Page 602 of 738

When to Expect the Message Prompting You to Change Your Oil
Vehicle Use and Examplemi (km)
Minimal idle time.
Normal
7,500–10,000 mi(12,000–16,000 km)
Normal commuting with highway driving.No, or moderate, load or towing.Flat to moderately hilly roads.No extended idling.
Severe
Less than 7,500 mi(12,000 km)
Moderate to heavy load or towing.Mountainous or off-road conditions.Extended idling, 200-300 hours.Extended hot or cold operation.Maximum load or towing.Extreme hot or cold operation.Use of high sulfur diesel fuel.
Note:Use the appropriate special operating condition for maintenance information whenusing high sulfur diesel fuels, operating your vehicle off-road or in dusty conditions, such asunpaved roads.
Note:For every hour that your vehicle idles, it accumulates the equivalent of approximately25 mi (40 km).
Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Instrument Cluster Display1
Change the engine oil and filter.2
Fuel and water separator. Drain if necessary or if indicated by the instrument clusterdisplay.
Refill the diesel exhaust fluid tank.
Rotate the tires, inspect the tires for wear and measure the tread depth.4
Perform a multi-point inspection, recommended.
Inspect the air filter restriction gauge. Replace the air filter if necessary.3
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
598
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance
Page 605 of 738

When to Expect the Message Prompting You to Change Your Oil
Vehicle Use and Examplemi (km)
Normal
7,500–10,000 mi(12,000–16,000 km)
Normal commuting with highway driving.No, or moderate, load or towing.Flat to moderately hilly roads.No extended idling.
Severe
5,000–7,500 mi(8,000–12,000 km)
Moderate to heavy load or towing.Mountainous or off-road conditions.Extended idling, 200-300 hours.Extended hot or cold operation.
Extreme2,500–5,000 mi(4,000–8,000 km)Maximum load or towing.Extreme hot or cold operation.
Note:For every hour that your vehicle idles, it accumulates the equivalent of approximately25 mi (40 km).
Normal Maintenance Intervals
At Every Oil Change Interval as Indicated by the Instrument Cluster Display
Change the engine oil and filter.1
Rotate the tires, inspect tire wear and measure the tread depth.2
Inspect the wheels and related components for abnormal noise, wear, looseness ordrag.
Perform multi-point inspection - recommended.
Inspect the brake pads, shoes, rotors, drums, brake linings, hoses and the parking brake.
Inspect the engine coolant concentration, freeze-point protection, level and the hoses.
Inspect the exhaust system and heat shields.
601
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance
Page 609 of 738

Operating in Sustained Ambient Temperatures Below -9°F (-23°C) or Above 100°F (38°C)
Change the engine oil and filter as indicated by the instru-ment cluster display, and perform the services listed in thescheduled maintenance chart.
As required
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)Every 30,000 mi(48,000 km)
Operating in Dusty or Sandy Conditions (Such as Unpaved or Dusty Roads)
Rotate the tires, inspect the tires for wear and measure
tread depth.1Every 7,500 mi (12,000 km)
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
Change the engine oil and filter.2Every 7,500 mi (12,000 km),six months or 300 enginehoursInspect and lubricate the U-joints.
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), 6 months or600 engine hours
Replace the air inlet foam filter.Every 30,000 mi(48,000 km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Rotate therear wheels if unusual wear is noted.2 Reset the Oil Change Reminder after engine oil and filter changes.
605
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance
Page 610 of 738

Off-road Operation
Inspect functional holes in each leg of the twin exhausttips and the holes under the shield just inboard of the rightrear tire to make sure they are clean and clear of debris orforeign materials. Refer to the Vehicle Care chapter of yourowner’s manual for more information.
As required
Inspect the steering and suspension ball joints and tie rods.Lubricate any grease fittings.
Rotate the tires, inspect the tires for wear and measure
tread depth.1Every 7,500 mi (12,000 km),six months or 300 enginehours
Inspect the brake system pads and rotors.
Inspect the air filter restriction gauge. Replace the filter ifnecessary.
Change the engine oil and filter.2Every 7,500 mi (12,000 km)or 300 engine hours
Replace the engine-mounted and frame-mounted fuelfilters.Every 15,000 mi(24,000 km), six months or600 engine hours
Replace the air inlet foam filter.Every 30,000 mi(48,000 km)Replace the wheel bearing grease and grease seals if usingnon-sealed bearings. (Two-wheel drive vehicles).
Change the rear axle fluid (Dana rear axles only - some F-350s; all F-450s and F-550s).Every 50,000 mi(80,000 km)
Change the transfer case fluid. (Four-wheel drive vehicles)
Inspect the front axle fluid. (Four-wheel drive vehicles)
1 Rotate the front wheels on vehicles with dual rear wheels when specified. Rotate therear wheels if unusual wear is noted.2 Reset the Oil Change Reminder after engine oil and filter changes.
606
2023 Super Duty (TFH) Canada/United States of America, enUSA, Edition date: 202211, DOMScheduled Maintenance