2015 Ford F450 Super Duty Crew Cab Owner Manual Printing 2 - Page 443

Scheduled Maintenance Ford Motor Company has recommended maintenance intervals for various parts and component systems based upon engineering testing. Ford Motor Company relies upon this testing to determine the most appropriate mileage for replacement of oils and fluids to protect your vehicle at the lowest overall cost to you and recommends against maintenance schedules that deviate from the scheduled maintenance information. We strongly recommend the use of only genuine Ford, Motorcraft or Ford-authorized re-manufactured replacement parts engineered for your vehicle. Additives and Chemicals This owner's manual and the Ford Workshop Manual list the recommended additives and chemicals for your vehicle. We do not recommend using chemicals or additives not approved by us as part of your vehicle's normal maintenance. Please consult your warranty information. Oils, Fluids and Flushing In many cases, fluid discoloration is a normal operating characteristic and, by itself, does not necessarily indicate a concern or that the fluid needs to be changed. However, a qualified expert, such as the factory-trained technicians at your dealership, should inspect discolored fluids that also show signs of overheating or foreign material contamination immediately. Make sure to change your vehicle's oils and fluids at the specified intervals or in conjunction with a repair. Flushing is a viable way to change fluid for many vehicle sub-systems during scheduled maintenance. It is critical that systems are flushed only with new fluid that is the same as that required to fill and operate the system or using a Ford-approved flushing chemical. Owner Checks and Services Make sure you perform the following basic maintenance checks and inspections every month 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. 440 Super Duty (), enUSA