2018 LINCOLN NAVIGATOR oil viscosity

•An open or pinched sensor hose.
•Incorrect engine oil level.
•Incorrect fuel for climatic conditions.
•Incorrect engine oil viscosity for climacticconditions.
Note:Some vehicles have a lifetime fuel filterthat is integrated with the fuel tank. Regularmaintenance or replacement is not needed.
Note:If these checks do not help you correctthe concern, have your vehicle checked assoon as possible.
Noise Emissions Warranty, ProhibitedTampering Acts and Maintenance
On January 1, 1978, Federal regulationbecame effective governing the noiseemission on trucks over 10,000 lb (4,536 kg)Gross Vehicle Weight Rating (GVWR). Thepreceding statements concerning prohibitedtampering acts and maintenance, and thenoise warranty found in the Warranty Guide,are applicable to complete chassis cabs over10,000 lb (4,536 kg) GVWR.
CATALYTIC CONVERTER
WARNING: Do not park, idle or driveyour vehicle on dry grass or other dryground cover. The emission system heatsup the engine compartment and exhaustsystem, creating the risk of fire.
WARNING: The normal operatingtemperature of the exhaust system is veryhigh. Never work around or attempt torepair any part of the exhaust system untilit has cooled. Use special care whenworking around the catalytic converter.The catalytic converter heats up to a veryhigh temperature after only a short periodof engine operation and stays hot after theengine is switched off.
WARNING: Exhaust leaks may resultin entry of harmful and potentially lethalfumes into the passenger compartment. Ifyou smell exhaust fumes inside yourvehicle, have your vehicle inspectedimmediately. Do not drive if you smellexhaust fumes.
Your vehicle has various emission controlcomponents and a catalytic converter thatenables it to comply with applicable exhaustemission standards.
To make sure that the catalytic converter andother emission control components continueto work properly:
•Do not crank the engine for more than10 seconds at a time.
•Do not run the engine with a spark pluglead disconnected.
•Do not push-start or tow-start yourvehicle. Use booster cables. See JumpStarting the Vehicle (page 329).
•Use only the specified fuel listed.
•Do not switch the ignition off when yourvehicle is moving.
•Avoid running out of fuel.
•Have the items listed in scheduledmaintenance information performedaccording to the specified schedule.
Note:Resulting component damage maynot be covered by the vehicle Warranty.
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Engine Emission Control

SpecificationName
WSH-M1C231-BA/C refrigerant compressor oil (Mexico):Motorcraft® PAG Refrigerant Compressor OilYN-12-D
CRCSL3151ESBMulti-purpose grease:ESB-M1C93-BMotorcraft® Multi-Purpose Grease SprayXL-5-A
-Lock cylinders (U.S.):Penetrating and Lock LubricantXL-1
-Lock cylinders (Canada):Penetrating FluidCXC-51-A
-Lock cylinders (Mexico):Penetrating and Lock LubricantMXL-1
Note:The engine antifreeze/coolant colorapproved to our SpecificationWSS-M97B57-A2 is yellow.
If you use oil and fluids that do not meet thedefined specification and viscosity grade,this may lead to:
•Component damage that your vehiclewarranty does not cover.
•Longer engine cranking periods.
•Increased emission levels.
•Reduced engine performance.
•Reduced fuel economy.
•Reduced brake performance.
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Capacities and Specifications

We recommend Motorcraft® motor oil foryour vehicle. If Motorcraft® oil is not available,use motor oils of the recommended viscositygrade that meet API SN Plus requirementsand display the API Certification Mark forgasoline engines.
An oil that displays this symbol conforms tocurrent engine, emission system and fueleconomy performance standards of ILSAC.
Do not use supplemental engine oil additivesbecause they are unnecessary and couldlead to engine damage that your vehiclewarranty does not cover.
Note:We recommend DOT 4 Low Viscosity(LV) High Performance Brake Fluid orequivalent meeting WSS-M6C65-A2. Use ofany fluid other than the recommended fluidmay cause degraded brake performanceand not meet our performance standards.Keep brake fluid clean and dry.Contamination with dirt, water, petroleumproducts or other materials may result inbrake system damage and possible failure.
Note: Automatic transmissions that requireMERCON® LV transmission fluid should onlyuse MERCON® LV transmission fluid. Theuse of any other fluid may causetransmission damage.
Alternative Engine Oil for Extremely
Cold Climates
To improve engine cold start performance,we recommend that you use the followingalternative engine oil in extremely coldclimates, where the ambient temperaturereaches -22.0°F (-30°C) or below.
SpecificationName
WSS-M2C953-A1Motorcraft® SAE 0W-30 Premium Synthetic Blend Motor Oil:Engine oil - SAE 0W-30XO-0W30-QSP
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