Quote:
Originally Posted by Artan
Did anybody ever in his life saw a test with two same engines, one changing the oil and the other no?
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How do you feel about
one engine, changing the oil at a shorter interval and then at a longer interval? With oil analysis done after each of those changes?
That's what I have done in my car. I ran one fill of oil (Mobil 1) for 6,000 miles and had it analyzed when it came out. There were small amounts of wear metals in it; the conclusion was "the engine is a bit tired". I then ran one fill (more Mobil 1) for 12,000 miles. (Sheer stupidity and laziness on my part!!) The analysis on that came back with very high levels of wear metals, on the order of 10x what they had been on the previous fill.
My conclusion: Changing your oil does, in fact, matter. I will never go 12,000 miles between changes again.
-soD