2008 MAZDA MODEL B2300 TRUCK engine

4x2 w/automatic transmission
Engine Rear axle
ratio Maximum
GCWR - lb. (kg) Maximum
trailer
weight - lb. (kg) Maximum
frontal area
of trailer - ft
2
(m2)
Cab Plus 4
2.3L 4.10 5,500 (2,495) 2,100 (953) Equal to frontal area of vehicle
3.0L* 3.73 6,000 (2,722) 2,440 (1,106) 50 (4.64)
3.0L* Dual Sport 4.10 6,000 (2,722) 2,280 (1,034) 50 (4.64)
4.0L All 9,500 (4,309) 5,880 (2,667) 50 (4.64)
4.0L Dual Sport All 9,500 (4,309) 5,720 (2,594) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft.
(300 meters) elevation.
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
For definition of terms used in this table see Vehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, see Vehicle loading earlier in this chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
138

4x4 w/automatic transmission
Engine Rear axle
ratio Maximum
GCWR - lb. (kg) Maximum
trailer
weight - lb. (kg) Maximum
frontal area
of trailer - ft
2
(m2)
Regular Cab
3.0L* 3.73 6,000 (2,722) 2,340 (1,061) 50 (4.64) 4.0L All 9,500 (4,309) 5,760 (2,612) 50 (4.64) Cab Plus 4
4.0L All 9,500 (4,309) 5,600 (2,540) 50 (4.64)
For high altitude operation, reduce GCW by 2% per 1,000 ft.
(300 meters) of elevation.
*When towing on roads with steep grades or moderate but long
sustained grades (5 miles [8 km] or more), or when ambient
temperatures exceed 100°F (37°C), vehicle speed should not exceed
45 mph (72 km/h) in both cases.
For definition of terms used in this table, see Vehicle loadingearlier in
this chapter.
To determine maximum trailer weight designed for your vehicle, see
Vehicle loading earlier in this chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
WARNING: Do not exceed the GVWR or the GAWR specified on
the certification label.
The certification label is found on the driver’s door latch pillar. WARNING: Towing trailers beyond the maximum recommended
gross trailer weight exceeds the limit of the vehicle and could
result in engine damage, transmission damage, structural
damage, loss of vehicle control, vehicle rollover and personal
injury.
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
139

Refer to the following chart for information regarding the
factory-equipped trailer tow connector:
Trailer tow connector
Color Function Comment
1. Dark Green Trailer right-handturn signal Circuit activated when brake
pedal is depressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn signal Circuit activated when brake
pedal is depressed or when
ignition is on and left-hand
turn signal is applied.
3. Tan/White Tail lamp Relay controlled circuit activated when the park
lamps/headlamps are on.
4. White Ground Matching vehicle circuit returns to battery’s negative
ground.
Driving while you tow
When towing a trailer:
• Keep your speed no faster than 70 mph (112 km/h) during the first
500 miles (800 km) of towing a trailer, and don’t make full throttle
starts.
• Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
• Consult your local motor vehicle speed regulations for towing a trailer.
• To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Driving with a 5–speed automatic transmission section in the
Driving chapter.)
• Under extreme conditions with large frontal trailers, high outside
temperatures and highway speeds, the coolant gauge may indicate
higher than normal coolant temperatures. If this occurs, reduce speed
until the coolant temperature returns to the normal range. Refer to
Engine coolant temperature gauge in theInstrument Cluster
chapter.
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
142

•Anticipate stops and brake gradually.
• Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to your scheduled maintenance
information for more information.
Trailer towing tips
• Practice turning, stopping and backing up before starting on a trip to
get the feel of the vehicle trailer combination. When turning, make
wider turns so the trailer wheels will clear curbs and other obstacles.
• Allow more distance for stopping with a trailer attached.
• The trailer tongue weight should be 10–15% of the loaded trailer
weight.
• If you will be towing a trailer frequently in hot weather, hilly
conditions, at GCWR, or any combination of these factors, consider
refilling your rear axle with synthetic gear lube if not already so
equipped. Refer to the Maintenance and specifications chapter for
the lubricant specification. Remember that regardless of the rear axle
lube used, do not tow a trailer for the first 500 miles (800 km) of a
new vehicle, and that the first 500 miles (800 km) of towing be done
at no faster than 70 mph (112 km/h) with no full throttle starts.
• After you have traveled 50 miles (80 km), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
• To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park)
(automatic transmission) or N (Neutral) (manual transmissions).
• Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer’s wheels.
Launching or retrieving a boat
Disconnect the wiring to the trailer before backing the trailer
into the water. Reconnect the wiring to the trailer after the
trailer is removed from the water.
When backing down a ramp during boat launching or retrieval:
• do not allow the static water level to rise above the bottom edge of
the rear bumper.
• do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
143

STARTING
Positions of the ignition1. ACCESSORY, allows the electrical accessories such as
the radio to operate while the
engine is not running.
2. LOCK, locks the steering wheel, automatic transmission gearshift
lever and allows key removal.
For vehicles equipped with a
manual transmission, you must
depress the ignition release
lever to release the key.
3. OFF, shuts off the engine and all accessories without locking the steering wheel. This position also allows the automatic transmission
shift lever to be moved from the P (Park) position without the brake
pedal being depressed.
WARNING: When the key is in the ignition and in the OFF
position, the automatic transmission shift lever can be moved
from the P (Park) position without the brake pedal depressed.
To avoid unwanted vehicle movement, always set the parking
brake.
Note: On some vehicles, when the key is in the OFF position, the
brake-shift interlock feature will prevent the automatic transmission shift
lever from being moved out of the P (Park) position without the brake
pedal being depressed.
4. ON, all electrical circuits operational. Warning lights illuminated. Key position when driving.
5. START, cranks the engine. Release the key as soon as the engine starts.
Preparing to start your vehicle
Engine starting is controlled by the powertrain control system.
Note: This system meets all Canadian Interference-Causing Equipment
standard requirements regulating the impulse electrical field strength of
radio noise.
3
1
2
5
4
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Driving
146

When starting a fuel-injected engine, don’t press the accelerator before
or during starting. Only use the accelerator when you have difficulty
starting the engine. For more information on starting the vehicle, refer to
Starting the enginein this chapter.
WARNING: Extended idling at high engine speeds can produce
very high temperatures in the engine and exhaust system,
creating the risk of fire or other damage.
WARNING: Do not park, idle, or drive your vehicle in dry grass
or other dry ground cover. The emission system heats up the
engine compartment and exhaust system, which can start a fire.
WARNING: Do not start your vehicle in a closed garage or in
other enclosed areas. Exhaust fumes can be toxic. Always open
the garage door before you start the engine. See Guarding
against exhaust fumes in this chapter for more instructions.
WARNING: If you smell exhaust fumes inside your vehicle,
have your dealer inspect your vehicle immediately. Do not drive
if you smell exhaust fumes.
Important safety precautions
When the engine starts, the idle RPM runs faster to warm the engine. If
the engine idle speed does not slow down automatically, have the vehicle
checked.
Before starting the vehicle: 1. Make sure all occupants buckle their seat belts. For more information on seat belts and their proper usage, refer to the
Seating and Safety Restraints chapter.
2. Make sure the headlamps and electrical accessories are off.
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Driving
147

•steering wheel is turned when getting in or out of the vehicle
Some warning lights will briefly illuminate. See Warning lights and
chimes in theInstrument Cluster chapter for more information
regarding the warning lights.
Starting the engine
Note: Whenever you start your vehicle, release the key as soon as the
engine starts. Excessive cranking could damage the starter.
1. Turn the key to 4 (ON) without turning the key to 5 (START). If
there is difficulty in turning the
key, rotate the steering wheel
until the key turns freely. This
condition may occur when:
• the front wheels are turned
• a front wheel is against the curb
Turn the key to 5 (START), then
release the key as soon as the
engine starts. Excessive cranking could damage the starter.
Note: If the engine does not start within five seconds on the first try,
turn the key to OFF, wait 10 seconds and try again. If the engine still
fails to start, press the accelerator to the floor and try again; this will
allow the engine to crank with the fuel shut off in case the engine is
flooded with fuel.
Guarding against exhaust fumes
Carbon monoxide is present in exhaust fumes. Take precautions to avoid
its dangerous effects.
WARNING: If you smell exhaust fumes inside your vehicle,
have your dealer inspect your vehicle immediately. Do not drive
if you smell exhaust fumes.
Important ventilating information
If the engine is idling while the vehicle is stopped for a long period of
time, open the windows at least one inch (2.5 cm) or adjust the heating
or air conditioning to bring in fresh air.
3
2
1
5
4
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Driving
149

ENGINE BLOCK HEATER (IF EQUIPPED)
An engine block heater warms the engine coolant which aids in starting
and allows the heater/defroster system to respond quickly. If your vehicle
is equipped with this system, your equipment includes a heater element
which is installed in your engine block and a wire harness which allows
the user to connect the system to a grounded 120 volt a/c electrical
source. The block heater system is most effective when outdoor
temperatures reach below 0°F (-17°C).WARNING: Failure to follow engine block heater instructions
could result in property damage or physical injury.
WARNING: To reduce the risk of electrical shock, do not use
your heater with ungrounded electrical systems or two-pronged
(cheater) adapters.
Prior to using the engine block heater, follow these recommendations for
proper and safe operation:
• For your safety, use an outdoor extension cord that is product
certified by Underwriter’s laboratory (UL ) or Canadian Standards
Association (CSA). Use only an extension cord that can be used
outdoors, in cold temperatures, and is clearly marked Suitable for Use
with Outdoor Appliances. Never use an indoor extension cord
outdoors; it could result in an electric shock or fire hazard.
• Use a 16 gauge outdoor extension cord, minimum.
• Use as short an extension cord as possible.
• Do not use multiple extension cords. Instead, use one extension cord
which is long enough to reach from the engine block heater cord to
the outlet without stretching.
• Make certain that the extension cord is in excellent condition (not
patched or spliced). Store your extension cord indoors at
temperatures above 32°F (0°C). Outdoor conditions can deteriorate
extension cords over a period of time.
• To reduce the risk of electrical shock, do not use your heater with
ungrounded electrical systems or two pronged (cheater) adapters.
Also ensure that the block heater, especially the cord, is in good
condition before use.
• Make sure that when in operation, the extension cord plug /engine
block heater cord plug connection is free and clear of water in order
to prevent possible shock or fire.
2008 B-Series (mbs)
Owners Guide (post-2002-fmt)
USA (fus)
Driving
150