Get INFORMATION BEFORE DRIVING YOUR TOYOTA -> Fuel Guide for Toyota Prius 4 Door Second Generation (2004-2009)

Break−in period

Fuel

Drive gently and avoid high speeds.

FUEL TYPE

Use of unleaded fuel with an octane num-

ber or rating lower than stated above will

cause persistent heavy knocking. If se-

vere, this will lead to engine damage.

Your vehicle must use only unleaded

gasoline.

Your vehicle does not need an elaborate

break−in. But following a few simple tips

for the first 1000 km (600 miles) can add

to the future economy and long life of

your vehicle:

To help prevent gas station mixups, your

Toyota has a smaller fuel tank opening.

The special nozzle on pumps with un-

leaded fuel will fit it, but the larger stan-

dard nozzle on pumps with leaded gas will

not.

If your engine knocks...

If you detect heavy knocking even when

using the recommended fuel, or if you

ꢀ Avoid full−throttle acceleration when

hear steady knocking while holding

starting and driving.

steady speed on level roads, consult your

Toyota dealer.

ꢀ Avoid racing the hybrid engine.

minimum, the gasoline you use

ꢀ Try to avoid hard stops during the first

should meet the specifications of ASTM

D4814 in the U.S.A. and CGSB 3.5−M93

in Canada.

However, occasionally, you may notice

light knocking for a short time while accel-

erating or driving up hills. This is normal

and there is no need for concern.

300 km (200 miles).

NOTICE

GASOLINE CONTAINING DETERGENT

ADDITIVES

Do not use leaded gasoline. Use of

leaded gasoline will cause the three−

way catalytic converter to lose its ef-

fectiveness and the emission control

system to function improperly. Also,

this can increase maintenance costs.

Toyota recommends the use of gasoline

that contains 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.

OCTANE RATING

Select unleaded gasoline with an Oc-

tane Rating of 87 (Research Octane

Number 91) or higher.

318

QUALITY GASOLINE

OXYGENATES IN GASOLINE

GASOLINE QUALITY

Automotive manufacturers in the U.S.,

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.

In a very few cases, you may experience

driveability problems caused by the partic-

ular gasoline that you are using. If you

continue to have unacceptable driveability,

try changing gasoline brands. If this does

not rectify your problem, then consult your

Toyota dealer.

Europe and Japan have developed

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 le-

vels. In the U.S., category 4 has been

adopted. The WWFC improves air quali-

ty by providing for better emissions in

vehicle fleets, and customer satisfaction

through better vehicle performance.

Toyota does not recommend the use of

gasoline containing methanol.

NOTICE

GASOLINE CONTAINING MMT

z Do not use gasohol other than

stated above. It will cause fuel sys-

tem damage or vehicle performance

problems.

Some gasoline contain an octane en-

hancing additive called MMT (Methylcy-

clopentadienyl Manganese Tricarbonyl).

CLEANER BURNING GASOLINE

Toyota does not recommend the use of

gasoline that contains MMT. If fuel con-

taining MMT is used, your emission con-

trol system may be adversely affected.

The Malfunction Indicator Lamp on the in-

strument cluster may come on. If this hap-

pens, contact your Toyota dealer for ser-

vice.

Cleaner burning gasoline, including re-

formulated gasoline that contains oxy-

genates such as ethanol or MTBE is

available in many areas.

z If drivability problems are encoun-

tered (poor hot starting, vaporizing,

engine knock, etc.), discontinue its

use.

Toyota recommends the use of cleaner

burning gasoline and appropriately blended

reformulated gasoline. These types of gas-

oline provide excellent vehicle perfor-

mance, reduce vehicle emissions, and im-

prove air quality.

z Take care not to spill gasohol dur-

ing refueling. Gasohol may cause

paint damage.

319

INFORMATION BEFORE DRIVING YOUR TOYOTA -> Fuel for Your Toyota Prius 4 Door Second Generation (2004-2009)

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