Maintenance After Off-Road Driving; Appearance Care And Protection From Corrosion - Jeep Grand Cherokee Owner's Manual

two minutes for the oil to fully drain into the
transmission before rechecking the fluid level.
NOTE:
If it is necessary to check the transmission
below the operating temperature, the fluid
level should be between the two "COLD"
(lower) holes on the dipstick with the fluid at
approximately 70°F (21°C) (room tempera-
ture). If the fluid level is correctly estab-
lished at room temperature, it should be
between the "HOT" (upper) reference holes
when the transmission reaches 180°F
(82°C). Remember it is best to check the
level at the normal operating temperature.
CAUTION!
Be aware that if the fluid temperature is below
50°F (10°C) it may not register on the dipstick.
Do not add fluid until the temperature is
elevated enough to produce an accurate
reading.
7. Check for leaks. Release parking brake.
To prevent dirt and water from entering the
transmission after checking or replenishing
218
fluid, make certain that the dipstick cap is
properly reseated. It is normal for the dipstick
cap to spring back slightly from its fully seated
position, as long as its seal remains engaged in
the dipstick tube.

Maintenance After Off-Road Driving

After extended operation in mud, sand or water,
or similar dirty conditions, have your brake
discs, brake linings, and axle joints inspected
and cleaned as soon as possible. This will
prevent any abrasive material from causing
excessive wear or unpredictable braking ac-
tion.
After driving off-road, completely inspect the
underbody of your vehicle. Check the tires,
body structure, steering, suspension and ex-
haust system for damage. Check threaded
fasteners for looseness, particularly on the
chassis, drivetrain components, steering and
suspension. Retighten, if required, to torque
values specified in the Service Manual. Also
check for accumulations of vegetation or brush
that could become a fire hazard, or conceal
damage to fuel lines, brake hoses, axle pinion
seals, and propeller shafts.
CAUTION!
Under frequent heavy-duty driving conditions,
change all lubricants, and lubricate body com-
ponents, all driveline joints and steering link-
age more often than in normal service, to
prevent excessive wear.
Appearance Care and Protection
from Corrosion
Protection of Body and Paint from
Corrosion
Vehicle body care requirements vary according
to geographic locations and usage. Chemicals
that make roads passable in snow and ice, and
those that are sprayed on trees and road
surfaces during other seasons, are highly cor-
rosive to the metal in your vehicle.
The following maintenance recommendations
will enable you to obtain maximum benefit from
the corrosion resistance built into your vehicle.
What Causes Corrosion?
Corrosion is the result of deterioration or re-
moval of paint and protective coatings from
your vehicle.