Quote:
Originally Posted by Marc Wulf
Was going to post a question about oil pressure myself. Recently got a little brave.351w running straight 30w 100 mph 4500 rpm oil pressure 45. 125 mph oil pressure dropped to 40 backed off and it came back up. Any opinions or suggestions greatly appreciated. |
Personally, I'd dump the 30w oil and refill it with a multigrade like 10w50.
The oil gets thinner as oil temp gets higher.
You could also be sucking the sump down if the oil is still up in the top of the motor, not draining well.
Sounds like you need a 5 speed, what diff gears do you run?