Quote:
Originally posted by moedip
Just a thought - could it be piston slap? I had a F#$D with a V6 that had piston slap (just out of warranty of course) - sounded like a tappet tapping - ran it another 60K miles before scrapping it. If it is piston slap - thicker motor oil will make it less noticable.
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This had come to mind thinking of worse scenarios. I run Delo 400 which is a good diesel oil. I could try good ol' STP if that's still around. I remember using it years ago to quiet the lifters in high mileage gas engines and it worked good.