wheel size FORD F-53 2019 Owners Manual

The traction grades, from highestto lowest are AA, A, B, and C. Thegrades represent the tire’s abilityto stop on wet pavement asmeasured under controlledconditions on specifiedgovernment test surfaces ofasphalt and concrete. A tiremarked C may have poor tractionperformance.
Temperature A B C
WARNING: Thetemperature grade for this tire isestablished for a tire that isproperly inflated and notoverloaded. Excessive speed,underinflation, or excessiveloading, either separately or incombination, can cause heatbuildup and possible tire failure.
The temperature grades are A(the highest), B and C,representing the tire’s resistanceto the generation of heat and itsability to dissipate heat whentested under controlled conditionson a specified indoor laboratorytest wheel. Sustained hightemperature can cause thematerial of the tire to degenerateand reduce tire life, and excessivetemperature can lead to suddentire failure. The grade Ccorresponds to a level ofperformance which all passengercar tires must meet under the
Federal Motor Vehicle SafetyStandard No. 139. Grades B and Arepresent higher levels ofperformance on the laboratorytest wheel than the minimumrequired by law.
Glossary of Tire Terminology
*Tire label: A label showing theoriginal equipment tire sizes,recommended inflation pressureand the maximum weight thevehicle can carry.
*Tire Identification Number: Anumber on the sidewall of eachtire providing information aboutthe tire brand and manufacturingplant, tire size and date ofmanufacture. Also referred to asDOT code.
*Inflation pressure: A measureof the amount of air in a tire.
*Standard load: A class ofP-metric or Metric tires designedto carry a maximum load at setpressure. For example: ForP-metric tires 35 psi (2.4 bar) andfor Metric tires 36 psi (2.5 bar).Increasing the inflation pressurebeyond this pressure will notincrease the tire’s load carryingcapability.
*Extra load: A class of P-metricor Metric tires designed to carry aheavier maximum load at 42 psi(2.9 bar). Increasing the inflationpressure beyond this pressure willnot increase the tire’s loadcarrying capability.
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*kPa: Kilopascal, a metric unit ofair pressure.
*PSI: Pounds per square inch, astandard unit of air pressure.
*Cold tire pressure: The tirepressure when the vehicle hasbeen stationary and out of directsunlight for an hour or more andprior to the vehicle being driven for1 mile (1.6 kilometers).
*Recommended inflationpressure: The cold inflationpressure found on the SafetyCompliance Certification Label.See the completed vehicle'sowner's manual for the locationof the Safety ComplianceCertification Label.
*Bead area of the tire: Area ofthe tire next to the rim.
* Sidewall of the tire: Areabetween the bead area and thetread.
*Tread area of the tire: Area ofthe perimeter of the tire thatcontacts the road when mountedon the vehicle.
*Rim: The metal support (wheel)for a tire or a tire and tubeassembly upon which the tirebeads are seated.
Information Contained on theTire Sidewall
Both United States and CanadaFederal regulations require tiremanufacturers to placestandardized information on thesidewall of all tires. Thisinformation identifies anddescribes the fundamentalcharacteristics of the tire and alsoprovides a U.S. DOT TireIdentification Number for safetystandard certification and in caseof a recall.
Information on P Type Tires
P215/65R15 95H is an example ofa tire size, load index and speedrating. The definitions of theseitems are listed below. (Note thatthe tire size, load index and speedrating for your vehicle may bedifferent from this example.)
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A.P: Indicates a tire, designatedby the Tire and Rim Association,that may be used for service oncars, sport utility vehicles,minivans and light trucks.Note: Ifyour tire size does not begin witha letter this may mean it isdesignated by either the EuropeanTire and Rim TechnicalOrganization or the Japan TireManufacturing Association.
B.215: Indicates the nominalwidth of the tire in millimetersfrom sidewall edge to sidewalledge. In general, the larger thenumber, the wider the tire.
C.65: Indicates the aspect ratiowhich gives the tire's ratio ofheight to width.
D.R: Indicates a radial type tire.
E.15: Indicates the wheel or rimdiameter in inches. If you changeyour wheel size, you will have topurchase new tires to match thenew wheel diameter.
F.95: Indicates the tire's loadindex. It is an index that relates tohow much weight a tire can carry.You may find this information inyour owner’s manual. If not,contact a local tire dealer.
Note:You may not find thisinformation on all tires because itis not required by federal law.
G.H: Indicates the tire's speedrating. The speed rating denotesthe speed at which a tire isdesigned to be driven for extendedperiods of time under a standardcondition of load and inflationpressure. The tires on your vehiclemay operate at differentconditions for load and inflationpressure. These speed ratings mayneed to be adjusted for thedifference in conditions. Theratings range from 81 mph (130km/h) to 186 mph (299 km/h).These ratings are listed in thefollowing chart.
Note:You may not find thisinformation on all tires because itis not required by federal law.
Speed rating - mph(km/h)Letterrating
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
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Speed rating - mph(km/h)Letterrating
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 IdentificationNumber: This begins with theletters DOT and indicates that thetire meets all federal standards.The next two numbers or lettersare the plant code designatingwhere it was manufactured, thenext two are the tire size code andthe last four numbers representthe week and year the tire wasbuilt. For example, the numbers317 mean the 31st week of 1997.After 2000 the numbers go to fourdigits. For example, 2501 meansthe 25th week of 2001. Thenumbers in between areidentification codes used fortraceability. This information isused to contact customers if a tiredefect requires a recall.
I.M+S or M/S: Mud and Snow, or
AT: All Terrain, or
AS: All Season.
J.Tire Ply Composition andMaterial Used: Indicates thenumber of plies or the number oflayers of rubber-coated fabric inthe tire tread and sidewall. Tiremanufacturers also must indicatethe ply materials in the tire and thesidewall, which include steel,nylon, polyester, and others.
K.Maximum Load: Indicates themaximum load in kilograms andpounds that can be carried by thetire. See the Safety ComplianceCertification Label for the correcttire pressure for your vehicle. Seethe completed vehicle's owner'smanual for the location of theSafety Compliance CertificationLabel.
L.Treadwear, Traction andTemperature Grades:
*Treadwear The treadwear gradeis a comparative rating based onthe wear rate of the tire whentested under controlled conditionson a specified government testcourse. For example, a tire graded150 would wear 1½ times as wellon the government course as a tiregraded 100.
*Traction: The traction grades,from highest to lowest are AA, A,B, and C. The grades represent thetire's ability to stop on wetpavement as measured undercontrolled conditions on specifiedgovernment test surfaces ofasphalt and concrete. A tire
marked C may have poor tractionperformance.
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D.Maximum Load Single lb(kg) at psi (kPa) cold: Indicatesthe maximum load and tirepressure when the tire is used asa single; defined as two tires(total) on the rear axle.
Information on T Type Tires
T145/80D16 is an example of atire size.
Note:The temporary tire size foryour vehicle may be different fromthis example. Tire Quality Gradesdo not apply to this type of tire.
T type tires have some additionalinformation beyond those of Ptype tires; these differences aredescribed below:
A.T: Indicates a type of tire,designated by the Tire and RimAssociation, that is intended fortemporary service on cars, sportutility vehicles, minivans and lighttrucks.
B.145: Indicates the nominalwidth of the tire in millimetersfrom sidewall edge to sidewalledge. In general, the larger thenumber, the wider the tire.
C.80: Indicates the aspect ratiowhich gives the tire's ratio ofheight to width. Numbers of 70 orlower indicate a short sidewall.
D.D: Indicates a diagonal type tire.
R: Indicates a radial type tire.
E.16: Indicates the wheel or rimdiameter in inches. If you changeyour wheel size, you will have topurchase new tires to match thenew wheel diameter.
Inflating Your Tires
Safe operation of your vehiclerequires that your tires areproperly inflated. Remember thata tire can lose up to half of its airpressure without appearing flat.
Every day before you drive, checkyour tires. If one looks lower thanthe others, use a tire gauge tocheck pressure of all tires andadjust if required.
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When weather temperaturechanges occur, tire inflationpressures also change. A 10°F(6°C) temperature drop cancause a corresponding drop of 1psi (7 kPa) in inflation pressure.Check your tire pressuresfrequently and adjust them to theproper pressure which can befound on the Safety ComplianceCertification Label or Tire Label.
To check the pressure in yourtire(s):
1.Make sure the tires are cool,meaning they are not hot fromdriving even a mile.
Note:If you are checking tirepressure when the tire is hot, (forexample, driven more than 1 mile[1.6 kilometers]), never bleed orreduce air pressure. The tires arehot from driving and it is normal forpressures to increase aboverecommended cold pressures. Ahot tire at or below recommendedcold inflation pressure could besignificantly under-inflated.
Note:If you have to drive adistance to get air for your tire(s),check and record the tire pressurefirst and add the appropriate airpressure when you get to thepump. It is normal for tires to heatup and the air pressure inside to goup as you drive.
2.Remove the cap from the valveon one tire, then firmly pressthe tire gauge onto the valve
and measure the pressure.
3.Add enough air to reach therecommended air pressure.
Note:If you overfill the tire, releaseair by pressing on the metal stemin the center of the valve. Thenrecheck the pressure with your tiregauge.
4.Replace the valve cap.
5.Repeat this procedure for eachtire, including the spare.
Note:Some spare tires operate ata higher inflation pressure than theother tires. For T type mini-sparetires, see the Dissimilar spare wheeland tire assembly information fora description. Store and maintainat 60 psi (4.15 bar). For full-sizeand dissimilar spare tires, see theDissimilar spare wheel and tireassembly information for adescription. Store and maintain atthe higher of the front and rearinflation pressure as shown on theSafety Compliance CertificationLabel or Tire Label.
6.Visually inspect the tires tomake sure there are no nails orother objects embedded thatcould poke a hole in the tireand cause an air leak.
7.Check the sidewalls to makesure there are no gouges, cutsor bulges.
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U.S. DOT Tire IdentificationNumber
Both United States and CanadaFederal regulations require tiremanufacturers to placestandardized information on thesidewall of all tires. Thisinformation identifies anddescribes the fundamentalcharacteristics of the tire and alsoprovides a U.S. DOT TireIdentification Number for safetystandard certification and in caseof a recall.
This begins with the letters DOTand indicates that the tire meetsall federal standards. The nexttwo numbers or letters are theplant code designating where itwas manufactured, the next twoare the tire size code and the lastfour numbers represent the weekand year the tire was built. Forexample, the numbers 317 meanthe 31st week of 1997. After 2000the numbers go to four digits. Forexample, 2501 means the 25thweek of 2001. The numbers inbetween are identification codesused for traceability. Thisinformation is used to contactcustomers if a tire defect requiresa recall.
Tire ReplacementRequirements
Your vehicle is equipped with tiresdesigned to provide a safe rideand handling capability.
WARNING: Only usereplacement tires and wheelsthat are the same size, loadindex, speed rating and type(such as P-metric versusLT-metric or all-season versusall-terrain) as those originallyprovided by Ford. Therecommended tire and wheelsize may be found on either theSafety Compliance CertificationLabel (affixed to either the doorhinge pillar, door-latch post, orthe door edge that meets thedoor-latch post, next to thedriver's seating position), or theTire Label which is located onthe B-Pillar or edge of thedriver's door. If this informationis not found on these labels, thenyou should contact yourauthorized dealer as soon aspossible. Use of any tire or wheelnot recommended by Ford canaffect the safety andperformance of your vehicle,which could result in anincreased risk of loss of vehiclecontrol, vehicle rollover, personalinjury and death.
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WARNING: To reduce therisk of serious injury, whenmounting replacement tires andwheels, you should not exceedthe maximum pressure indicatedon the sidewall of the tire to setthe beads without additionalprecautions listed below. If thebeads do not seat at themaximum pressure indicated,re-lubricate and try again.
WARNING: When inflatingthe tire for mounting pressuresup to 20 psi (1.38 bar) greaterthan the maximum pressure onthe tire sidewall, the followingprecautions must be taken toprotect the person mounting thetire:
WARNING: 1. Make surethat you have the correct tireand wheel size.
WARNING: 2. Lubricate thetire bead and wheel bead seatarea again.
WARNING: 3. Stand at aminimum of 12 ft (3.66 m) awayfrom the wheel and tireassembly.
WARNING: 4. Use both eyeand ear protection.
WARNING: For a mountingpressure more than 20 psi(1.38 bar) greater than themaximum pressure, a Forddealer or other tire serviceprofessional should do themounting.
WARNING: Always inflatesteel carcass tires with a remoteair fill with the person inflatingstanding at a minimum of 12 ft(3.66 m) away from the wheeland tire assembly.
Important: Remember to replacethe wheel valve stems when theroad tires are replaced on yourvehicle
It is recommended that the twofront tires or two rear tiresgenerally be replaced as a pair.
Replacing a Tire That isGreenhouse Gas Certified
The tires installed on this vehicleat the factory as originalequipment are certified forGreenhouse Gas and FuelEfficiency regulations.Replacement tires must be ofequal or lower rolling resistance
level (TRRL or Crr). Consult withyour tire supplier(s) forappropriate replacement tires.
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Tire Rotation
Note:If your tires show unevenwear ask an authorized dealer tocheck for and correct any wheelmisalignment, tire imbalance ormechanical problem involvedbefore tire rotation.
Note:Your vehicle may beequipped with a dissimilar sparewheel and tire assembly. Adissimilar spare wheel and tireassembly is defined as a sparewheel and tire assembly that isdifferent in brand, size orappearance from the road tires andwheels. If you have a dissimilarspare wheel and tire assembly it isintended for temporary use onlyand should not be used in a tirerotation.
Note:After having your tiresrotated, inflation pressure must bechecked and adjusted to thevehicle requirements.
Rotating your tires at therecommended interval (asindicated in the ScheduledMaintenance chapter) will helpyour tires wear more evenly,providing better tire performanceand longer tire life.
Dual rear wheel drive vehicle - sixtire rotation
If your vehicle is equipped withdual rear wheels it isrecommended that the front andrear tires (in pairs) be rotated onlyside to side. We do notrecommend splitting up the dualrear wheels. Rotate them side toside as a set. After tire rotation,inflation pressures must beadjusted for the tires newpositions in accordance withvehicle requirements.
Sometimes irregular tire wear canbe corrected by rotating the tires.
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USING SNOW CHAINS
WARNING: Snow tires must bethe same size, load index, and speedrating as those originally provided byFord. Use of any tire or wheel notrecommended by Ford can affect thesafety and performance of your vehicle,which could result in an increased risk ofloss of vehicle control, vehicle rollover,personal injury, and death. Additionally,the use of non-recommended tires andwheels could cause steering, suspension,axle, transfer case, or power transfer unitfailure. It is also strongly advised tofollow the Ford recommended tireinflation pressure found on the SafetyCompliance Certification Label (affixedto either the door hinge pillar, door-latchpost, or the door edge that meets thedoor-latch post, next to the driver’sseating position), or Tire Label which islocated on the B-Pillar or the edge of thedriver door. Failure to follow the tirepressure recommendations can causeuneven treadwear patterns andadversely affect the way your vehiclehandles.
The tires on your vehicle have all-weathertreads to provide traction in rain and snow.However, in some climates, you may needto use snow tires and cables. If you needto use cables, it is recommended that steelwheels (of the same size andspecifications) be used, as cables may chipaluminum wheels.
Note:The suspension insulation andbumpers help prevent vehicle damage. Donot remove these components from yourvehicle when using snow tires and chains.
Follow these guidelines when using snowtires and chains:
•If possible, avoid fully loading yourvehicle.
•Use only SAE Class S chains.
•Install chains securely, verifying thatthe chains do not touch any wiring,brake lines or fuel lines.
•Drive cautiously. If you hear the chainsrub or bang against your vehicle, stopand retighten the chains. If this doesnot work, remove the chains to preventdamage to your vehicle.
•Remove the tire chains when they areno longer needed. Do not use tirechains on dry roads.
If you have any questions regarding snowchains or cables, please contact yourauthorized dealer.
CHANGING A ROAD WHEEL
If you get a flat tire while driving, do notapply the brake heavily. Instead, graduallydecrease your speed. Hold the steeringwheel firmly and slowly move to a safeplace on the side of the road.
Dissimilar Spare Wheel and TireAssembly Information
WARNING: Failure to follow theseguidelines could result in an increasedrisk of loss of vehicle control, injury ordeath.
If you have a dissimilar spare wheel andtire, then it is intended for temporary useonly. This means that if you need to use it,you should replace it as soon as possiblewith a road wheel and tire assembly thatis the same size and type as the road tiresand wheels that were originally providedby Ford. If the dissimilar spare tire or wheelis damaged, it should be replaced ratherthan repaired.
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