2001 TOYOTA LAND CRUISER low oil pressure

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Keep the back door and quarter
windows closed while driving. An
open or unsealed back door and
quarter windows may cause ex-
haust gases to be drawn into the
vehicle.
To allow proper operation of your
vehicle’s ventilation system, keep
the inlet grilles in front of the
windshield clear of snow, leaves,
or other obstructions.
If you smell exhaust fumes in
the vehicle, drive with the win-
dows open and the back door
closed. Have the cause immedi-
ately located and corrected.FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.
Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.
Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high −speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
Facts about engine oil
consumption

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If you are a skilled do
−it−yourself
mechanic, the Toyota service manuals are
recommended. Please be aware that do −it−yourself maintenance can affect your
warranty coverage. See ”Owner ’s Warranty
Information Booklet” or ”Owner ’s Manual
Supplement” for the details. General maintenance
Listed below are the general maintenance
items that should be performed as fre-
quently as specified. In addition to check-
ing the items listed, if you notice any
unusual noise, smell or vibration, you
should investigate the cause or take your
vehicle to your Toyota dealer or a quali-
fied service shop immediately. It is recom-
mended that any problem you notice be
brought to the attention of your dealer or
the qualified service shop for their advice.
CAUTION
Make these checks only where ade-
quate ventilation can be obtained if
you run the engine.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Tire pressure
Check the pressure with a gauge every
two weeks, or at least once a month. See
Section 7
−2 for additional information. Tire surface and wheel nuts
Check the tires carefully for cuts, damage
or excessive wear. See Section 7
−2 for
additional information. When checking the
tires, make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires according to the mainte-
nance schedule. (For scheduled mainte-
nance information, please refer to the
”Scheduled Maintenance Guide” or ”Own-
er ’s Manual Supplement”.) See Section 7 −2 for additional information.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors and back door oper-
ate smoothly and all latches lock securely.
Make sure the engine hood secondary
latch secures the hood from opening when
the primary latch is released.

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276
Oil type:
Standard differential
Hypoid gear oil API GL −5
Limited −slip differential
Hypoid gear oil for limited −slip differ-
ential API GL −5
Recommended oil viscosity: Above −18 C (0 F)
SAE 90
Below −18 C (0 F)
SAE 80W or 80W −90
CHASSIS LUBRICATION
Wheel bearings: Lithium base wheel bearing grease,
NLGI No.2
Front drive shaft thrust bushings: Synthetic oil and lithium soap base
chassis grease, NLGI No.1
Propeller shafts: Lithium base wheel bearing grease,
NLGI No.2 BRAKES
Minimum pedal clearance when depressed
with the force of 490 N (50 kgf, 110 lbf)
with the engine running, mm (in.):
116 (4.6)
Pedal free play, mm (in.): 1—6 (0.04—0.24)
Pad wear limit, mm (in.):
1.0 (0.04)
Lining wear limit, mm (in.): 1.0 (0.04)
Parking brake adjustment when pulled with
the force of 196 N (20 kgf, 44 lbf): 4—6 clicks
Fluid type: SAE J1703 or FMVSS No.116 DOT 3
STEERING
Wheel free play: Less than 40 mm (1.6 in.)
Power steering fluid type: Automatic transmission fluid DEXRON
II
or III Tires
Tire size:
P275/70R16 114S
Tire pressure, kPa (kgf/cm 2
or bar, psi):
Normal driving Front 200 (2.0, 29)
Rear 220 (2.2, 32)
Trailer towing Front 200 (2.0, 29)
Rear 240 (2.4, 35)
Wheel size: 16 8JJ
Wheel nut torque, N·m (kgf·m, ft·lbf): 131 (13.4, 96.6)
NOTE: For a complete information on tires (e.g. replacing tires or replacing
wheels), see ”Checking tire pres-
sure” through ”Aluminum wheel
precautions” in Section 7 −2.