mileage FORD SUPER DUTY 2015 3.G User Guide

Ford Motor Company has recommendedmaintenance intervals for various partsand component systems based uponengineering testing. Ford Motor Companyrelies upon this testing to determine themost appropriate mileage for replacementof oils and fluids to protect your vehicle atthe lowest overall cost to you andrecommends against maintenanceschedules that deviate from the scheduledmaintenance information.
We strongly recommend the use of onlygenuine Ford, Motorcraft orFord-authorized re-manufacturedreplacement parts engineered for yourvehicle.
Additives and Chemicals
This owner's manual and the FordWorkshop Manual list the recommendedadditives and chemicals for your vehicle.We do not recommend using chemicals oradditives not approved by us as part ofyour vehicle’s normal maintenance. Pleaseconsult your warranty information.
Oils, Fluids and Flushing
In many cases, fluid discoloration is anormal operating characteristic and, byitself, does not necessarily indicate aconcern or that the fluid needs to bechanged. However, a qualified expert, suchas the factory-trained technicians at yourdealership, should inspect discolored fluidsthat also show signs of overheating orforeign material contaminationimmediately.
Make sure to change your vehicle’s oils andfluids at the specified intervals or inconjunction with a repair. Flushing is aviable way to change fluid for many vehiclesub-systems during scheduledmaintenance. It is critical that systems areflushed only with new fluid that is the sameas that required to fill and operate thesystem or using a Ford-approved flushingchemical.
Owner Checks and Services
Make sure you perform the following basicmaintenance checks and inspections everymonth or at six-month intervals.
Check every month
Engine oil level.
Function of all interior and exterior lights.
Tires (including spare) for wear and proper pressure.
Windshield washer fluid level.
Check every six months
Battery connections. Clean if necessary.
Body and door drain holes for obstructions. Clean if necessary.
Cooling system fluid level and coolant strength.
Door weatherstrips for wear. Lubricate if necessary.
441Super Duty (), enUSAScheduled Maintenance

Ford specification WSL-M2C192-A, partnumber F1TZ-19580-B, or equivalent. Addfriction modifier XL-3 (EST-M2C118-A) orequivalent for complete refill ofTraction-Lok rear axles. See Capacitiesand Specifications (page 301).
Additional Axle Maintenance for F-450and F-550
Change rear axle fluid every 100000 miles(160000 kilometers) under normal drivingconditions on all commercial applications.When operating your vehicle at or nearmaximum gross vehicle weights, changethe rear axle fluid every 50000 miles(80000 kilometers). In addition, followthis 50000-mile (80000-kilometer)schedule when operating your vehicleunder the special operating conditions,where noted.
California Fuel Filter Replacement
If you register your vehicle in California, theCalifornia Air Resources Board hasdetermined that the failure to perform thismaintenance item does not nullify theemission warranty or limit recall liabilitybefore the completion of your vehicle'suseful life. Ford Motor Company, however,urges you to have all recommendedmaintenance services performed at thespecified intervals and to record all vehicleservice.
Hot Climate Oil Change Intervals
Vehicles operating in the Middle East,North Africa, Sub-Saharan Africa orlocations with similar climates using anAmerican Petroleum Institute (API)Certified for Gasoline Engines (Certificationmark) oil of SM or SN quality, the normaloil change interval is 3000 miles (5000kilometers).
If the available API SM or SN oils are notavailable, then the oil change interval is1800 miles (3000 kilometers).
Engine Air Filter and Cabin Air FilterReplacement
The life of the engine air filter and cabin airfilter is dependent on exposure to dustyand dirty conditions. Vehicles operated inthese conditions require frequentinspection and replacement of the engineair filter and cabin air filter.
Diesel Particulate Filter
The filter may need to be removed for ashcleaning at approximately 120000 miles(192000 kilometers) or greater (actualmileage can vary greatly depending uponengine and vehicle operating conditions)and replaced with a new orre-manufactured (ash cleaned) part. Thefilter may need to be replaced atapproximately 250000 miles (400000kilometers) depending upon engine andvehicle operating conditions. In both cases,the engine control system sets a servicelight (wrench icon) to inform you to bringyour vehicle to the dealer for service. Ifthere are any issues with the oxidationcatalyst or particulate filter system, aservice light (wrench or engine icon) setsby the engine control system to inform youto bring your vehicle into a dealer forservice.
448Super Duty (), enUSAScheduled Maintenance