Plymouth Gran Fury 1980 Operating Instructions And Product Information page 31

When using the air conditioner in extremely heavy traffic in hot
weather, especially when towing a trailer, additional engine cool-
ing may be required. If this situation is encountered, operate the
transmission in a lower gear. Wh en stopped in heavy traffic, it
may be necessary to shift into NEUTRAL and depress the ac-
celerator slightly for fast idle operation.
Winter Operation
When operating the system during the winter mon ths, make sure
the air intake, which is located di rectly in front of the windsh ield,
is free of ice, slush, or other obstructions.
Tire and Vehicle Loading
Proper tire inflation p ressure is essential to the safe a nd satisfac-
tory operation of your vehicle. Three primary areas are affected
by improper tire pressure:
1.
Safety - Under-inflation increases tire flexing and can result in
tire failure. Over- inflation results in a tire losing its ability to
cushion shock. Objects on the road and chuck holes could cause
tire injury that may result in tire failure.
2. Economy - Improper inflation pressures can cause uneven
wear patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life, resulting in a need for earlier
tire replacement. Under-inflation also increases tire rolling resis-
tance and results in higher fuel consumption .
3 . Ride Co mfort and Vehicle Stability - Proper tire inflation
contributes to a comfortable ride. Over-inflation produces a jar-
ring and uncomfortable ride. Both under-inflation and over-
inflation affect the stability of the car and can produce a feeling of
sluggish response or over-responsiveness.
Unequal tire pressures can cause erratic and unpred ictable steer-
ing response.
Tire Inflation Pressures
The proper tire pressure fo r your vehicle is listed on a placard
attach ed to the left fro n t door latch pillar. The pressure sho uld be
checked and adjusted at least once every month. Check more
often if subjected to a wide range of outdoor temperatures, as tire
pressures vary with tern perature changes. Inflation pressures
specified on the placard are always cold inflation pressure. Cold
in flatio n pressure is defined as the tire pressure after the vehicle
has not been driven for at least 3 hours, or d riven less than a mile
after a 3- hour period. The cold inflation pressure must not exceed
the maximum values molded into the tire wall.
Tire pressures may increase from 13 to 40 kPa (2 to 6 psi) during
operation. Do NOT reduce this normal p ressure build- up.
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