2018 LINCOLN MKZ HYBRID service interval

AnswerQuestion
In order to make sure that the climate control system can begin heatingthe cabin or defrosting the windshield as soon as a driver requestsit, the engine coolant temperature has to be kept sufficiently hot.Keeping the engine on is required to maintain the correct coolanttemperature.
Why does my engine stay on when it is extremely cold outside?
Your vehicle's engine and transmission are designed to deliver thepower you need at the most efficient engine speed. This may behigher than expected during heavy accelerations, and may fluctuatewhen driving at a steady speed. These are characteristics of theAtkinson engine cycle and the transmission technology that helpmaximize your hybrid's fuel economy.
Why does my engine rev up so high sometimes when I accelerate?
The fan noise comes from a fan located next to the high voltagebattery pack. This fan turns on when the battery requires cooling air.The fan speed, and associated noise level, will change according tothe amount of cooling required to maintain good performance. Main-taining the battery temperature at optimal conditions also prolongsthe useful life of the battery and helps to achieve better fuel economy.
What is the fan noise I hear from the rear of my hybrid?
Change the engine oil every 10,000 mi (16,000 km) or once per yearunder normal operating conditions.What is the engine oil change service interval?
Your hybrid vehicle can use E15 (15% ethanol, 85% gasoline) fuel, butyou may notice slightly reduced fuel economy because ethanolcontains less energy per gallon than gasoline. Your hybrid vehicle isnot designed to use E85 (85% ethanol).
Can I put E15 or E85 in my vehicle, and how will it affect my fueleconomy?
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Unique Driving Characteristics

You may notice a reduction in vehicle speedcaused by reduced engine power in orderto manage the engine coolant temperature. Your vehicle may enter this mode if certainhigh-temperature and high-load conditionstake place. The amount of speed reductiondepends on vehicle loading, grade andambient temperature. If this occurs, there isno need to pull off the road. You cancontinue to drive your vehicle.
The air conditioning may automatically turnon and off during severe operatingconditions to protect the engine fromoverheating. When the coolant temperaturedecreases to the normal operatingtemperature, the air conditioning turns on.
If the coolant temperature gauge moves fullyinto the red zone, or if the coolanttemperature warning or service engine soonmessages appear in your information display,do the following:
1. Pull off the road as soon as safelypossible and shift the transmission intopark (P).
2. Leave the engine running until thecoolant temperature gauge needlereturns to the normal position. If thetemperature does not drop after severalminutes, follow the remaining steps.
3. Switch the engine off and wait for it tocool. Check the coolant level.
4. If the coolant level is at or below theminimum mark, add prediluted coolantimmediately.
5. If the coolant level is normal, restart theengine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK
Note:Transmission fluid should be checkedby an authorized dealer. If required, fluidshould be added by an authorized dealer.
Have an authorized dealer check and changethe transmission fluid at the correct serviceinterval. See Maintenance (page 300). Yourtransmission does not consume fluid.However, the fluid level should be checkedif the transmission is not working properly,(i.e., if the transmission slips or shifts slowly)or if you notice some sign of fluid leakage.
Do not use supplemental transmission fluidadditives, treatments or cleaning agents. Theuse of these materials may affecttransmission operation and result in damageto internal transmission components.
BRAKE FLUID CHECK
WARNINGS
Do not use any fluid other than therecommended brake fluid as this willreduce brake efficiency. Use of incorrect fluidcould result in the loss of vehicle control,serious personal injury or death.
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Maintenance

GENERAL MAINTENANCE
INFORMATION
Why Maintain Your Vehicle?
Carefully following the maintenanceschedule helps protect against major repairexpenses resulting from neglect orinadequate maintenance and may help toincrease the value of your vehicle when yousell or trade it. Keep all receipts forcompleted maintenance with your vehicle.
We have established regular maintenanceintervals for your vehicle based uponrigorous testing. It is important that you haveyour vehicle serviced at the proper times.These intervals serve two purposes; one isto maintain the reliability of your vehicle andthe second is to keep your cost of owningyour vehicle down.
It is your responsibility to have all scheduledmaintenance performed and to make surethat the materials used meet thespecifications identified in this owner'smanual. See Capacities and Specifications(page 358).
Failure to perform scheduled maintenanceinvalidates warranty coverage on partsaffected by the lack of maintenance.
Why Maintain Your Vehicle at YourDealership?
Factory-Trained Technicians
Service technicians participate in extensivefactory-sponsored certification training tohelp them become experts on the operationof your vehicle. Ask your dealership aboutthe training and certification their technicianshave received.
Genuine Ford and Motorcraft® ReplacementParts
Dealerships stock Ford, Motorcraft andFord-authorized branded re-manufacturedreplacement parts. These parts meet orexceed our specifications. Parts installed atyour dealership carry a nationwide 24-monthor unlimited mile (kilometer) parts and laborlimited warranty.
If you do not use Ford authorized parts theymay not meet our specifications anddepending on the part, it could affectemissions compliance.
Convenience
Many dealerships have extended eveningand Saturday hours to make your servicevisit more convenient and they offer one stopshopping. They can perform any servicesthat are required on your vehicle, fromgeneral maintenance to collision repairs.
Note:Not all dealers have extended hoursor body shops. Please contact your dealerfor details.
Protecting Your Investment
Maintenance is an investment that paysdividends in the form of improved reliability,durability and resale value. To maintain theproper performance of your vehicle and itsemission control systems, make sure youhave scheduled maintenance performed atthe designated intervals.
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Scheduled Maintenance

Make sure to change your vehicle’s oils andfluids at the specified intervals or inconjunction with a repair. Flushing is a viableway to change fluid for many vehiclesub-systems during scheduled maintenance.
It is critical that systems are flushed only withnew fluid that is the same as that requiredto fill and operate the system or using aFord-approved flushing chemical.
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.
Hinges, latches and outside locks for proper operation. Lubricate if necessary.
Parking brake for proper operation.
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Scheduled Maintenance

NORMAL SCHEDULED MAINTENANCE
Normal Scheduled Maintenance 1, 2
Change engine oil and filter. 3Every 12 months or10,000 mi (16,000 km). Theoil monitoring systemdisplays a message in theinformation display.
Rotate tires, inspect tire wear and measure tread depth.
Inspect automatic transmission fluid level. Consult dealer for requirements.
Inspect brake pads, rotors, hoses and parking brake.
Inspect engine cooling system and motor/electronics cooling system strength and hoses.
Inspect exhaust system and heat shields.
Inspect half-shaft boots.
Inspect steering linkage, ball joints, suspension and tie-rod ends.
Inspect wheels and related components for abnormal noise, wear, looseness or drag.
1 Do not exceed one year or 10,000 mi (16,000 km) between service intervals.2 Perform multi-point inspection (recommended).3 Reset the oil monitoring system after engine oil and filter changes. See Oil Change Indicator Reset (page 304).
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Scheduled Maintenance

Exceptions
There are several exceptions to the NormalSchedule:
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
The normal oil change interval for vehiclesoperating in the Middle East, North Africa,Sub-Saharan Africa or locations with similarclimates using an American PetroleumInstitute (API) Certified for Gasoline Engines(Certification mark) oil of SM or SN quality is3,000 mi (5,000 km).
If the available API SM or SN oils are notavailable, then the oil change interval is2,000 mi (3,000 km).
Engine Air Filter and Cabin Air FilterReplacement
The life of the engine air filter and cabin airfilter is dependent on exposure to dusty anddirty conditions. Vehicles operated in theseconditions require frequent inspection andreplacement of the engine air filter and cabinair filter.
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Scheduled Maintenance