2013-2016 Mazda Cx-5 SUV Fuel and Emission User Manual
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Fuel and Emission for Your Mazda Cx-5 SUV First Generation (2013-2016)

Before Driving  
Fuel and Emission  
Fuel and Engine Exhaust Precautions  
qFuel 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.  
Your Mazda 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) will negatively affect the emission  
control system performance and could also cause engine knocking and serious engine  
damage.  
CAUTION  
Ø 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.  
Ø Your vehicle can only use oxygenated fuels containing no more than 10 % ethanol  
by volume. Damage to your 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.  
Ø 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 Mazda warranty.  
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Gasohol containing more than 10 % ethanol.  
Gasoline or gasohol containing methanol.  
Leaded fuel or leaded gasohol.  
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3-23  
Before Driving  
Fuel and Emission  
qEmission Control System  
Your vehicle is equipped with an emission control system (the catalytic converter is part of  
this system) that enables your vehicle to comply with existing exhaust emissions  
requirements.  
WARNING  
Never park over or near anything flammable:  
Parking over or near anything flammable, such as dry grass, is dangerous. Even with  
the engine turned off, the exhaust system remains very hot after normal use and  
could ignite anything flammable. A resulting fire 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.  
Ø USE ONLY UNLEADED FUEL.  
Ø Do not drive your Mazda with any sign of engine malfunction.  
Ø Do not coast with the ignition switched off.  
Ø Do not descend steep grades in gear with the ignition switched off.  
Ø Do not operate the engine at high idle for more than 2 minutes.  
Ø Do not tamper with the emission control system. All inspections and adjustments  
must be made by a qualified technician.  
Ø Do not push-start or pull-start your vehicle.  
NOTE  
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Under 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.  
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While 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. Your vehicle has a self-  
checking device and it operates while the engine is off.  
3-24  
Before Driving  
Fuel and Emission  
qEngine 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 your 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 your 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.  
3-25  
Before Driving  
Fuel and Emission  
Fuel-Filler Lid and Cap  
CAUTION  
(U.S.A. and Canada)  
WARNING  
Always use only a genuine Mazda  
fuel-filler cap or an approved  
equivalent, available at an  
When removing the fuel-filler 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-filler cap is  
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.  
removed too quickly.  
qFuel-Filler Lid  
Before refueling, stop the engine, and  
always keep sparks and flames away  
from the filler neck:  
To open, pull the remote fuel-filler lid  
release.  
To close, press the fuel-filler lid until it  
locks securely.  
Fuel vapor is dangerous. It could be  
ignited by sparks or flames causing  
serious burns and injuries.  
Additionally, use of the incorrect fuel-  
filler cap or not using a fuel-filler cap  
may result in 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 off automatically:  
Continuing to add fuel after the fuel  
pump nozzle has shut off  
automatically is dangerous because  
overfilling the fuel tank may cause  
fuel overflow or leakage. Fuel  
overflow and leakage could damage  
the vehicle and if the fuel ignites it  
could cause a fire and explosion  
resulting in serious injury or death.  
qFuel-Filler Cap  
To remove the fuel-filler cap, turn it  
counterclockwise.  
Attach the removed cap to the inner side  
of the fuel lid.  
3-26  
Before Driving  
Fuel and Emission  
To close the fuel-filler cap, turn it  
clockwise until a click is heard.  
Open  
Close  
CAUTION  
(U.S.A. and Canada)  
If the check fuel cap warning light  
illuminates, the fuel-filler cap may  
not be properly installed. If the  
warning light illuminates, park your  
vehicle safely off the right-of-way,  
remove the fuel-filler 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 off) 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.  
3-27  

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