Pontiac G8 Occupant and Cargo Weight, When to Check, How to Check, Recommended Cold Tire Inflation

		Vehicle Service and Care			9-47
		Recommended Cold Tire Inflation
	Occupant and Cargo Weight:		Occupant and Cargo Weight:
Tire Size	573 lbs (260 kg) or Less		Up to 917 lbs (416 kg)
			(Vehicle Capacity Weight)
	Front Tires	Rear Tires	Front Tires	Rear Tires
P245/45R18 96V	33 psi (230 kPa)	33 psi (230 kPa)	36 psi (250 kPa)	39 psi (270 kPa)
245/45R18 96V	36 psi (250 kPa)	36 psi (250 kPa)	36 psi (250 kPa)	39 psi (270 kPa)
245/40R19 94W	36 psi (250 kPa)	36 psi (250 kPa )	36 psi (250 kPa)	39 psi (270 kPa)
T155/80R17 111M	60 psi (420 kPa)	60 psi (420 kPa)	60 psi (420 kPa)	60 psi (420 kPa)
(Compact Spare)

When to Check

Check your tires once a month or more.

Do not forget the compact spare tire, if your vehicle has one. It should be at 60 psi (420 kPa). For more information about the vehicle’s compact spare tire, see Compact Spare Tire on page 9-79.

How to Check

Use a good quality pocket-type gage to check tire pressure. You can’t tell if your tires

are properly inflated simply by looking at them. Radial tires may look properly inflated even when they’re underinflated. Check the tire’s inflation pressure when the tires are cold. Cold means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km).

Remove the valve cap from the tire valve stem. Press the

tire gage firmly onto the valve to get a pressure measurement.

If the cold tire inflation pressure matches the recommended pressure on the Tire and Loading Information label, no further adjustment is necessary. If the inflation pressure is

low, add air until you reach the recommended amount.