Quote:
Originally Posted by Pete'sMH
EVERYthing I've read and heard - and my Ford dealer service writer - says to use 5w20 oil in the E450 6.8 V10. But my 2017 owners manual AND the oil filler cap under the hood specify 5w30. I told the service writer and he said to follow the manual but he clearly didn't believe me! So I guess I'll use 5w30 Mobil 1 at my first oil change. Which probably won't be until about 5000 miles when we get back from a 4000mile trip west.
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Our '16 Ford manual and oil filler cap also says 5-30. I buy the five quart jug of Mobil 1 at WalMart along with a single quart for the 6 qt capacity.
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