Quote:
Originally Posted by dmbluebeetle
I use Castrol Syntec, but the dealer said the sludge looked like a Pennzoil product from the type of sludge buildup....possibly a 10w30 regular motor oil.
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One of this forums sponsors is Pennzoil with a
"Feel The Clean" ad at the top of this page

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I thought engine flushes were b-s and a waste of money, but a couple of mechanics I know flush their own engines on their daily drivers. I wonder if you can do that on a turbo?
Cheers.