How to How to Check Tire Pressure and Inflate Tires
Proper tire pressure improves fuel economy by 3%, extends tire life by 25%, and ensures safe handling. Check monthly and before road trips.
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0 of 5 steps completedStep-by-Step Instructions
1 Step 1: Find Recommended Pressure
Mike Johnson: "Pro tip: Make sure to double-check this before moving to the next step..."
Step 1: Find Recommended Pressure
Check driver's door jamb sticker (NOT tire sidewall - that's max pressure). Lists PSI for front and rear tires, usually 32-35 PSI for passenger cars, 40-45 for trucks/SUVs. May list different pressures for front/rear.
2 Step 2: Check Tire Pressure When Cold
Mike Johnson: "Pro tip: Make sure to double-check this before moving to the next step..."
Step 2: Check Tire Pressure When Cold
Tires must be cold (not driven for 3+ hours or less than 1 mile). Remove valve stem cap. Press tire gauge firmly onto valve stem until hissing stops. Read pressure immediately. Check all four tires and spare.
Digital Tire Pressure Gauge
More accurate than analog, backlit display, 0.5 PSI accuracy
Tire Inflator with Gauge
Portable 12V compressor plugs into car outlet, built-in gauge
3 Step 3: Add Air if Needed
Mike Johnson: "Pro tip: Make sure to double-check this before moving to the next step..."
Step 3: Add Air if Needed
At gas station or with home compressor: attach air chuck to valve stem, add air in short bursts. Check pressure frequently - easy to overinflate. Most gas station compressors auto-stop at set PSI.
4 Step 4: Release Air if Overinflated
Step 4: Release Air if Overinflated
Press center pin in valve stem with back of tire gauge cap or small tool. Let air out in short bursts. Check pressure frequently. Overinflation causes harsh ride and uneven tread wear.
5 Step 5: Replace Valve Caps
Step 5: Replace Valve Caps
Screw caps back on all valve stems. Caps prevent dirt from entering and are secondary seal against air leaks. If missing, buy replacements ($2 for pack of 4).