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- Cold_inflation_pressure abstract "Cold inflation pressure is the inflation pressure of tires before the car is driven and the tires warmed up. Recommended cold inflation pressure is displayed on the owner's manual and on the placard (or sticker) attached to the vehicle door edge, pillar, glovebox door or fuel filler flap. Drivers are encouraged to make sure their tires are adequately inflated, as suboptimal tire pressure can greatly reduce fuel economy, increase emissions, increased wear on the edges of the tire surface, and can lead to premature failure of the tire. Excessive pressure, on the other hand, will lead to blowouts, decrease braking performance, and cause uneven wear (i.e. greater wear on the inner part of the tire surface).Tire pressure is commonly measured in psi in the imperial and US customary systems, bar, which is deprecated but accepted for use with SI or the kilopascal (kPa), which is an SI unit.Ambient temperature affects the cold tire pressure. Absolute cold tire pressure (gauge pressure plus atmospheric pressure) varies directly with the absolute temperature, measured in kelvins.From physics, the ideal gas law states that PV=nRT where P is absolute pressure, T is absolute temperature (Kelvin), V is the volume (assumed to be relatively constant in the case of a tire), and nR is constant for a given number of molecules of gas. To understand this, assume the tire was filled when it was 300 kelvin (80 degrees Fahrenheit). If the temperature varies 10%, i.e. by 30 kelvin (also 30 Celsius degrees or 54 Fahrenheit degrees), the pressure varies 10%. So if the tire was filled at 80F to 32 psi (or 47 psi absolute when we add atmospheric pressure), the change would be 4.7 psi for this 30 Celsius degree change, or .16 psi per Celsius degree or .1 psi per Fahrenheit degree or 1 psi for every 10 Fahrenheit degrees. Using SI units, that would be 1.1 kPa per kelvin.Hence, for a tire filled to 32 psi, the approximation usually made is that within the range of normal atmospheric temperatures and pressures:Tire pressure increases 1 psi for each 10 Fahrenheit degree increase in temperature, or conversely decreases 1 psi for each 10 Fahrenheit degree decrease in temperature andin SI units, tire pressure increases 1.1 kPa for each 1 Celsius degree increase in temperature, or conversely decreases 1.1 kPa for each 1 Celsius degree decrease in temperature.From the table below, one can see that these are only approximations.".
- Cold_inflation_pressure thumbnail Prüfgeräte_Reifendruck.JPG?width=300.
- Cold_inflation_pressure wikiPageID "2137828".
- Cold_inflation_pressure wikiPageLength "10765".
- Cold_inflation_pressure wikiPageOutDegree "25".
- Cold_inflation_pressure wikiPageRevisionID "704477892".
- Cold_inflation_pressure wikiPageWikiLink Bar_(unit).
- Cold_inflation_pressure wikiPageWikiLink Car.
- Cold_inflation_pressure wikiPageWikiLink Category:Automobile_maintenance.
- Cold_inflation_pressure wikiPageWikiLink Category:Tires.
- Cold_inflation_pressure wikiPageWikiLink Direct_TPMS.
- Cold_inflation_pressure wikiPageWikiLink Fuel_tank.
- Cold_inflation_pressure wikiPageWikiLink Glove_compartment.
- Cold_inflation_pressure wikiPageWikiLink Ideal_gas_law.
- Cold_inflation_pressure wikiPageWikiLink Imperial_units.
- Cold_inflation_pressure wikiPageWikiLink Inflatable.
- Cold_inflation_pressure wikiPageWikiLink International_System_of_Units.
- Cold_inflation_pressure wikiPageWikiLink Kelvin.
- Cold_inflation_pressure wikiPageWikiLink Owners_manual.
- Cold_inflation_pressure wikiPageWikiLink Pascal_(unit).
- Cold_inflation_pressure wikiPageWikiLink Pillar_(car).
- Cold_inflation_pressure wikiPageWikiLink Placard.
- Cold_inflation_pressure wikiPageWikiLink Pounds_per_square_inch.
- Cold_inflation_pressure wikiPageWikiLink Pressure.
- Cold_inflation_pressure wikiPageWikiLink Sticker.
- Cold_inflation_pressure wikiPageWikiLink Tire.
- Cold_inflation_pressure wikiPageWikiLink Tire-pressure_gauge.
- Cold_inflation_pressure wikiPageWikiLink Tire-pressure_monitoring_system.
- Cold_inflation_pressure wikiPageWikiLink United_States_customary_units.
- Cold_inflation_pressure wikiPageWikiLink Vehicle_door.
- Cold_inflation_pressure wikiPageWikiLink File:Prüfgeräte_Reifendruck.JPG.
- Cold_inflation_pressure wikiPageWikiLinkText "Cold inflation pressure".
- Cold_inflation_pressure wikiPageWikiLinkText "Tire pressure".
- Cold_inflation_pressure wikiPageUsesTemplate Template:Automotive-tech-stub.
- Cold_inflation_pressure wikiPageUsesTemplate Template:Reflist.
- Cold_inflation_pressure subject Category:Automobile_maintenance.
- Cold_inflation_pressure subject Category:Tires.
- Cold_inflation_pressure hypernym Pressure.
- Cold_inflation_pressure type Disease.
- Cold_inflation_pressure type Good.
- Cold_inflation_pressure type Technology.
- Cold_inflation_pressure type Wheel.
- Cold_inflation_pressure comment "Cold inflation pressure is the inflation pressure of tires before the car is driven and the tires warmed up. Recommended cold inflation pressure is displayed on the owner's manual and on the placard (or sticker) attached to the vehicle door edge, pillar, glovebox door or fuel filler flap.".
- Cold_inflation_pressure label "Cold inflation pressure".
- Cold_inflation_pressure sameAs Q494390.
- Cold_inflation_pressure sameAs Dæktryk.
- Cold_inflation_pressure sameAs Reifendruck.
- Cold_inflation_pressure sameAs Дугуйн_даралт.
- Cold_inflation_pressure sameAs Bandenspanning.
- Cold_inflation_pressure sameAs m.06pl6n.
- Cold_inflation_pressure sameAs Q494390.
- Cold_inflation_pressure wasDerivedFrom Cold_inflation_pressure?oldid=704477892.
- Cold_inflation_pressure depiction Prüfgeräte_Reifendruck.JPG.
- Cold_inflation_pressure isPrimaryTopicOf Cold_inflation_pressure.