Originally Posted by CheapThrillB2
yes very important to run the right oil in it i beleive its 5-20, with the elaborate timing chain set-ups it is important to run the right oil, majority of all shops and quick lubes shove what is in their bulk into the motors (generally 5w-30)
Extremely important. I have seen some of these triton motors that will actually knock/tick severely with the wrong weight oil in them. From what I was told by a Ford engineer, the bearing clearance on them is extremely tight which is one of the main reasons 5-20 is needed.
Additionally, I have seen quite a few of these motors with timing chain issues - the guides seem to wear prematurely or the tensioner fails....but I'd say roughly 5% of the motors with this problem were actually maintained.....
look at the date on the original post