oil pressure down .. patman and co. needed
Paul
My oil pressure went down after the last oil change. My PVC system is completely stock and I've always used 10W30 in my car.
The 2nd-to-last oil change I used the small Mobil1 filter with 6qts of M1 oil. Oil pressure at idle was slightly over 40psi, and at cruise was halfway to the next higher mark.
This last time I used the same type & quantity of oil, but switched to the large filter. At idle pressure is ~30psi, and at cruise it's slightly above 40psi.
Based upon what I've read about the M1 30 weights shearing, I want to move to Amsoil or Redline 10W30. However, I haven't really concluded which is better disregarding cost. Dunno about filters though...I heard Ultraguard Gold was the best, but also that they were being discontinued.





