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Old September 15th, 2007, 09:32 PM   #14
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Originally Posted by CheapThrillB2 View Post
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)
Originally Posted by chris1044 View Post
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.....

Edit: look at the date on the original post

then why does my owners book for my 97 say use 5-30
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