Get Before Driving -> Fuel and Emission Guide for Mazda 3 4 Door Third Generation (2014-2018)

Before Driving

Fuel and Emission

Fuel and Engine Exhaust Precautions

Fuel Requirements

Vehicles with catalytic converters or oxygen sensors must use ONLY UNLEADED FUEL,

which will reduce exhaust emissions and keep spark plug fouling to a minimum.

This vehicle will perform best with fuel listed in the table.

Fuel

Octane Rating^*(Anti-knock index)

Regular unleaded fuel

87 [(R M)/2 method] or above (91 RON or above)

ꢀ*ꢀ

U.S. federal law requires that octane ratings be posted on gasoline station pumps.

Fuel with a rating lower than 87 octane (91 RON) could cause the emission control system

to lose effectiveness. It could also cause engine knocking and serious engine damage.

CAUTION

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USE ONLY UNLEADED FUEL.

Leaded fuel is harmful to the catalytic converter and oxygen sensors and will lead to

ꢀ

deterioration of the emission control system and or failures.

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This vehicle can only use oxygenated fuels containing no more than 10 % ethanol by

volume. Damage to the vehicle may occur when ethanol exceeds this recommendation, or

if the gasoline contains any methanol. Stop using gasohol of any kind if your vehicle engine

is performing poorly.

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Never add fuel system additives, otherwise the emission control system could be damaged.

Consult an Authorized Mazda Dealer for details.

Gasoline blended with oxygenates such as alcohol or ether compounds are generally

referred to as oxygenated fuels. The common gasoline blend that can be used with your

vehicle is ethanol blended at no more than 10 %. Gasoline containing alcohol, such as

ethanol or methanol, may be marketed under the name "Gasohol".

Vehicle damage and drivability problems resulting from the use of the following may not be

covered by the warranty.

ꢀyꢀ

Gasohol containing more than 10 % ethanol.

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Gasoline or gasohol containing methanol.

ꢀyꢀ

Leaded fuel or leaded gasohol.

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Before Driving

Fuel and Emission

Emission Control System

This vehicle is equipped with an emission control system (the catalytic converter is

part of this system) that enables the vehicle to comply with existing exhaust emissions

requirements.

WARNING

Never park over or near anything ꢀammable:

Parking over or near anything ꢀammable, such as dry grass, is dangerous. Even with the

engine turned oꢁ, the exhaust system remains very hot after normal use and could ignite

anything ꢀammable. A resulting ꢂre could cause serious injury or death.

CAUTION

Ignoring the following precautions could cause lead to accumulate on the catalyst inside

the converter or cause the converter to get very hot. Either condition will damage the

converter and cause poor performance.

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USE ONLY UNLEADED FUEL.

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Do not drive your Mazda with any sign of engine malfunction.

ꢀ¾ꢀ

Do not coast with the ignition switched oꢁ.

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Do not descend steep grades in gear with the ignition switched oꢁ.

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Do not operate the engine at high idle for more than 2 minutes.

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Do not tamper with the emission control system. All inspections and adjustments

must be made by a qualiꢂed technician.

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Do not push-start or pull-start your vehicle.

NOTE

^ꢀyꢀUnder U.S. federal law, any modiﬁcation to the original-equipment emission control

system before the ﬁrst sale and registration of a vehicle is subject to penalties. In some

states, such modiﬁcation made on a used vehicle is also subject to penalties.

^ꢀyꢀWhile the engine is off, the sound of a valve opening and closing can be heard at the rear

of the right side of the vehicle, however this does not indicate an abnormality. The vehicle

has a self-checking device and it operates while the engine is off.

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Before Driving

Fuel and Emission

Engine Exhaust (Carbon monoxide)

WARNING

Do not drive your vehicle if you smell exhaust gas inside the vehicle:

Engine exhaust gas is dangerous. This gas contains carbon monoxide (CO), which is

colorless, odorless, and poisonous. When inhaled, it can cause loss of consciousness and

death. If you smell exhaust gas inside the vehicle, keep all windows fully open and contact

an Authorized Mazda Dealer immediately.

Do not run the engine when inside an enclosed area:

Running the engine inside an enclosed area, such as a garage, is dangerous. Exhaust

gas, which contains poisonous carbon monoxide, could easily enter the cabin. Loss of

consciousness or even death could occur.

Open the windows or adjust the heating or cooling system to draw fresh air when

idling the engine:

Exhaust gas is dangerous. When the vehicle is stopped with the windows closed and

the engine running for a long time even in an open area, exhaust gas, which contains

poisonous carbon monoxide, could enter the cabin. Loss of consciousness or even death

could occur.

Clear snow from underneath and around your vehicle, particularly the tail pipe, before

starting the engine:

Running the engine when a vehicle is stopped in deep snow is dangerous. The exhaust

pipe could be blocked by the snow, allowing exhaust gas to enter the cabin. Because

exhaust gas contains poisonous carbon monoxide, it could cause loss of consciousness or

even death to occupants in the cabin.

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Before Driving

Fuel and Emission

Fuel-Filler Lid and Cap

CAUTION

Always use only a genuine Mazda fuel-

ꢂller cap or an approved equivalent,

available at an Authorized Mazda

Dealer. The wrong cap can result in

a serious malfunction of the fuel and

emission control systems. It may also

cause the check engine light in the

instrument cluster to illuminate.

WARNING

When removing the fuel-ꢁller cap,

loosen the cap slightly and wait for any

hissing to stop, then remove it:

Fuel spray is dangerous. Fuel can

burn skin and eyes and cause illness

if ingested. Fuel spray is released

when there is pressure in the fuel tank

and the fuel-ꢂller cap is removed too

quickly.

Fuel-Filler Lid

To open, pull the remote fuel-ﬁller lid

release.

Before refueling, stop the engine, and

always keep sparks and ꢀames away

from the ꢁller neck:

Fuel vapor is dangerous. It could be

ignited by sparks or ꢀames causing

serious burns and injuries.

Additionally, use of the incorrect fuel-

ꢂller cap or not using a fuel-ꢂller cap

may result in a fuel leak, which could

result in serious burns or death in an

accident.

Remote fuel-filler

lid release

Do not continue refueling after the fuel

pump nozzle shuts oꢂ automatically:

Continuing to add fuel after the

fuel pump nozzle has shut oꢁ

automatically is dangerous because

overꢂlling the fuel tank may cause

fuel overꢀow or leakage. Fuel overꢀow

and leakage could damage the vehicle

and if the fuel ignites it could cause a

ꢂre and explosion resulting in serious

injury or death.

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Before Driving

Fuel and Emission

Fuel-Filler Cap

To remove the fuel-ﬁller cap, turn it

counterclockwise.

Attach the removed cap to the inner side

of the fuel lid.

To close the fuel-ﬁller cap, turn it

clockwise until a click is heard.

Open

Close

CAUTION

If the check fuel cap warning light

illuminates, the fuel-ꢂller cap may not

be properly installed. If the warning

light illuminates, park your vehicle

safely oꢁ the right-of-way, remove the

fuel-ꢂller cap and reinstall it correctly.

After the cap has been correctly

installed, the fuel cap warning light

may continue to illuminate until a

number of driving cycles have been

completed. A drive cycle consists of

starting the engine (after four or more

hours with the engine oꢁ) and driving

the vehicle on city and highway roads.

Continuing to drive with the check

fuel cap warning light illuminated

could cause the check engine light to

illuminate as well.

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Before Driving -> Fuel and Emission for Your Mazda 3 4 Door Third Generation (2014-2018)

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