Ford F-150 Owner's Manual page 443

When to expect the OIL CHANGE REQUIRED message
Interval
7500-10000 miles
(12000-16000 km)
5000-7499 miles
(8000-11999 km)
3000-4999 miles
(4800-7999 km)
F150 (TF6) , enUSA
Scheduled Maintenance
Normal commuting with highway driving
No, or moderate, load or towing
Flat to moderately hilly roads
No extended idling
Moderate to heavy load or towing
Mountainous or off-road conditions
Extended idling
Extended hot or cold operation
Maximum load or towing
Extreme hot or cold operation
440
Vehicle use and example
Normal
Severe
Extreme