Originally Posted by IndyFan
Originally Posted by JLTD
Interesting that M1 ran 5w-30 when Ford is still recommending 5w-20 for the 5.0.
Does Ford recommend 5w30 for severe service in that engine?
Are you implying a thicker oil (5W-30) offers more protection than a thinner oil (5W-20)? Banish him!
Originally Posted by JLTD
Interesting that M1 ran 5w-30 when Ford is still recommending 5w-20 for the 5.0.
Does Ford recommend 5w30 for severe service in that engine?
Are you implying a thicker oil (5W-30) offers more protection than a thinner oil (5W-20)? Banish him!