Wheels And Tires; Recommended Tire Inflation Pressures - Pontiac Grand Prix Service Manual

WHEELS AND TIRES
CONTENTS OF THIS SECTION
SUBJECT PAGE SUBJECT PAGE
Minor Repairs.
. . . . . . . . . . . . . . . . .
10-2
Torque Specifications
. . . . . . . . . . . . . .
10-5
Specifications
. . . . . . . . . . . . . . . . . .
10-5
Tire Usage Chart.
. . . . . . . . . . . . . . .
10-5
RECOMMENDED TlRE INFLATION PRESSURES
(Pounds Per Square Inch Cool)
*If equipped with bucket
seats,
load limit is 950 Ibs. (5 passengers-2 front, 3 rear, and 200 Ibs. luggage).
MODELS
All Except
Station Wagons
Station
Wagons
----------
PONTIAC
----- ------
TEMPEST
NOTES ON CHART:
3. Cold tire inflation pressure: after vehicle has been
inoperative for 3 hours or more, or driven less than 1
1. Tire inflation pressures may increase as much as 6
mile. Hot tire inflation pressure: after vehicle has been
pounds per square inch (psi) when hot.
driven 10 miles or more at 60-70 miles per hour.
2. For continuous
high speed operation (over 75 mph)
4. Station Wagon loads should be distributed as far
increase tire inflation pressures 4 pounds per square
forward as possible.
inch over the recommended pressures up to a maxi-
mum of 32 pounds per square inch cold for 4 ply
5. Vehicles with luggage racks do not have a vehicle
rating
tires, or
40 pounds per square inch for 8 ply
load limit greater than s w ~ e d .
rating
tires.
Sustained speeds above 75 mph are not
recommended when the 4 pounds
per
square inch 6. When towing trailers, the allowed passenger and
adjustment would
require
pressures greater than cargo load must be reduced by an amount equal to the
maximum stated above. trailer tongue load on the trailer hitch.
TIRE PLY
4 ply rating-2 ply
4 ply rating-2 ply
8 ply r a t i n g 4 ply
4 ply rating-2 ply
STANDARD INFLATION
FOR ALL LOADS
INCLUDINQ FULL RATED
1 to 6 passengers
+200 lbs. luggage
(1 100 lbs. load)*
Front Rear
24 lbs. 28 lbs.
1 to 6 passengers
+
300 lbs. luggage
(1200 lbs. load)
Front Rear
24 lbs. 32 Ibs.
26 lbs. 36 lbs.
241bs. 32 lbs.
OPTIONAL INFLATION
,
FOR REDUCED LOADS
1 to 5 passengers
(750 Ib. load)
A
Front Rear
24 lbs. 24 lbs.
1 to 5 passengers
(750 Ib. load)
Front Rear
- -
- -
24 lbs. 28 lbs.