7-22
Maintenance
MAINTENANCE UNDER SEVERE USAGE CONDITIONS
The following maintenance procedures must be performed more frequently,
when driving under severe conditions. Refer to the below chart for the appro-
priate maintenance schedule.
R : Replace
I : Inspect, and, if necessary, clean, adjust, repair or replace.
SEVERE DRIVING CONDITIONS
A - Repeatedly driving a short distance of less than 5 miles (8 km) at a normal temperature or of lessthan 10 miles (16 km) at a freezing temperature
B - Extensively idling or slowly driving for a long distance
C - Driving on a rough, dusty, muddy, unpaved, graveled or salt-spread roads
D - Driving in areas where salt or other corrosive materials are abundant or at a freezing temperature
E - Driving in sandy areas
F - Driving in the heavy traffic area at a temperature over 90°F (32°C)
G- Driving on a slope or a mountainous area
H - Towing a trailer, or using a camper or roof rack
I - Driving as a patrol car, taxi, other commercial usages or vehicle towing
J - Driving at a speed over 106 mph (170 km/h)
K - Frequent stopping and starting
MAINTENANCE ITEMMAINTENANCE
OPERATIONMAINTENANCE INTERVALSDRIVING
CONDITION
ENGINE OIL AND FILTERREVERY 3,750 MILES
(6,000 KM) OR 6 MONTHSA, B, C, D, E,
F, G, H, I, J, K
AIR CLEANER FILTERIMORE FREQUENTLYC, E
SPARK PLUGSRMORE FREQUENTLYA, B, H, I, K
AUTOMATIC TRANSMISSION
FLUIDREVERY 60,000 MILES
(96,000 KM) A, C, D, E, F,
G, H, I
FRONT BRAKE DISC/PADS,
CALIPERSIMORE FREQUENTLYC, D, G, H
REAR BRAKE DISC/PADSIMORE FREQUENTLYC, D, G, H
PARKING BRAKEIMORE FREQUENTLYC, D, G, H
STEERING GEAR BOX,
LINKAGE & BOOTS/
LOWER ARM BALL JOINT,
UPPER ARM BALL JOINT
IMORE FREQUENTLYC, D, E, F, G,
H, I
DRIVE SHAFTS AND BOOTSIEVERY 7,500 MILES
(12,000 KM) OR 6 MONTHSC, D, E, F, G,
H, I, J
REAR DIFFERENTIAL OILREVERY 80,000 MILES
(128,000 KM)C, G, H, I, J
CLIMATE CONTROL
AIR FILTER (FOR EVAPORA-
TOR AND BLOWER UNIT)RMORE FREQUENTLYC, E
PROPELLER SHAFTIEVERY 7,500 MILES
(12,000 KM) OR 6 MONTHSC, E
7-53
Maintenance07
Load Index:The numerical index,
on a scale of 1 to 279, to indicate a
tire loading capacity.
Maximum Inflation Pressure: The
maximum air pressure to which a
cold tire may be inflated. The maxi-
mum air pressure information is
specified on a tire side wall.
Maximum Load Rating: The load-
ing capacity for a tire, which is inflat-
ed to the maximum.
Maximum Loaded Vehicle Weight:
The sum of curb weight; accessory
weight; vehicle capacity weight; and
production options weight.
Normal Occupant Weight: The mul-
tiplication of the designated occu-
pant seat number by 150 pounds (68
kg).
Occupant Distribution: Designated
seating positions.
Outward Facing Sidewall: The side
of a asymmetrical tire that has a par-
ticular side that faces outward when
mounted on a vehicle. The outward
facing sidewall bears white lettering
or bears manufacturer, brand, and/or
model name molding that is higher or
deeper than the same moldings on
the inner facing sidewall.
Passenger (P-Metric) Tire: This tire
is for a passenger vehicle, a light
truck or a multipurpose vehicle.
Ply: A layer of rubber-coated parallel
cords
Pneumatic Tire: A mechanical
device made of rubber, chemicals,
fabric and steel or other materials,
that, when mounted on an automo-
tive wheel, provides the traction and
contains the gas or fluid that sustains
the load. Production Options Weight:
The
combined weight of installed regular
production options weighing over 5
lb.(2.3 kg) in excess of the standard
items which they replace, not previ-
ously considered in curb weight or
accessory weight, including heavy
duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim.
Recommended Inflation Pressure:
Vehicle manufacturer's recommend-
ed pressure to inflate a tire. This is
specified on a tire placard.
Radial Ply Tire: A pneumatic tire in
which the ply cords that extend to the
beads are laid at 90 degrees to the
centerline of the tread.
Rim: A metal support for a tire and
upon which the tire beads are seat-
ed.
Sidewall: The portion of a tire
between the tread and the bead.
Speed Rating: An alphanumeric
code to indicate the maximum speed
to which a tire can operate.
Traction: The friction between a tire
and a road surface. The amount of
grip provided.
Tread: The contacting portion of a
tire with the road.
Treadwear Indicators: This is a nar-
row band, sometimes called "wear
bars." This appears across the tread,
when only 2/32 inch of tread
remains.
UTQGS: The Uniform Tire Quality
Grading Standards is the information
of traction, temperature and tread
abrasion. A rating is measured by a
tire manufacturer in accordance with
the government-specified testing
procedure. The rating information is
specified on the tire side wall.
