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Service Intervals & Specifications

REPLACEMENT INTERVALS

Component Miles
Air Filter 30,000
Camshaft Timing Belt
B2500 (1)
Miata, Millenia & Protege (2)
626
4 Cylinder (2)
6 Cylinder (3)
Coolant
All Models (4)
Engine Oil
B2500, B3000, B4000 5000
All Others 7500
Engine Oil Filter
B2500, B3000, B4000 5000
All Others 7500
Fuel Filter
B2500, B3000 & B4000 (5) 30,000
All Others (6)
Spark Plugs
B2500, B3000 & B4000 100,000
Millenia
2.3L 60,000
2.5L 30,000
MPV 60,000
626
2.0L 30,000
2.5L 60,000
All Others 30,000
(1) Inspect timing belt at 120,000 miles.
(2) Replace timing belt at 60,000 miles, except vehicles sold in California, New York, Massachusetts, Connecticut, Vermont, New Jersey, Rhode Island, Delaware, Maryland, New Hampshire, Pennsylvania, Virginia, Maine and Washington D. C. On vehicles sold in those states, inspect timing belt at 60,000 miles and again at 90,000 miles. Replace belt at 105,000 miles.
(3) Replace timing belt at 60,000 miles, except vehicles sold in California, Massachusetts, Vermont, New York and Maine. On vehicles sold in those states, inspect timing belt at 60,000 miles and again at 90,000 miles. Replace belt at 105,000 miles.
(4) Replace coolant at 45,000 miles (50,000 miles on B2500, B3000 and B4000), then every 30,000 miles.
(5) Recommended but not required for California vehicles.
(6) Part of in tank unit. No interval available from manufacturer.
BELT ADJUSTMENT (Tension In Lbs. (kg) Using Belt Tension Gauge)

Application New Belt (1) Used Belt
B2500, B3000 & B4000 (2) (2)
Miata
Generator 110-167 (50-76) 110-158 (50-72)
All Others 110-132 (50-60) 95-110 (45-50)
Millenia
2.3L (2) (2)
2.5L
Generator 160-190 (76-90) 110-150 (50-70)
Power Steering 130-150 (55-70) 88-130 (40-55)
MPV (2) (2)
Protege
1.6L
Generator 110-160 (50-76) 110-150 (50-70)
All Others 140-150 (60-70) 95-110 (43-50)
1.8L
Generator 160-180 (76-85) 110-150 (50-70)
All Others 140-170 (60-80) 110-150 (50-70)
626
2.0L
A/C Compressor 160-180 (76-85) 110-150 (50-70)
Generator 170-180 (75-85) 110-150 (50-70)
Power Steering 140-170 (60-80) 110-150 (50-70)
2.5L
A/C Compressor 160-190 (76-90) 110-150 (50-70)
Generator 160-190 (76-90) 110-150 (50-70)
Power Steering 130-150 (55-70) 88-120 (40-53)
(1) Used belt is a belt in operation for more than 5 minutes.
(2) Serpentine belt is used with automatic belt tensioner. Tension is correct if indicator is within limit marks.
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