octane MAZDA MODEL CX-9 2021 Owners Manual

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.

To achieve maximum engine performance, use the specified fuel.
Fuel
Octane Rating*1 (Anti-knock index)
Regular unleaded fuel 87 [(R+M)/2 method] or above (91 RON or above)
*1 U.S. federal law requires that octane ratings be posted on gas station pumps.
Fuel with a rating lower than 87 octane (91 R ON) will negatively affect the emission control
system performance and could also cause engine knocking and serious engine damage.
CAUTION
USE ONLY UNLEADED FUEL.
Leaded fuel is harmful to the catalytic co nverter and oxygen sensors and will lead to
deterioration of the emission control system and or failures.
 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 us ing gasohol of any kind if your vehicle engine
is performing poorly.
 Never add fuel system additives other than a Mazda genuine product, 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.
Gasohol containing more than 10 % ethanol.
Gasoline or gasohol containing methanol.
Leaded fuel or leaded gasohol.
Before Driving
Fuel and Emission
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Trailer Towing (U.S.A. and Canada)
Your Mazda was designed and built primarily to carry passengers and cargo.
If you tow a trailer, follow these instructions because driver and passenger safety depends
on proper equipment and safe driving habits. Towing a trailer will affect handling, braking,
durability, performance, and fuel economy.
Never overload your vehicle or trailer. Cons ult an Authorized Mazda Dealer if you need
further details.
CAUTION
Do not tow a trailer during the first 1,000 km (600 miles) of your new Mazda. If you do, you
may damage the engine, transaxle, differential, wheel bearings, and other power-train
components.
NOTE
When towing, use of gasoline with a octane rating of 91 or higher is recommended.
Your vehicle is equipped with a Trailer Stability Control (TSC) mechanism, which
enhances vehicle stability when towing a trailer.
Refer to Trailer Stability Control (TSC) on page 4-106.
▼ We i g h t L i m i t s
TTW and GCWR
The total trailer weight (
TTW), gross combination weight rating (GCWR), gross axle
weight rating (GAWR), trailer load, and tr ailer tongue load must be within the
prescribed limits.
The total trailer weight (TTW ) is the sum of the weights of the trailer load (trailer
weight plus cargo), trailer hitch, 2 passen gers, and vehicle load (baggage, food, camp
gear, etc.). Never allow the to tal trailer weight (TTW) to exceed specifications in the
Trailer Towing-Load Table.
The maximum GCWR is the combination weig ht of the trailer and load plus the
towing vehicle (including tr ailer hitch, vehicle passengers, and load). It must not
exceed specifications in the load table.
GAWR and GVWR
Do not exceed front and rear GAWR (gross axle weight rating) and GVWR (gross vehicle
weight rating). If you do, vehicle handling, brak ing, and performance will be affected. These
values are also on the Motor Vehicle Safety Certification Label posted on the driver's door
frame.
Before Driving
To w i n g
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Outside the United States/Canada
Government regulations in the United States/Canada require that automobiles meet specific
emission regulations and safety standards. Th erefore, vehicles built for use in the United
States/Canada may differ from those sold in other countries.

The differences may make it difficult or ev en impossible for your vehicle to receive
satisfactory servicing in other countries. We strongly recommend that you NOT take your
Mazda outside the United States/Canada.

United States
However, in the event that you are moving to Canada permanently, Mazda vehicles built for
use in the United States could be eligible for exportation to Canada with specific vehicle
modifications to comp ly with the Canadian Motor Vehicle Safety Standards (CMVSS).

Canada
However, in the event that you are moving to the United States permanently, Mazda
vehicles built for use in Canada could be elig ible for exportation to the United States with
specific vehicle modifications to comply wi th the United States Federal Motor Vehicle
Safety Standards (FMVSS).
NOTE
The above is applicable for a permanent import/export situation and not related to travelers
on vacation.
You may have the following problems if you do take your vehicle outside of the United
States/Canada:
Recommended fuel may be unavailable. Any kind of leaded fuel or low-octane fuel will
affect vehicle performance and damage the emission controls and engine.
Proper repair facilities, tools, testing equipment, and replacement parts may not be
available.
Please refer to your Manufacturer's Warranty Booklet for more information.
Customer Information and Reporting Safety Defects
Wa r r a n t y
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