catalytic converter TOYOTA LAND CRUISER 1999 Owners Manual

New L/C100(U)151
Part 2
INFORMATION
BEFORE DRIVING
YOUR TOYOTA
Off- road vehicle precautions
Break- in period
Fuel
Operation in foreign countries
Three- way catalytic converter
Engine exhaust cautions
Facts about engine oil
consumption
Iridium- tipped spark plugs
Brake system
Brake pad wear limit indicators
Luggage stowage precautions
Rear step bumper
Limited- slip differential
Your Toyota's identification
Theft prevention labels
Suspension and chassis
Types of tires
Off- road vehicle precautions
This vehicle is one of the class of ve-
hicles which have higher ground clear-
ance and narrower tread in relation to
the height of their center of gravity to
make them capable of performing in a
wide variety of off- road applications.
Specific design characteristics give it a
higher center of gravity than ordinary
cars. An advantage of the higher
ground clearance is a better view of the
road allowing you to anticipate prob-
lems. It is not designed for cornering
at the same speeds as conventional
two- wheel drive vehicles any more than
low- slung sports cars are designed to
perform satisfactorily under off- road
conditions.

New L/C100(U)153
Fuel
FUEL TYPE
Your new vehicle must use only un-
leaded gasoline.
To help prevent gas station mix- ups, your
Toyota has a new smaller fuel tank open-
ing. The special nozzle on pumps with
unleaded fuel will fit it, but the larger
standard nozzle on pumps with leaded gas
will not.
At a minimum, the gasoline you use
should meet the specifications of ASTM
D4814 in the U.S.A. and CGSB 3.5- M93
in Canada.
NOTICE
Do not use leaded gasoline. Use of
leaded gasoline will cause the three-way catalytic converter to lose its ef-
fectiveness, the emission control sys-
tem to function improperly, and dam-age to the engine. Also, this can in-crease maintenance costs.
OCTANE RATING
Select Octane Rating 91 (Research Oc-
tane Number 96) or higher for optimum
engine performance. However, if such
premium type cannot be obtained, you
may temporarily use unleaded gasoline
with an Octane Rating as low as 87
(Research Octane Number 91).
Use of unleaded gasoline with an octane
rating or research octane number lower
than stated above will cause persistent
heavy knocking. If it is severe, this will
lead to engine damage.
If your engine knocks...
If you detect heavy knocking even when
using the recommended fuel, or if you
hear steady knocking while holding a
steady speed on level roads, consult your
Toyota dealer.
However, now and then, you may notice
light knocking for a short time while accel-
erating or driving up hills. This is no need
of concern. GASOLINES CONTAINING DETERGENT
ADDITIVES
Toyota recommends use of gasolines
that contain detergent additives to
avoid build- up of engine deposits.
For further details, ask your Toyota dealer
or a local gasoline retailer.
IMPROVED GASOLINES
The American Automobile Manufacturers
Association (AAMA) has developed a
specification of improved gasolines. The
AAMA specification offers optimal fuel
information for better vehicle perfor-
mance and better protection of your en-
gine.
Toyota recommends the use of gasolines
that meet the AAMA specification, if avail-
able, for improved driveability and emis-
sion control system.
GASOLINES CONTAINING MTBE
Gasolines that contain MTBE (Methyl
Tertiary- Butyl Ether) are available in the
market. If you use a gasoline mixed
with MTBE, make certain that it does
not contain more than 15% of MTBE.

New L/C100(U)155
Three- way catalytic converter
The three- way catalytic converter is the
emission control devices installed in
the exhaust system.
Its purpose is to reduce pollutants in the
exhaust gas.
CAUTION

Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.
Do not idle or park your vehicle
over anything that might burn easi-
ly such as grass, leaves, paper or
rags.
NOTICE
A large amount of unburned gases
flowing into the three- way catalyticconverter may cause it to overheat and create a fire hazard. To prevent
this and other damage, observe thefollowing precautions:
Use only unleaded gasoline.
Do not drive with an extremely lowfuel level; running out of fuel could
cause the engine to misfire, creat-ing an excessive load on the three- way catalytic converter.
Do not allow the engine to run atidle speed for more than 20 min-
utes.
Avoid racing the engine.
Do not push- start or pull- start yourvehicle.
Do not turn off the ignition whilethe vehicle is moving.
Keep your engine in good runningorder. Malfunctions in the engine
electrical system, electric ignitionsystem/distributor ignition system
or fuel system could cause an ex-tremely high three- way catalytic
converter temperature.
If the engine becomes difficult to
start or stalls frequently, take yourvehicle in for a check- up as soon
as possible. Remember, your Toyotadealer knows your vehicle and itsthree- way catalytic converter sys-
tem best.