Quote:
Originally Posted by John Sabato
Quaker State oil is the worst motor oil I have ever used... lots of sludge between oil changes. Pennzoil on the other hand, has always worked well for me... stays clean a long time. I still insist on it when I have someone else change the oil in my vehicles.
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And that's EXACTLY the opposite to what I've learned and observed. Go figure!
I wouldn't use Pennzoil in my lawnmower!