service interval reset FORD EXPEDITION EL 2017 Owners Manual

When the oil change message appears inthe information display, it is time for an oilchange. Make sure you perform the oilchange within two weeks or 500 miles(800 kilometers) of the messageappearing. Make sure you reset theIntelligent Oil-Life Monitor after each oilchange. See Oil Change Indicator Reset(page 246).
If your information display resetsprematurely or becomes inoperative, youshould perform the oil change interval atsix months or 5000 miles (8000kilometers) from your last oil change.Never exceed one year or 10000 miles(16000 kilometers) between oil changeintervals.
Your vehicle is very sophisticated and builtwith multiple, complex, performancesystems. Every manufacturer developsthese systems using differentspecifications and performance features.That is why it is important to rely upon yourdealership to properly diagnose and repairyour vehicle.
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.
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Scheduled Maintenance

At every oil change interval as indicated by the information display*
Inspect the steering linkage, ball joints, suspension, tire-rod ends, driveshaft and U-joints.
Inspect the wheels and related components for abnormal noise, wear, looseness ordrag.
* Do not exceed one year or 10000 miles (16000 kilometers) between service intervals.** Reset the Intelligent Oil-Life Monitor after engine oil and filter changes.
Other maintenance items 1
Replace engine air filter.Every 30000 miles (48000km)
Change engine coolant.2At 100000 miles (160000km)
Replace spark plugs.Every 100000 miles(160000 km)Inspect accessory drive belt(s).3
Change automatic transmission fluid.
Every 150000 miles(240000 km)
Change front axle fluid (Four-wheel drive vehicles).
Change rear axle fluid.
Change transfer case fluid (Four-wheel drive vehicles).
Replace accessory drive belt(s).
1 Perform these maintenance items within 3000 miles (4800 kilometers) of the lastengine oil and filter change. Do not exceed the designated distance for the interval.2 Initial replacement at six years or 100000 miles (160000 kilometers), then every threeyears or 50000 miles (80000 kilometers).3 After initial inspection, inspect every other oil change until replaced.
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Scheduled Maintenance