I did my first at 2200 miles. I would freshen it up before your trip. Have a great time!

 

How many miles a year do you drive? How many years will it take you to drive 150,000 miles? Now ask yourself if you'll keep the truck that long. If yes, then change the oil. If no, then your wasting your money, my money by driving the demand up for oil.

In reality I'll be changing mine at 5,000 miles