I changed brand but need more data to know if its the right choice.