Dodge RAM TRUCK 1500 1995 Service Manual page 1614

22 - 2 WHEELS AND TIRES B R
METRIC TIRE SIZES
P 20S / 75 R 15
Fig. 1 Tire Size Identification
CLEANING OF TIRES
Steam cleaning may be used for cleaning.
DO NOT use gasoline or wire brusl for cleaning.
DO NOT use mineral oil or an oil-based solvent.
P1ESSURE GAUGES
High-quality, dial-type, air-pressure gauges are rec­
ommended. After checking with the gauge, replace
valve cap finger tight.
TIRE INFLATION PRESSURES
CAUTION: Models 2500 and 3500 now use a high
pressure snap-in tire valve. Do not substitute with
other tire valves. The Tire and Rim industry desig­
nations are TR413 for Sow pressure and 600HP for
high pressure.
Under inflation (Fig. 2) causes rapid shoulder wear
and tire flexing.
Over inflation (Fig. 3) causes rapid center wear and
loss of the tire's ability to cushion shocks.
Improper inflation can cause;
• Uneven wear patterns
• Reduced tread life
• Reduced fuel economy
• Unsatisfactory ride
• Cause the vehicle to drift
Fig. 2 Under Inflation Wear
. Fig. 3 Over Inflation Wear
Refer to the Tire Inflation Pressure brochure for in­
formation regarding proper tire inflation. This infor­
mation is provided with the Owner's Manual.
This pressure has been carefully selected to provide
for safe vehicle operation. Tire pressure should be
checked
c o l d
once a month. Tire pressure decreases
when the outside temperature drops.
Inflation pressures specified on the placards are al­
ways
c o l d i n f l a t i o n p r e s s u r e .
Cold inflation pres­
sure is obtained after the vehicle has not been
operated for at least 3 hours. Tire inflation pressures
may increase from 2 to 6 pounds per square inch
(psi) during operation. Do n o t reduce this normal
pressure build-up.
Vehicles loaded to the maximum capacity should
not be driven at continuous speeds above 75 mph
(120 km/h).
WARNING: OVER OR UNDER INFLATED T I R E S CAN
A F F E C T VEHICLE HANDLING AND WAY RESULT IN
L O S S OF VEHICLE CONTROL.