Page 204 of 256

If the engine coolant has not been checked at the recommended interval,
the engine coolant reservoir may become low or empty. If the reservoir is
low or empty, add engine coolant to the reservoir. Refer toAdding
engine coolant in this chapter.
WARNING: Automotive fluids are not interchangeable; do not
use engine coolant, antifreeze or windshield washer fluid
outside of its specified function and vehicle location.
Adding engine coolant
Use only Mazda Genuine Engine Coolant or a premium engine
coolant that meets a Mazda specification.
• DO NOT USE Extended Life Engine Coolant (orange in color).
• DO NOT USE a DEX-COOL engine coolant or an equivalent
engine coolant.
• DO NOT USE alcohol or methanol antifreeze or any engine
coolants mixed with alcohol or methanol antifreeze.
• DO NOT USE supplemental coolant additives in your vehicle.
These additives may harm your engine’s cooling system.
• DO NOT MIX different colors or types of coolant in your
vehicle. Make sure the correct coolant is used.
• DO NOT MIX recycled coolant and conventional coolant
together in your vehicle. Mixing of engine coolants may harm
your engine’s cooling system.
• The use of an improper coolant may harm engine and cooling
system components and may void the warranty of your vehicle’s
engine cooling system. If you are unsure which type of coolant
your vehicle requires, contact your local dealer.
WARNING: Do not put engine coolant in the windshield washer
fluid reservoir. If engine coolant is sprayed onto the windshield,
it could make it difficult to see through the windshield.
When the engine is cool, add a 50/50 mixtureof engine coolant and
distilled water to the engine coolant reservoir, until the coolant is at the
“cold fill level” or within the “cold fill range” as listed in the engine
coolant reservoir (depending upon application).
• NEVER increase the coolant concentration above 60%.
2004 Mazda B Series (mbs)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
204
Page 242 of 256

FluidMazda Part
NameApplication Capacity
Fuel tank N/A Regular cab
(Short wheel
base) 64.4L (17
gallons)
SuperCab 73.8L (19.5 gallons)
Transfer Case
Fluid Mazda
MERCON
AT F4x4 Vehicles 1.2L (1.25
quarts)
Front axle
lubricant Mazda SAE
80W-90
Premium Rear
Axle Lubricant4x4 Vehicles 1.7L (3.6 pints)
Rear axle
lubricant
5Mazda SAE
80W-90
Premium Rear
Axle Lubricant All 2.4-2.5L (5.0-5.3
pints)
Windshield
washer fluid Ultra-Clear
Windshield
Washer
ConcentrateAll 2.6L (2.75
quarts)
1Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. MERCON and MERCONV are not interchangeable. DO NOT
mix MERCON and MERCONV. Refer to the service maintenance
section to determine the correct service interval.
2Service refill capacity is determined by filling the transmission to the
bottom of the filler hole with the vehicle on a level surface.
3Indicates only approximate dry-fill capacity. Some applications may vary
based on cooler size and if equipped with an in-tank cooler. The amount
of transmission fluid and fluid level should be set by the indication on
the dipstick’s normal operating range.
4Add the coolant type originally equipped in your vehicle. DO NOT MIX
different colors or types of coolant. DO NOT USE Mazda Extended Life
Engine Coolant (orange in color). Refer to Adding engine coolant, in
this chapter.
2004 Mazda B Series (mbs)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
242
Page 243 of 256

5Traction-Lok axles use 2.2–2.4L (4.75–5.0 pints) of rear axle lubricant.
Add 118 ml (4 oz.) of Additive Friction Modifier meeting Mazda
specifications for complete refill of Traction-Lok axles. Service refill
capacities are determined by filling the rear axle 6 mm to 14 mm (1/4
inch to 9/16 inch) below the bottom of the filler hole.
6Brake fluid will drop slowly as the brakes wear and will rise when brake
components are replaced. Fluid levels below the MAX line that do not
trigger the brake warning light are within the normal operating range,
there is no need to add fluid. If the levels are outside the normal
operating range, the performance of your brake system could be
compromised, seek service from your local Mazda dealer immediately.
LUBRICANT SPECIFICATIONS
Item Mazda part name or equivalent
Front axle (4X4) SAE 80W-90 Premium Rear Axle
Lubricant
Rear axle SAE 80W-90 Premium Rear Axle
Lubricant
1
Brake fluid and clutch fluid (if
equipped)High Performance DOT 3 Motor
Vehicle Brake Fluid
4
Door weather strips
Silicone Lubricant
Engine coolant Mazda Premium Engine Coolant3
Engine oil 2.3L I4 and 3.0L V6 engines SAE 5W-20 Motor Oil
Engine oil 4.0L V6 engines SAE 5W-30 Motor Oil
Hinges, door checks, latches, striker
plates, fuel filler door hinge and seat
tracksMulti-Purpose Grease
Transmission /steering/parking brake
linkages and pivots, brake and clutch
pedal shaft, clutch pilot bearing and
input shaft spline (manual
transmission). Premium Long-Life Grease
Power steering fluid, transfer case
fluid (4X4) and transmission fluid
(manual) MERCON
AT F
Automatic transmission (5R44E and
5R55E) MERCONVATF
2
Windshield washer fluid
Ultra-clear Windshield Washer
Concentrate
2004 Mazda B Series
(mbs)
Owners Guide (post-2002-fmt)
USA English (fus)
Maintenance and Specifications
243
Page 254 of 256

Transfer casefluid checking .........................226
Transmission automatic operation ...............114
brake-shift interlock (BSI) ....114
fluid, checking and adding
(manual) .................................225
fluid, refill capacities ..............240
lubricant specifications ..243–244
manual operation ....................117
Turn signal ..................................36
V
Vehicle dimensions ...................245
Vehicle Identification Number
(VIN) ..........................................247
Vehicle loading ..........................124 camper bodies ........................136 Ventilating your vehicle ...........110
W
Warning chimes ...........................16
Warning lights (see Lights) .......12
Washer fluid
..............................193
Water, Driving through .............123
Windows power .........................................45
Windshield washer fluid and
wipers ..........................................43
checking and adding fluid .....193
checking and cleaning ..............43
replacing wiper blades .............44
Wrecker towing .........................162
2004 Mazda B Series (mbs)
Owners Guide (post-2002-fmt)
USA English (fus)
Index
254