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The invoice indicated that this oil was used:Dealer towed the Truck back to their site and put the proper oil in it. I had only driven the truck about 5 miles.
Both of the above is the same oil. The top number is 5 quarts and the bottom number is 1 quart. I researched these numbers and they are specifically for "gasoline engines", NOT diesel.
The proper oil to be used is Motorcraft SAE 5W-30 Diesel Motor Oil: XO-5W30-QFA
This is documented on pages 428 and 429 of the owners manual.