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What is it exactly and is it bad? I have piston slap only when I have a cold start up then it goes away after the engine warms up. Just wondering if there is need for any concern?
Yea, mine does the same thing at start up! Seems to be very common!
Mine's not bad, but irritating nonetheless! Come to think of it...started when I changed over to Mobil1 at about 26k miles.