ENGINE195
FUEL
Fuel type
Your vehicle must use only unleaded gasoline.
To help prevent gas station mixups, your Lexus has a smaller fuel tank
opening. The special nozzle on pumps with unleaded fuel will fit it, but the
larger 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/warm up three±way catalytic converter to
lose its effectiveness and the emission control system to function
improperly. Also, this can increase maintenance costs.
Octane rating
Select Octane Rating 87 (Research Octane Number 91) or higher. For
improved vehicle performance, the use of premium unleaded gasoline
with an Octane Rating of 91 (Research Octane Number 96) or higher is
recommended.
Use of unleaded fuel with an Octane Rating or Research Octane Number
lower than stated above will cause persistent heavy knocking. If it is sever\
e,
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, consu\
lt
your Lexus dealer.
However, now and then, you may notice light knocking for a short time while
accelerating or driving up hills. This is no cause for concern.
Gasolines containing detergent additives
Lexus recommends use of gasolines that contain detergent additives to
avoid build±up of engine deposits.
For further details, ask your Lexus 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
performance and better protection of your engine.
Lexus recommends the use of gasolines that meet the AAMA specification,
if available, for improved drivability and emission control system.
ENGINE
196
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.
If the use of gasolines containing MTBE causes poor drivability and/or p\
oor
fuel economy, you should stop using them.
Gasolines containing MMT
Some gasolines contain an octane±enhancing additive called MMT
(methylcyclopentadienyl manganese tricarbonyl).
Lexus does not recommend the use of gasolines that contain MMT. If fuels
containing MMT are used, your emission control system may be adversely
affected. The Malfunction Indicator Lamp on the instrument cluster may
come on. If this happens, contact your Lexus dealer for service.
Gasolines containing alcohol
Gasohol is a mixture of gasoline and ethanol. If you use gasohol in your
Lexus, be sure that it is unleaded, has an octane rating no lower than 87
and does not contain more than 10% ethanol. Lexus does not recommend
the use of gasolines containing methanol.
If you use gasoline containing methanol, use only gasoline meeting the
requirements above and also containing less than 5% methanol with
cosolvents and corrosion inhibitors for methanol.
NOTICE
Do not use gasohol other than stated above. It will cause fuel system
damage or vehicle performance problems.
If drivability problems are encountered (poor hot starting, vaporizing,
engine knock, etc.), discontinue its use.
Take care not to spill gasohol during refueling. Gasohol may cause
paint damage.
Fuel tank capacity
70 L (18.5 gal., 15.4 lmp.gal.)
FACTS ABOUT ENGINE OIL
CONSUMPTION
Functions of engine oil
Engine oil has the primary function of lubricating and cooling the inside of th\
e
engine, and plays a major role in maintaining the engine in proper working
order.
