Quote:
Originally Posted by Spooler
I use them for my truck, but it is a Cummins 5.9. My car I only use Factory Nissan filters. Same for the Vette, only A/C Delco filters.
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One guy on the Power Wagon forum was using them. Said that the oil pressure started to drop off over a period of time. Said it went from 65 psi down to 30 at an idle. At 31 psi, is where it sets a CEL. The guy spent a bunch of money tracking it down. Finally e-mailed Amsoil, and this was their reply. Changed the oil filter and the pressure jumped right back up.