Forum Discussion

F5Pro's avatar
F5Pro
Explorer
Feb 28, 2020

Motorcraft 10W30, 5W40, Rotella or Mobil 1 for 6.7

Just curious about what oil to put into my Powerstroke. Book calls for 5W40 (full synthetic) for towing 1000 miles. Local Ford dealer uses 10W30 as standard oil change oil. There are other diesel oi...
Tow Vehicles
Groover's avatar
Groover
Explorer II
Feb 28, 2020
I always go by the book. I am not a huge fan of most dealer advice and suspect that the party covering the warrentee is more important to please. On that subject, I have never seen a factory recommendation for high mileage oil at an extra dollar or two per quart.

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