inflation pressure FORD SUPER DUTY 2023 Owners Manual

Why does the vehicle not come back toward the middle of the lane, as expected, in theAid, or Aid + Alert mode?
High cross winds are present.
There is a large road crown.
Rough roads, grooves or shoulder drop-offs.
Heavy, uneven loading of the vehicle or improper tire inflation pressure.
You changed the tires or modified the suspension.
LANE KEEPING SYSTEM
VIDEOS
Lane-Keeping Alert
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Tires
•Maintain recommended air pressure.
•To minimize flat spots on the tires,inflate all four tires to therecommended cold pressures listed onthe Safety Compliance Certificationlabel or Tire Label affixed to yourvehicle. When the vehicle is taken outof storage, reset the tire pressures asnecessary to the recommended levelslisted on the Safety ComplianceCertification label or Tire Label affixedto your vehicle.
Note:If you store your vehicle in a locationwith low ambient temperatures, follow theinstructions for care of summer tires.
Brakes
Make sure the brakes and parking brakefully release.
Note:If you intend on parking your vehiclefor an extended period after cleaning thewheels with a wheel cleaner, drive yourvehicle for a few minutes before doing so toreduce the risk of increased corrosion of thebrake discs, brake pads and linings.
REMOVING YOUR VEHICLE
FROM STORAGE
When your vehicle is ready to come out ofstorage, do the following:
•We recommend that you change theengine oil before you use your vehicleagain.
•Wash your vehicle to remove any dirtor grease film build-up on windowsurfaces.
•Check windshield wipers for anydeterioration.
•Check the underhood for any foreignmaterials such as mice or squirrelnests.
•Check the exhaust for any foreignmaterials.
•Check tire pressures and set tireinflation per the Tire Label.
•Check brake pedal operation. Corrodedbrake rotors could cause brake noise.Drive your vehicle and gently apply andrelease the brakes repeatedly over a10-minute drive to reduce the corrosionfrom the brakes.
•Check fluid levels (including coolant,oil and gas) to make sure there are noleaks, and fluids are at recommendedlevels.
•If you remove the battery, clean thebattery cable ends and check fordamage.
Contact an authorized dealer if you haveany concerns or issues.
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LOCATING THE TIRE LABEL
You will find a Tire Labelcontaining tire inflation pressureby tire size and other importantinformation located on the B-Pillaror the edge of the driver's door.See Locating the SafetyCompliance CertificationLabels (page 352).
DEPARTMENT OF
TRANSPORTATION UNIFORM
TIRE QUALITY GRADES
Tire Quality Grades apply to newpneumatic passenger car tires.The Quality grades can be foundwhere applicable on the tiresidewall between tread shoulderand maximum section width. Forexample: Treadwear 200Traction AA Temperature A.
These Tire Quality Grades aredetermined by standards that theUnited States Department ofTransportation has set.
Tire Quality Grades apply to newpneumatic passenger car tires.They do not apply to deep tread,winter-type snow tires,space-saver or temporary usespare tires, light truck or LT typetires, tires with nominal rimdiameters of 10 to 12 inches orlimited production tires as definedin Title 49 Code of FederalRegulations Part 575.104 (c)(2).
U.S. Department ofTransportation Tire qualitygrades: The U.S. Department ofTransportation requires us to giveyou the following informationabout tire grades exactly as thegovernment has written it.
Treadwear
The treadwear grade is acomparative rating based on thewear rate of the tire when testedunder controlled conditions on aspecified government test course.For example, a tire graded 150would wear 1½ times as well onthe government course as a tiregraded 100. The relativeperformance of tires dependsupon the actual conditions of theiruse, however, and may departsignificantly from the norm due tovariations in driving habits, servicepractices, and differences in roadcharacteristics and climate.
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Information on P Type Tires
P215/65R15 95H is an example of
a 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.)
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(130 km/h) to 186 mph
(299 km/h). These ratings arelisted in the following chart.
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*Treadwear: The treadweargrade is a comparative ratingbased on the wear rate of the tirewhen tested under controlledconditions on a specifiedgovernment test course. Forexample, a tire graded 150 wouldwear one and one-half times aswell on the government course asa tire graded 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 tiremarked C may have poor tractionperformance.
*Temperature: The temperaturegrades are A (the highest), B andC, representing the tire'sresistance to the generation ofheat and its ability to dissipateheat when tested under controlledconditions on a specified indoorlaboratory test wheel.
M.Maximum InflationPressure: Indicates the tiremanufacturers' maximumpermissible pressure or thepressure at which the maximumload can be carried by the tire. Thispressure is normally higher thanthe vehicle manufacturer'srecommended cold inflationpressure which can be found onthe Safety Compliance
Certification Label (affixed toeither the door hinge pillar,
door-latch post, or the door edgethat meets the door-latch post,next to the driver's seatingposition), or Tire Label which islocated on the B-Pillar or the edgeof the driver’s door. The coldinflation pressure should never beset lower than the recommendedpressure on the vehicle label.
The tire suppliers may haveadditional markings, notes orwarnings such as standard loador radial tubeless.
Additional InformationContained on the Tire Sidewallfor LT Type Tires
Note:Tire Quality Grades do notapply to this type of tire.
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LT type tires have some additionalinformation beyond those of Ptype tires; these differences aredescribed below.
A.LT: Indicates a tire, designatedby the Tire and Rim Association,that is intended for service on lighttrucks.
B.Load Range and LoadInflation Limits: Indicates thetire's load-carrying capabilitiesand its inflation limits.
C.Maximum Load Dual lb (kg)at psi (kPa) cold: Indicates themaximum load and tire pressurewhen the tire is used as a dual,defined as four tires on the rearaxle (a total of six or more tires onthe vehicle).
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.
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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.
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(TIN): A number on the sidewallof each tire providing informationabout the tire brand andmanufacturing plant, tire size anddate of manufacture. Also referredto as DOT 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 not
increase 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.
*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 mi (1.6 km).
*Recommended inflationpressure: The cold inflationpressure found on the SafetyCompliance Certification Label(affixed to either the door hingepillar, door-latch post, or the dooredge that meets the door-latchpost, next to the driver's seatingposition), or Tire Label located onthe B-Pillar or the edge of thedriver door.
* B-pillar: The structural memberat the side of the vehicle behindthe front door.
*Bead area of the tire: Area ofthe tire next to the rim.
* Sidewall of the tire: Areabetween the bead area and thetread.
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*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.
TIRE REPLACEMENT
REQUIREMENTS
AGE
WARNING: Tires degradeover time depending on manyfactors such as weather, storageconditions, and conditions of use(load, speed, inflation pressure)the tires experience throughouttheir lives.In general, tires should bereplaced after six yearsregardless of tread wear.However, heat caused by hotclimates or frequent high loadingconditions can accelerate theaging process and may requiretires to be replaced morefrequently.You should replace your sparetire when you replace the roadtires or after six years due toaging even if it has not beenused.
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 2000,the 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.
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cause steering, suspension, axle, transfercase or power transfer unit failure.Follow the recommended tire inflationpressures found on the SafetyCompliance Certification label, or theTire Label on the B-Pillar or the edge ofthe driver door. Failure to follow thisinstruction could result in loss of vehiclecontrol, vehicle rollover, or personal injuryor death.
Note:Do not use snow chains on vehicleswith LT275/65R20 or LT 285/75R18 sizedtires.
Note:The suspension insulation andbumpers will help prevent vehicle damage.Do not remove these components from yourvehicle when using snow tires and chains.
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, we recommend that you usesteel wheels of the same size andspecification, as cables may chipaluminum wheels.
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.
•Only install snow chains on the rearaxle.
•For Dual Rear Wheel (DRW) vehicles,only install snow chains on the outerwheel of each pair.
•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 you nolonger need them. Do not use tirechains on dry roads.
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CHECKING THE TIRE
PRESSURES
Safe operation of your vehiclerequires that your tires areproperly inflated. Every day beforeyou drive, check your tires.
At least once a month and beforelong trips, inspect each tire andcheck the tire pressure with a tiregauge. Inflate all tires to therecommended inflation pressure.See Inflating the Tires (page490).
INFLATING THE TIRES
WARNING: Under-inflationis the most common cause oftire failures and may result insevere tire cracking, treadseparation or blowout, withunexpected loss of vehiclecontrol and increased risk ofinjury. Under-inflation increasessidewall flexing and rollingresistance, resulting in heatbuildup and internal damage tothe tire. It also may result inunnecessary tire stress, irregularwear, loss of vehicle control andaccidents. A tire can lose up tohalf of its air pressure and notappear to be flat!
Use the recommended coldinflation pressure for optimum tireperformance and wear.Under-inflation or over-inflationmay cause uneven treadwearpatterns.
Always inflate your tires to therecommended inflation pressureeven if it is less than the maximuminflation pressure informationfound on the tire. You will find aTire Label containing themanufacturer's recommended tireinflation pressure by the tire sizeand other important informationlocated on the B-Pillar or the edgeof the driver door.
The recommended tire inflationpressure is also found on theSafety Compliance CertificationLabel, affixed to either the doorhinge pillar, door-latch post, or thedoor edge that meets thedoor-latch on the B-pillar, or onthe edge of the driver door.
Failure to follow the tire pressurerecommendations can causeuneven treadwear patterns andadversely affect the way yourvehicle handles.
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.
To check the pressure in yourtire(s):
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