A properly inflated tire is a safer, longer‑lasting tire. Use this quick guide to check and adjust your tire pressure at home—and know when to stop by Discount Tire for a free inspection or air check.
Need it done for you? Tire inspections (including an air pressure check) are free at every Discount Tire. Walk in or schedule an appointment to save time. Find a store near you.
Watch a quick refresher: How to check tire pressure and what it should be.
The correct PSI (pounds per square inch), as specified by your vehicle manufacturer, helps with: - Road safety and confident handling - Improved fuel economy - Even treadwear and longer tire life - Overall ride quality and stability
It’s especially important when towing.
Tip: Keep your own gauge in the vehicle. Public gauges and compressors are often inaccurate or poorly maintained.
Check pressure when tires are “cold” (before driving). Driving heats the air and can read higher. If you must check after driving, subtract about 3 PSI from the reading.
Look for the tire placard on the driver’s door jamb (or in your owner’s manual). Note that front and rear pressures may differ. Do not use the maximum pressure listed on the tire sidewall—that is not the recommended setting.
Make sure the cap and its rubber seal aren’t cracked or missing. Replace if needed to prevent slow leaks.
Press the gauge squarely onto the valve stem. If you hear hissing, reseat it until the hiss stops, then read the pressure. Compare to the vehicle’s recommended PSI.
Use a compressor to inflate slowly as you approach the target PSI. If overinflated, press the valve’s brass pin to release air in short bursts. Recheck with your gauge and replace the cap.
Shopping online? Here’s how availability works: - Quantity In Stock: Ready to go at your selected store. - Available as soon as [date]: We’ll source it quickly from suppliers. - Out of Stock: We can often replenish; if “Add to Cart” is active, place your order and we’ll follow up with timing. If it’s disabled, call your store for options. Learn more: Product availability at Discount Tire.