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Tire Care and Maintenance Guide

This information has been provided by Goodyear Tires. 

Maintain Proper Inflation Pressure In Your Tires

Proper inflation pressure is necessary for optimum tire performance, safety, and fuel economy. To maintain proper inflation pressure, frequently (at least monthly) check tires (when they are cool) with an accurate tire pressure gauge.1 For example, it is difficult to tell just by looking at radial tires whether they are under inflated. Furthermore, when operating a vehicle equipped with radial tires, it is difficult to notice when a tire has gone flat, or nearly flat, since the “feel” of the vehicle does not change significantly.

1Evidence of air loss or repeated under inflation always requires expert inspection to determine the source of leakage, and tire removal to determine repairability.

To avoid injury, never attempt to reinflate a tire that has been run on while severely underinflated. Progressive air loss may result from punctures, cuts, curbing, impacts, or partial bead unseating. Some fitment causes for air loss are incomplete bead seating, bead tearing caused by a machine tool due to insufficient lubrication or improper adjustment, and leaking valve core or rubber valve components. These components should be replaced when problems are detected and whenever tires are replaced.

Maintain Inflation Pressure at the Recommended Level

This level is recommended by the vehicle manufacturer and is shown on the vehicle placard or in your vehicle’s owner’s manual. Maintaining proper inflation pressure is the single most important thing you can do to promote tire durability and prolong tread life.  Underinflation is the leading cause of tire failure and may result in severe cracking, component separation, or “blowout.” It reduces tire load capacity, allows excessive sidewall flexing, and increases rolling resistance, resulting in heat and mechanical damage. Over inflation increases stiffness, which may deteriorate ride, and generate unwanted vibration. Over inflation also increases the chances of impact damage.

Don’t Spin Your Tires Excessively

Avoid excessive tire spinning when your vehicle is stuck in snow, ice, mud or sand. The centrifugal forces generated by a free-spinning tire/wheel assembly may cause sudden tire explosion, resulting in vehicle damage and/or serious personal injury to you or a bystander. Never exceed 35 mph/55 kph, as indicated on your speedometer. Use a gentle backward and forward rocking motion to free your vehicle for continued driving. Never stand near or behind a tire spinning at high speeds, for example, while attempting to push a vehicle that is stuck or when an on-the-car spin balance machine is in use.

Check Your Tires For Wear

Always remove tires from service when they reach 2/32″ (.16 cm) remaining tread depth. All new tires have treadwear indicators which appear as smooth banks in the tread grooves when they wear to the 2/32″ (.16 cm) level. Many wet weather accidents result from skidding on bald or nearly bald tires. Excessively worn tires are also more susceptible to penetration.
 

Check Your Tires For Damage

Frequent (at least monthly) inspection of your tires for signs of damage and their general condition is important for safety. If you have any questions, have your tire dealer inspect them. Impacts, penetrations, cracks, knots, bulges or air loss always require tire removal and expert inspection. Never perform a temporary repair or use an innertube as a substitute for a proper repair. Only qualified persons should repair tires.

Don’t Attempt To Mount Your Own Tires

Serious injury may result from explosion of tire/rim assembly due to improper mounting procedures. Follow tire manufacturer’s instructions and match tire diameter to rim diameter. Mount light truck radials on rims approved for radial service. Do not apply bead sealer; this can inhibit bead seating. Lubricate beads and tire rim (including tube or flap) contact surfaces. Lock assembly on mounting machine or place in safety cage. Stand back and never exceed 40 psi (275 kPa) to seat beads. Never use a volatile substance or a rubber “donut” (also known as a bead expander or “O-Ring”) to aid bead seating. Only specially trained persons should mount tires.

Don’t Mix Tires Of Different Sizes And Types On The Same Axle

For optimum handling and control, Goodyear recommends fitment of four (4) tires of the same type and size unless otherwise specified by the vehicle manufacturer.

Warning:

Before you replace your tires, always consult the vehicle owner’s manual and follow the vehicle manufacturer’s replacement tire recommendations. Vehicle handling may be significantly affected by a change in tire size or type. When selecting tires that are different from the original equipment size, see a professional installer in order to make certain that proper clearance, load-carrying capacity, and inflation pressure are selected. Never exceed the maximum load capacity and inflation pressure listed on the sidewall of the tire.

Always drive safely and obey all traffic laws. Avoid sudden, sharp turns or lane changes. Failure to follow this warning may result in loss of control of the vehicle, leading to an accident and serious injury or death. When replacing tires, you must maintain the outside diameter and load-carrying capacity of the original equipment tire. Inflation pressure may need to be adjusted to avoid overloading the tire. Consult the Tire & Rim Association Load and Inflation Tables, ETRTO or JATMA standards for correct load and inflation information.

Proper Tire Maintenance