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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.
Your Mazda will perform best with fuellisted in the table.
Fuel Octane Rating
*
(Anti-knock index)
Regular unleaded fuel 87 [ (R+M)/2method] or above (91 RONor above)
* U.S. federal law requiresthat octaneratings be posted on gasolinestation pumps.
Fuel with a rating lower than87 octane(91 RON) could cause theemission controlsystem to lose effectiveness. It
could also causeengine knockingand 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. Never add cleaning agents other than those
specified by Mazda. Other cleaning agents and additives may damage the system.
Consult an Authorized Mazda Dealer.
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%. Gas oline 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.
l
Gasohol containing more than 10% ethanol.
l
Gasoline or gasohol containing methanol.
l
Leaded fuel or leaded gasohol.
4-2
BeforeDriving YourMazd a
Fuel and Engine Exhaust Precautions
Mazda6_8AS3-EA-09E_Edition1 Page140
Wednesday, May 13 2009 2:24 PM
Form No.8AS3-EA-09E