Okay What oil and Weight are you All Running
To answer the question posted, I run Amsoil HDD 5W30. Had excellent results with the Esso XD3 0W40 as well.
I run...

I've used this oil for the life of the truck and still getting awesome fuel mileage and doesn't use a drop of oil between changes. What I put in the crankcase comes back out at change time!
I've used this oil for the life of the truck and still getting awesome fuel mileage and doesn't use a drop of oil between changes. What I put in the crankcase comes back out at change time!
XD-3 is available in a Group IV synthetic as well but is 0W40 weight.
Yeah... But I don't think there is a real need for me to switch to synthetic oil. So far its been doing good on this. Good MPG numbers, good HP/TQ numbers, just good all the way around...
But thank Dr. Evil...
But thank Dr. Evil...




