At the risk of starting a fire storm, I will report my findings after switching over to Amsoil Zrod 20W-50:
- Oil Pressure is lower than with conventional oil (before I had a dino oil mix of 20w-50 and 10w-40 in there plus zinc additive). Once fully warmed up, I'm only getting 35-40psi at 3,000 RPM where I used to get 50psi. Idle is around 15psi hot. I have a 60 PSI pump. This is on 45-50* temp days.
- I'm getting oil dripping from both my rear main seal (I had a slight leak before, it's a bit more now) plus some drips from the front of the oil pan. Nothing horrible, but clearly this stuff is slippery and finds it's way through little spaces.
Now, this might all be side effects of a good flowing oil. Maybe I'll live with them for superior oiling. Not sure. But wanted to post back.
__________________
Adam
__________________
1964 LeGTO
469, M21, 3.42
__________________
Sold:
1968 Pontiac LeMans Convertible
See it go HERE
|