T5 Mobil synthetic lower oil pressure?
- Thread starter diesel53
- Start date
To over fill is not a good thing to do. I have switched over to Champion Blue Flame oil and it's working great. With Rotella Dino it when matched up next to some older jugs of the same they has thinned there oil out and oil pressure started to drop off and truck good noisy. Was also running Mobile Delvac 1300 Dino and it just did not hold up the same. So I made a switch I'm a Amsoil dealer but not sold on it and I get a good deal on Blue Flame since its made here in Kansas City. No noises oil pressure is steady and higher then before.
My truck now run hot idle 35 psi driving it's at 65 to 70 psi. At cold start up the truck see's 65 psi til warm.
i see better average oil pressure with syntheic than i did the regular stuff. im runnin rotella t6 though. oil pressure is a steady 57psi at 1800 and 210*. after break-in the other oil dropped pressure to 53psi at 1800 and 210*.
super diesel
<<<< Under Pressure
Your oil pressure switch is on the journal (not pre filter like the 01-02s). The pressure when hot WILL drop below this 19psi you have it set for. I would reset it for 14psi. This is the lowest I would want to deal with. Mines been down to that (14psi) with with very hot oil. The hotter it gets the lower your pressures will be because of this. The oil starts running more like water than cold oil when hot. If your worried about it, get a multi grade oil like a 5w-50 or 20w-50 (the latter is harder to get flowing in the cold though if you ever deal with this). This will help.
That's what I see running Mobil synthetic 5w 40. Cold start winter needle is partially bent on the pin at 80 psi.
