catalytic converter MAZDA MODEL 3 4-DOOR 2015 Owners Manual

3–27
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 min\
imum.
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 stat\
ion pumps.
Fuel with a rating lower than 87 octane (91 RON) could cause the emiss\
ion control system
to lose effectiveness. It could also cause engine knocking and serious engine dama\
ge.
CAUTION


3–28
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 e\
xhaust emissions
requirements.
WARNING
Never park over or near anything fl ammable:
Parking over or near anything fl ammable, 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 fl ammable. A resulting fi re 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.