Incorrect tire pressure is the leading cause of premature tire wear and increased fuel consumption. Learn how to find your vehicle's ideal PSI and why "cold pressure" is the only accurate measurement.
Why Pressure Matters
Your tires are the only point of contact between your vehicle and the road. Maintaining the correct pressure ensures optimal grip, shorter braking distances, and better fuel economy. Under-inflated tires create excessive heat, which can lead to a dangerous blowout at highway speeds.
Finding Your Ideal PSI
Do not look at the sidewall of the tire for the recommended pressure—that number is the "Maximum Pressure" the tire can hold, not what your car needs. Instead, check:
The "Cold Pressure" Rule
Always check your pressure when the tires are "cold"—meaning the car has been parked for at least three hours or driven less than 2km. Driving generates heat, which increases the air pressure inside the tire, giving you a false high reading.
Pro Tip: Check your spare tire every time you check your main tires. There is nothing worse than needing your spare only to find it is flat too.