I just bought a used 2018 Ford F-150 with about 60,000 miles on it, and I want to make sure I'm taking proper care of it. The previous owner didn't provide detailed service records, so I'm starting from scratch. I've looked at the manufacturer's recommended truck maintenance schedule, but I'm wondering if real-world use calls for any adjustments. For example, should I change the differential and transfer case fluids sooner since I occasionally tow a small camper? What about the transmission fluid—is a flush recommended or should I stick with a drain and fill? For other F-150 owners or those with similar trucks, what's your actual maintenance routine beyond the basic oil changes?
You're towing, so plan for a heavier wear pattern on the drivetrain. If the differential fluids haven't been changed within the last 30–40k miles, do a drain-and-fill now; repeat per your manual, often every 30–60k miles with towing. Do the same for the transfer case if 4WD or AWD. Use a synthetic gear oil that meets Ford spec and inspect the magnet on the drain plug for metal shavings—signs of wear warrant a deeper look.
On the transmission: most Ford trucks benefit from a drain-and-fill rather than a full power flush unless Ford specifically recommends a flush. With towing and heat, you might do a service every 60k miles or sooner if you notice shudder, slipping, or darker fluid. Use the OEM ATF; avoid mixing old and new fluids.
Front diff: if you have 4WD, don't ignore the front axle fluid; same interval as the rear differential if you tow regularly. Add a pre-load check of the driveshafts and U-joints; check for leaks around the seals. For the braking system, the fluid's fine if not dark; but keep an eye on coolant levels and battery.
General maintenance beyond oil changes: rotate tires, check brakes, inspect shocks/struts, cabin and engine air filters, coolant/antifreeze, serpentine belt if older. Keep a maintenance log and receipts; towing increases wear so maybe schedule more frequent inspections.
Want a personalized plan? Tell me your typical tow weight, climate, and service history (even rough). I can draft a 6- to 12-month maintenance schedule with suggested fluids, inspection points, and a shopping list of parts.