What is the Typical oil pressure of the 3.4 liter. Mine is 40 until warmed up then 15ish at idle, and 40 while driving. But I have read some posts of people getting 65ish until warmed up. So is mine too low or what?

 

the thinner your oil is the lower the pressure. Sick

 

You're OK. 40 PSI is fine. Like Sick said, if You want more pressure, You can go to a heavier / thicker oil.

 

ok cool. I live down south and its hot but I use 10w 30 high mileage formula.