2018 LINCOLN NAVIGATOR wheel

GENERAL INFORMATION
Use only approved wheel and tire sizes,using other sizes could damage your vehicle.If you change the diameter of the tires fromthat fitted at the factory, the speedometermay not display the correct speed. If youintend to change the size of the wheels fromthat fitted by the manufacturer, you cancheck the suitability with an authorizeddealer.
Additional information related to thefunctionality and maintenance of your tirescan be found later in this chapter. See TireCare (page 394).
You can find the recommended tire inflationpressures can on the Tire Label, which is onthe B-pillar or the edge of the driver door.You can also find this information on theSafety Compliance Certification Label, affixedto either the door hinge pillar, door-latchpost, or the door edge that meets the doorlatch post; next to the driver seating position.
We strongly recommend maintaining thesetire pressures at all times. Failure to followthe tire pressure recommendations cancause uneven treadwear patterns, reducedfuel economy, and adversely affect the wayyour vehicle handles.
Note:Check and set the tire pressure at theambient temperature in which you areintending to drive your vehicle and when thetires are cold.
Note:Check your tire pressures at least onceper month.
If your vehicle has a spare tire, set thepressure to the highest value given for yourvehicle and tire size combination.
Notice to utility vehicle and truckowners
WARNING: Utility vehicles have asignificantly higher rollover rate than othertypes of vehicles.
WARNING: Vehicles with a highercenter of gravity (utility and four-wheeldrive vehicles) handle differently thanvehicles with a lower center of gravity(passenger cars). Avoid sharp turns,excessive speed and abrupt steering inthese vehicles. Failure to drive cautiouslyincreases the risk of losing control of yourvehicle, vehicle rollover, personal injuryand death.
WARNING: In a rollover crash, anunbelted person is significantly more likelyto die than a person wearing a seatbelt.
WARNING: Do not becomeoverconfident in the ability of four-wheeldrive vehicles. Although a four-wheel drivevehicle may accelerate better than atwo-wheel drive vehicle in low tractionsituations, it won't stop any faster thantwo-wheel drive vehicles. Always drive ata safe speed.
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Utility vehicles and trucks handle differentlythan passenger cars in the various drivingconditions that are encountered on streets,highways and off-road. Utility vehicles andtrucks are not designed for cornering atspeeds as high as passenger cars any morethan low-slung sports cars are designed toperform satisfactorily under off-roadconditions.
Study your owner's manual and anysupplements for specific information aboutequipment features, instructions for safedriving and additional precautions to reducethe risk of an accident or serious injury.
Four-wheel drive system (If Equipped)
WARNING: Do not becomeoverconfident in the ability of four-wheeldrive vehicles. Although a four-wheel drivevehicle may accelerate better than atwo-wheel drive vehicle in low tractionsituations, it won't stop any faster thantwo-wheel drive vehicles. Always drive ata safe speed.
A vehicle equipped with four-wheel drive,when selected, has the ability to use all fourwheels to power itself. This increases tractionwhich may enable you to safely drive overterrain and road conditions that aconventional two-wheel drive vehicle cannot.
Power is supplied to all four wheels througha transfer case or power transfer unit.Four-wheel drive vehicles allow you to selectdifferent modes as necessary. Forinformation on transfer case operation andshifting procedures, See Four-Wheel Drive(page 216). For information on transfer casemaintenance, See Maintenance (page 361).You should become thoroughly familiar withthis information before you operate yourvehicle.
On some four-wheel drive vehicles, the initialshift from two-wheel to four-wheel drivewhen the vehicle is moving can cause amomentary clunk and ratcheting sound.These sounds are normal and are not causefor concern.
In four-wheel drive vehicles, the size of thespare tire relative to the remaining tires canhave an effect on the 4x4 system. If there isa significant difference between the size ofa spare and the remaining tires, four-wheeldrive functionality may be limited. See UsingFour-Wheel Drive (page 216).
How your vehicle differs from othervehicles
Sport utility vehicles and trucks can differfrom some other vehicles in a few noticeableways. Your vehicle may be:
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•Higher - to allow higher load carryingcapacity and to allow it to travel overrough terrain without getting hung up ordamaging underbody components.
•Shorter - to give it the capability toapproach inclines and drive over thecrest of a hill without getting hung up ordamaging underbody components. Allother things held equal, a shorterwheelbase may make your vehiclequicker to respond to steering inputsthan a vehicle with a longer wheelbase.
•Narrower - to provide greatermaneuverability in tight spaces,particularly in off-road use.
As a result of the above dimensionaldifferences, Sport utility vehicles and trucksoften have a higher center of gravity and agreater difference in center of gravitybetween the loaded and unloaded condition.These differences that make your vehicle soversatile also make it handle differently thanan ordinary passenger car.
TIRE CARE
Information About Uniform Tire QualityGrading
Tire Quality Grades apply to newpneumatic passenger car tires. TheQuality grades can be found whereapplicable on the tire sidewall betweentread shoulder and maximum sectionwidth. For example: Treadwear 200Traction AA Temperature A.
These Tire Quality Grades aredetermined by standards that the UnitedStates Department of Transportation hasset.
Tire Quality Grades apply to newpneumatic passenger car tires. They donot apply to deep tread, winter-typesnow tires, space-saver or temporaryuse spare tires, light truck or LT typetires, tires with nominal rim diameters of10 to 12 inches or limited production tiresas defined in Title 49 Code of FederalRegulations Part 575.104 (c)(2).
U.S. Department of Transportation Tirequality grades: The U.S. Department ofTransportation requires us to give youthe following information about tiregrades exactly as the government has
written it.
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Treadwear
The treadwear grade is a comparativerating based on the wear rate of the tirewhen tested under controlled conditionson a specified government test course.For example, a tire graded 150 wouldwear one and one-half (1 ½) times as wellon the government course as a tiregraded 100. The relative performanceof tires depends upon the actualconditions of their use, however, andmay depart significantly from the normdue to variations in driving habits,service practices, and differences inroad characteristics and climate.
Traction AA A B C
WARNING: The traction gradeassigned to this tire is based onstraight-ahead braking traction tests,and does not include acceleration,cornering, hydroplaning or peaktraction characteristics.
The traction grades, from highest tolowest are AA, A, B, and C. The gradesrepresent the tire’s ability to stop on wetpavement as measured under controlledconditions on specified government testsurfaces of asphalt and concrete. A tiremarked C may have poor tractionperformance.
Temperature A B C
WARNING: The temperaturegrade for this tire is established for atire that is properly inflated and notoverloaded. Excessive speed,underinflation, or excessive loading,either separately or in combination,can cause heat buildup and possibletire failure.
The temperature grades are A (thehighest), B and C, representing the tire’sresistance to the generation of heat andits ability to dissipate heat when testedunder controlled conditions on aspecified indoor laboratory test wheel.Sustained high temperature can cause
the material of the tire to degenerateand reduce tire life, and excessivetemperature can lead to sudden tirefailure. The grade C corresponds to alevel of performance which allpassenger car tires must meet under theFederal Motor Vehicle Safety StandardNo. 139. Grades B and A representhigher levels of performance on thelaboratory test wheel than the minimumrequired by law.
Glossary of Tire Terminology
*Tire label: A label showing the originalequipment tire sizes, recommendedinflation pressure and the maximumweight the vehicle can carry.
*Tire Identification Number (TIN): A
number on the sidewall of each tireproviding information about the tirebrand and manufacturing plant, tire sizeand date of manufacture. Also referredto as DOT code.
*Inflation pressure: A measure of theamount of air in a tire.
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*Standard load: A class of P-metric orMetric tires designed to carry amaximum load at set pressure. Forexample: For P-Metric tires 35 psi(2.4 bar) and for Metric 36 psi (2.5 bar).Increasing the inflation pressure beyondthis pressure will not increase the tire’sload carrying capability.
*Extra load: A class of P-metric or Metrictires designed to carry a heaviermaximum load at 42 psi (2.9 bar).Increasing the inflation pressure beyondthis pressure will not increase the tire’sload carrying capability.
*kPa: Kilopascal, a metric unit of airpressure.
*PSI: Pounds per square inch, a standardunit of air pressure.
*Cold tire pressure: The tire pressurewhen the vehicle has been stationaryand out of direct sunlight for an hour ormore and prior to the vehicle beingdriven for 1 mile (1.6 kilometers).
*Recommended inflation pressure: Thecold inflation pressure found on theSafety Compliance Certification Label(affixed to either the door hinge pillar,door-latch post, or the door edge thatmeets the door-latch post, next to thedriver's seating position), or Tire Labellocated on the B-pillar or the edge of thedriver's door.
B-pillar: The structural member at theside of the vehicle behind the front door.
*Bead area of the tire: Area of the tirenext to the rim.
* Sidewall of the tire: Area between thebead area and the tread.
*Tread area of the tire: Area of theperimeter of the tire that contacts the
road when mounted on the vehicle.
*Rim: The metal support (wheel) for atire or a tire and tube assembly uponwhich the tire beads are seated.
Information Contained on the TireSidewall
Both United States and Canada Federalregulations require tire manufacturersto place standardized information on thesidewall of all tires. This informationidentifies and describes the fundamentalcharacteristics of the tire and alsoprovides a U.S. DOT Tire IdentificationNumber for safety standard certificationand in case of a recall.
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Information on P Type Tires
P215/65R15 95H is an example of a tiresize, load index and speed rating. Thedefinitions of these items are listedbelow. (Note that the tire size, load indexand speed rating for your vehicle maybe different from this example.)
A. P: Indicates a tire, designated by theTire and Rim Association, that may beused for service on cars, sport utilityvehicles, minivans and light trucks. Note:If your tire size does not begin with aletter this may mean it is designated byeither the European Tire and RimTechnical Organization or the Japan TireManufacturing Association.
B. 215: Indicates the nominal width ofthe tire in millimeters from sidewall edgeto sidewall edge. In general, the largerthe number, the wider the tire.
C. 65: Indicates the aspect ratio whichgives the tire's ratio of height to width.
D. R: Indicates a radial type tire.
E. 15: Indicates the wheel or rim
diameter in inches. If you change yourwheel size, you will have to purchasenew tires to match the new wheeldiameter.
F. 95: Indicates the tire's load index. Itis an index that relates to how muchweight a tire can carry. You may find thisinformation in your owner’s manual. Ifnot, contact a local tire dealer.
Note:You may not find this informationon all tires because it is not required byfederal law.
G. H: Indicates the tire's speed rating.The speed rating denotes the speed atwhich a tire is designed to be driven forextended periods of time under astandard condition of load and inflationpressure. The tires on your vehicle mayoperate at different conditions for loadand inflation pressure. These speedratings may need to be adjusted for thedifference in conditions. The ratings
range from 81 mph (130 km/h) to186 mph (299 km/h). These ratings arelisted in the following chart.
Note:You may not find this informationon all tires because it is not required byfederal law.
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I
J
KL
M
A
B
CDEFG
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mph ( km/h)Letter rating
81 (130)M
87 (140)N
99 (159)Q
106 (171)R
112 (180)S
118 (190)T
124 (200)U
130 (210)H
149 (240)V
mph ( km/h)Letter rating
168 (270)W
186 (299)Y
Note:For tires with a maximum speed
capability over 149 mph (240 km/h), tire
manufacturers sometimes use the letters
ZR. For those with a maximum speed
capability over 186 mph (299 km/h), tire
manufacturers always use the letters
ZR.
H. U.S. DOT Tire Identification Number:This begins with the letters DOT andindicates that the tire meets all federalstandards. The next two numbers orletters are the plant code designatingwhere it was manufactured, the next two
are the tire size code and the last fournumbers represent the week and yearthe tire was built. For example, thenumbers 317 mean the 31st week of1997. After 2000 the numbers go to four
digits. For example, 2501 means the25th week of 2001. The numbers inbetween are identification codes usedfor traceability. This information is usedto contact customers if a tire defectrequires a recall.
I. M+S or M/S: Mud and Snow, or
AT: All Terrain, or
AS: All Season.
J. Tire Ply Composition and MaterialUsed: Indicates the number of plies orthe number of layers of rubber-coatedfabric in the tire tread and sidewall. Tiremanufacturers also must indicate the plymaterials in the tire and the sidewall,which include steel, nylon, polyester,and others.
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K. Maximum Load: Indicates themaximum load in kilograms and poundsthat can be carried by the tire (affixed toeither the door hinge pillar, door-latchpost, or the door edge that meets thedoor-latch post, next to the driver'sseating position), or Tire Label locatedon the B-pillar or the edge of the driver'sdoor.
L. Treadwear, Traction andTemperature Grades:
*Treadwear: The treadwear grade is acomparative rating based on the wearrate of the tire when tested undercontrolled conditions on a specifiedgovernment test course. For example,a tire graded 150 would wear 1½ timesas well on the government course as a
tire graded 100.
*Traction: The traction grades, fromhighest to lowest are AA, A, B, and C.The grades represent the tire's ability tostop on wet pavement as measuredunder controlled conditions on specifiedgovernment test surfaces of asphalt andconcrete. A tire marked C may havepoor traction performance.
*Temperature: The temperature gradesare A (the highest), B and C,representing the tire's resistance to thegeneration of heat and its ability todissipate heat when tested undercontrolled conditions on a specifiedindoor laboratory test wheel.
M. Maximum Inflation Pressure:Indicates the tire manufacturers'maximum permissible pressure or the
pressure at which the maximum loadcan be carried by the tire. This pressureis normally higher than the vehiclemanufacturer's recommended coldinflation pressure which can be foundon the Safety Compliance CertificationLabel (affixed to either the door hingepillar, door-latch post, or the door edgethat meets the door-latch post, next to
the driver's seating position), or TireLabel located on the B-pillar or the edgeof the driver's door. The cold inflationpressure should never be set lower thanthe recommended pressure on thevehicle label.
The tire suppliers may have additionalmarkings, notes or warnings such asstandard load or radial tubeless.
Additional Information Contained onthe Tire Sidewall for LT Type Tires
Note:Tire Quality Grades do not applyto this type of tire.
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