I have a '99 Silverado Ext Cab, 5.3 ltr, 31,000 miles, Flowmaster 40. I do not have piston slap, yet!!! I have been using Mobil One since
No, Mobil 1 does not prevent piston slap. all motors get it with wear n tear.
Not all GM motors, just those prone to piston slap.
Brian
There is some debate on that from what I hear?
The skirts wear less with Mobil than with Fossil oils, and there is less chance of the barrel shape on the skirt wearing down with pure synthetics than with fossil oils.
But, it was just talk at a local GM dealership. Nothing fact like a TSB.
Refinish King
I know what we can do? We can ask Jabs?
I don't know much about "jabs" From what i've seen, that's a good thing !
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