Toyota Yaris: Fuel
Your new vehicle must use only unleaded gasoline.
To help prevent gas station mix-ups, your Toyota has a smaller fuel tank opening.
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 specifications of ASTM D4814 in the U.S.A. and CGSB 3.5-M93 in Canada.
Do not use leaded gasoline. Use of leaded gasoline will cause the three- way catalytic converter to lose its effectiveness and the emission control system to function improperly. Also, this can increase maintenance costs.
Select Octane Rating 87 (Research Octane Number 91) or higher.
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, occasionally, you may notice light knocking for a short time while accelerating or driving up hills. This is normal and there is no need for concern.
GASOLINES CONTAINING DETERGENT ADDITIVES
Toyota recommends the use of gasoline that contain detergent additives to avoid build-up of engine deposits.
However, all gasoline sold in the U.S.
contains detergent additives to keep clean and/or clean intake systems.
Automotive manufacturers in the U.S., Europe and Japan have developed a specification for quality fuel named World-Wide Fuel Charter (WWFC) that is expected to be applied world wide.
The WWFC consists of four categories that depend on required emission levels.
In the U.S., category 4 has been adopted. The WWFC improves air quality by providing for better emissions in vehicle fleets, and customer satisfaction through better vehicle performance.
CLEANER BURNING GASOLINE
Cleaner burning gasoline, including reformulated gasoline that contains oxygenates such as ethanol or MTBE is available in many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately blended reformulated gasoline. These types of gasoline provide excellent vehicle performance, reduce vehicle emissions, and improve air quality.
OXGENATES IN GASOLINE
Toyota allows the use of oxygenate blended gasoline where the oxygenate content is up to 10% ethanol or 15% MTBE. If you use gasohol in your Toyota, be sure that it has an octane rating no lower than 87.
Toyota does not recommend the use of gasoline containing methanol.
GASOLINE CONTAINING MMT
Some gasoline contain an octane enhancing additive called MMT (Methylcycropentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel containing MMT is 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 Toyota dealer for service.
In a very few cases, you may experience drivability problems caused by the particular gasoline that you are using. If you continue to have unacceptable drivability, try changing gasoline brands. If this does not rectify your problem, then consult your Toyota dealer.
Do not use gasohol other than stated above. It will cause fuel system damage or vehicle performance problems.
If driveability problems occur (poor hot starting, vaporizing, engine knock, etc.), discontinue the use.
Take care not to spill gasohol during refueling. Gasohol may cause paint damage.
FUEL TANK CAPACITY
42 L (11.1 gal., 9.2 lmp. gal.)
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