I remember that, did it to a small block I had, I have never used Pennzoil since.
Just like the Fram filters were always junk .
Wow man thing have changed so much , Penzoil & Fram had their issues years ago ; however, nowadays Penzoil is quite possibly the best oil on the market , and in most cases it's better than others by a LARGE margin.
Any oil most can name off the top of their head and typically anything on the shelves anything Napa , Autozone , Advance Auto , Wall Mart ect ..ect... Penzoil Yellow Bottle ( PYB) Conventional oil is likely a better oil. PUP Penzoil Ultra Platinum is almost certinly a better oil , even the PP Penzoil Platinum is a superior oil I'm most cases .
As far a Fram filters goes the Fram Ultra is one of the best available today ... keeping up with the oil manufacturers & filters can prove to be very benificial.
Tons of info and up to date info on oils & filters can be found on bitog & on the synthetic oil thread here .
http://www.ramforum.com/showthread.php?p=487965
Hope to see you there on the syn oil thread !
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