2005 MAZDA MODEL B2300 TRUCK engine

GVW (Gross Vehicle Weight)–is the Vehicle Curb Weight + cargo +
passengers.
GVWR (Gross Vehicle Weight
Rating)–is the maximum
allowable weight of the fully loaded
vehicle (including all options,
equipment, passengers and cargo).
The GVWR is shown on the
Safety Compliance Certification
Label located on the driver’s
door or B-Pillar. The GVW must
never exceed the GVWR.
WARNING: Exceeding the Safety Certification Label vehicle
weight rating limits could result in substandard vehicle handling
or performance, engine, transmission and/or structural damage,
serious damage to the vehicle, loss of control and personal
injury.
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
128

pound bags of cement. Do you have enough load capacity to transport
the cement to your home? If you and your friend each weighed 220
pounds, the calculation would be: 1400–(2 x 220)–(12 x 100) =
1400–440–1200 =–40 pounds; no, you do not have enough cargo
capacity to carry that much weight. You will need to reduce the load
weight by at least 240 pounds. If you remove 3-100 pound cement
bags, then the load calculation would be:
1400–(2 x 220)–(9 x 100) = 1400–440–900 = 60 pounds; now you
have the load capacity to transport the cement and your friend home.
The above calculations also assume that the loads are positioned in your
vehicle in a manner that does not overload the Front or the Rear Gross
Axle Weight Rating specified for your vehicle on the Certification label
found on the driver’s door.
Special loading instructions for owners of pickup trucks and
utility-type vehicles
WARNING: For important information regarding safe operation
of this type of vehicle, see the Preparing to drive your vehicle
section in this chapter.
WARNING: Loaded vehicles may handle differently than
unloaded vehicles. Extra precautions, such as slower speeds and
increased stopping distance, should be taken when driving a
heavily loaded vehicle.
Your vehicle can haul more cargo and people than most passenger cars.
Depending upon the type and placement of the load, hauling cargo and
people may raise the center of gravity of the vehicle.
TRAILER TOWING
Your vehicle may tow a class I, II or III trailer provided the maximum
trailer weight is less than or equal to the maximum trailer weight listed
for your engine and rear axle ratio on the following charts.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
131

4x2 w/manual transmission
Engine Rear
axle
ratioMaximum
GCWR - lb.
(kg)Maximum
trailer
weight - lb.
(kg)Maximum
frontal area of
trailer - ft
2
(m2)
Regular Cab
2.3L All 4,800 (2,177) 1,600 (726) Equal to frontal
area of vehicle
3.0L* 3.73 6,000 (2,722) 2,680 (1,216) 50 (4.64)
3.0L*
Dual Sport
4.10 6,000 (2,722) 2,540 (1,152) 50 (4.64)
Cab Plus/Cab Plus 4
2.3L All 4,800 (2,177) 1,440 (653) Equal to frontal
area of vehicle
3.0L* 3.73 6,000 (2,722) 2,480 (1,125) 50 (4.64)
3.0L*
Dual Sport
4.10 6,000 (2,722) 2,380 (1,080) 50 (4.64)
4.0L All 7,000 (3,175) 3,420 (1,551) 50 (4.64)
4.0L Dual
SportAll 7,000 (3,175) 3,300 (1,497) 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 seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the load your vehicle can carry/towearlier
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).
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
132

4x4 w/manual transmission
Engine Rear axle
ratioMaximum
GCWR - lb.
(kg)Maximum
trailer
weight - lb.
(kg)Maximum
frontal area
of trailer -
ft
2(m2)
Regular Cab
3.0L* All 6,000 (2,722) 2,360 (1,070) 50 (4.64)
4.0L All 7,000 (3,175) 3,300(1,497) 50 (4.64)
Cab Plus/Cab Plus 4
4.0L All 7,000 (3,175) 3,120 (1,415) 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, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier 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).
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
133

4x2 w/automatic transmission
Engine Rear axle
ratioMaximum
GCWR - lb.
(kg)Maximum
trailer
weight - lb.
(kg)Maximum
frontal
area of
trailer - ft
2
(m2)
Regular Cab
2.3L All 5,500 (2,495) 2,260 (1,025) Equal to
frontal area
of vehicle
3.0L* 3.73 6,000 (2,722) 2,640 (1,197) 50 (4.64)
3.0L*
Dual
Sport4.10 6,000 (2,722) 2,480 (1,125) 50 (4.64)
Cab Plus/Cab Plus 4
3.0L* 3.73 6,000 (2,722) 2,440 (1,107) 50 (4.64)
3.0L* Dual
Sport4.10 6,000 (2,722) 2,340 (1,061) 50 (4.64)
4.0L All 9,500 (4,309) 5,860 (2,658) 50 (4.64)
4.0L Dual
SportAll 9,500 (4,309) 5,780 (2,622) 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 seeVehicle Loadingearlier
in this chapter.
To determine maximum trailer weight designed for your particular
vehicle, seeCalculating the load your vehicle can carry/towearlier
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).
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
134

4x4 w/automatic transmission
Engine Rear axle
ratioMaximum
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 (2,613) 50 (4.64)
Cab Plus/Cab Plus 4
4.0L All 9,500 (4,309) 5,580 (2,531) 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, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the load your vehicle can carry/towearlier 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.
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
135

Trailer tow connector
Color Function Comment
1. Dark Green Trailer right-hand
turn signalCircuit activated when brake
pedal is depressed or when
ignition is on and right-hand
turn signal is applied.
2. Yellow Trailer left-hand turn
signalCircuit 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:
•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 transmissionsection in the
Drivingchapter.)
•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 gaugein theInstrument Cluster
chapter.
•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 yourService Maintenance Section
for more information.
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
138

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.
•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.
Exceeding these limits may allow water to enter vehicle components:
•causing internal damage to the components.
•affecting driveability, emissions and reliability.
Replace the rear axle lubricant any time the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
RECREATIONAL TOWING
Follow these guidelines if you have a need for recreational towing. An
example of recreational towing would be towing your vehicle behind a
motorhome. These guidelines are designed to ensure that your
transmission is not damaged.
REVIEW COPY
2005 Mazda B Series(mbs), Owners Guide (post-2002-fmt)(own2002),
Market:USA_English(fus)
Tires, Wheels and Loading
139