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TIRE INFLATION TABLES
FOR HIGHWAY SERVICE
The following
notes
apply to th
e
adj acent chart.
PASSENGER CAR TYPE
TIRES
1.
Tire inflation pressures m ay increase as much
as
6 pounds
per
squ
are inch
(psi) when hot.
2. For
continuous high speed operation
(over
75 MPH) increase tire
inflat ion pressures 4 pounds
per
square inch over the recom-
mended
pressures up to a maximum of 32
pou
nds per square
inch
cool
far 4 ply rating tires,
or
40 pounds
per
square inch
cool
for
8
ply rating tires. When the 4
psi
pressure adjustment for
sustained high
speed with maximum vehicle load wou ld require
inflation pressures above the maximum
allowable,
speed must
be limited to 75 miles
per hour.
3.
Cool tire
inflation
pressure: after vehicle has been inoperative
for
3
hours or more or driven less than 1
mile.
Hot ti re
inflation
pressure: afler veh icle has been driven 10 miles
or more
at
60·70 miles per hou
r.
4.
Vehicles with luggage racks do not have a vehicle load limit
greater
tha
n
that
specified.
5.
W hen towing
trailers,
the allowable passenger an
d
ca rgo load
must be reduced by an amount equal to the trailer tongue load
on
the tra iler hitch
.
'
NOTE:
4PR~
Load
Range B
6PR~
Load
Range C
8PR~
Load
Range D
Gross Ve hicle
MODEL
W
e
ight or M ax.
load
Capacity
( Inc
l.
Tire
Ply
Tire Size
PR (Ply Rating)
Passengers)
ALL EX CEPT
05, 06,
16 MOOELS
(PANELS,
STEP VANS & SUBURBANS)
CS/CE 10
4400
7.75-15
8PR
'
D
KS/ KE10
4600
8.15-15
4PR
'
S
6.50-16
6PR'C
CS/C ElO
4800
8.15-15
8PR'
D
KS/KElO
5300
PA
N
ELS
&
STEP VANS
CS/CE10
4400
7.75- 15
8PR'D
KS/ KE10
4600
8.15-15
4PR'
B
PS
4600
6.50·16
6PR"C
CS/C
E
10
4800
8.15-15
8PR
'
D
KS/
KEl
O
5300
SUBURBANS
7.75-15
8PR
'
D
CS/CE 1 to 3 Pass. (1
Seat)
8.15-15
4PR'
B
+
300 Ibs_ Cargo
6.50-16
6PR
'C
1 to 5 Pass. (1 seat)
+
600
Ibs. C
argo
8.15-15
8P R'
D
1 to 9 Pass. (3 Seat)
• 56 •
Infiat ion
Pre ssures
PSI (Coo l)
Front
/
Rear
30
34
30
30
30
30
30
34
30
38
30
31
30
36
30
38
30
38
30
31
30
36
30
38
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