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Discussion Starter · #1 ·
... how long does the coating last, usually?

I think it'll wear off quickly, only remaining in the low spots, but I'd like to know for sure.

On a street motor, are coated skirts worth the extra cost (considering reliability/longevity and dry running properties )?
 

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I had a set of Mahle pistons...ran them about 500 passes until it blew. The coating is still there for the most part.
 

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According to Federal Mogul which coats there pistons, the coating wont wear or flake off if the clearance of the pistons to cylinders is correct.
 
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