The short answer
Both 2026 manuals say to change the oil when the Intelligent Oil-Life Monitor message appears, within two weeks or 500 miles, at intervals of up to one year or 10,000 miles. Cabin air filters are every 20,000 miles, engine air filters every 30,000 miles and spark plugs every 100,000 miles (60,000 in severe service).
Automatic transmission fluid is at 150,000 miles on both. The Expedition also lists front axle and transfer case fluid (4WD) and rear axle fluid at 150,000 miles, and transfer case fluid at 60,000 miles in severe service, which covers frequent towing.
The schedule, from the manual
| Item | Explorer | Expedition |
|---|---|---|
| Oil and filter | Monitor; up to 1 yr / 10,000 mi | Monitor; up to 1 yr / 10,000 mi |
| Cabin / engine air filter | 20,000 / 30,000 mi | 20,000 / 30,000 mi |
| Spark plugs | 100,000 mi (60,000 severe) | 100,000 mi (60,000 severe) |
| Accessory drive belts | Inspect 100,000; replace 150,000 mi if not replaced in the last 100,000 | Inspect 100,000; replace 150,000 mi |
| Automatic transmission fluid | 150,000 mi | 150,000 mi |
| Axles and transfer case | Not listed in the mileage table | Front axle (4WD), rear axle, transfer case (4WD): 150,000 mi; transfer case 60,000 mi in severe service |
| Engine coolant | 10 yrs / 200,000 mi, then 5 yrs / 100,000 (with motor electronics coolant where equipped) | 10 yrs / 200,000 mi, then 5 yrs / 100,000 |
| Brake fluid | Every 3 years | Every 3 years |
Towing with an Expedition
Ford counts towing as severe driving. On an Expedition that tows a camper or boat, the severe-service column moves transfer case fluid to every 60,000 miles and spark plugs to every 60,000 miles. Ford also says axle and transfer case fluid should be checked if the unit has been submerged, such as at a boat launch.
What Ford counts as severe
Ford's manuals count short trips of less than 5–10 miles, temperatures well below or above average, dusty conditions, idling more than recommended and driving with a heavy load or towing as severe driving. In a Barron County winter, the cold-temperature and short-trip items describe a lot of vehicles, so follow the severe-service lines in the table if they fit how you drive.
Booking it in Barron
Swant Graber Ford, 1697 E Division Ave, Barron, 715-537-9500. Service hours: Monday–Friday, 8:00 a.m.–5:00 p.m. (no Saturday service). Service loaners are available; ask the service department when you book. You don't have to use a dealer to keep your warranty; keep receipts wherever the work is done.
Questions
How often should I change the oil in a 2026 Ford Explorer?
When the Intelligent Oil-Life Monitor says, within two weeks or 500 miles; Ford says up to one year or 10,000 miles.
When does an Expedition need transfer case fluid?
At 150,000 miles normally, or every 60,000 miles in severe service such as frequent towing, per the 2026 Expedition manual.
Next steps at Swant Graber
Swant Graber Motors (Chevrolet, Ram, Dodge): 1690 E Division Ave, Barron, WI 54812, 715-537-5657. Swant Graber Ford: 1697 E Division Ave, 715-537-9500. Search new or used inventory, or see shop near you for model-by-model answers.
