Fuel And Engine Exhaust Precautions; Fuel Requirements - Mazda 2005 Miata MX-5 Owner's Manual

MX-5 Miata_8T72-EA-04G_Edition1 Page80
Wednesday, June 9 2004 3:4 PM
Before Driving Your Mazda

Fuel and Engine Exhaust Precautions

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.
MX-5/Miata
Your Mazda will perform best with fuel listed in the table.
Fuel
Premium unleaded fuel
* U.S. federal law requires that octane ratings be posted on gasoline station pumps.
You may use a regular unleaded fuel with an Octane Rating from 87 to 90 (91 to 95 RON)
but this will slightly reduce performance.
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.
MAZDASPEED MX-5
Fuel
Premium unleaded fuel
* U.S. federal law requires that octane ratings be posted on gasoline station pumps.
USE ONLY UNLEADED FUEL.
l
Leaded fuel is harmful to the catalytic converter or the oxygen sensor. The lead will
accumulate on the oxygen sensor and the catalyst inside the converter. This will result
in a malfunction of the emission control system, causing poor performance.
Your vehicle can only use oxygenated fuels containing no more than 10% ethanol by
l
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.
Never add fuel system additives. Never add cleaning agents other than those specified
l
by Mazda. Other cleaning agents and additives may damage the system. Consult an
Authorized Mazda Dealer.
(MAZDASPEED MX-5)
l
Never use fuel other than premium unleaded fuel for your vehicle. Use of other fuel
could cause poor engine performance and serious engine knocking.
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 .
4-2
Form No.8T72-EA-04G

Fuel Requirements

Octane Rating
91 [ (R+M)/2 method] or above (96 RON or above)
Octane Rating
91 [ (R+M)/2 method] or above (96 RON or above)
CAUTION
Black plate (80,1)
*
(Anti-knock index)
*
(Anti-knock index)