Preventive Maintenance Transmission and Clutch
Medium Duty
(R10/06) Y53-6008 – 205 –
Automatic Transmissions
Service Intervals
Check daily with engine idling. See Table 2, “Recommended
Maintenance Intervals,” Page 120 for service intervals.
Automatic Transmission Oil Level
NOTE: The vehicle must be parked on level ground.
Maintain the oil level and check it daily. Oil should be up to
the “HOT” mark on the dipstick when (1) the engine is run-
ning, (2) the transmission is at operating temperature, and (3)
the transmission is in Neutral. See the Transmission Opera-
tor's Manual in the glove compartment for more information
on checking the transmission oil level.
Table 11 Transmission Lubrication — Automatic transmissions
MODEL
RECOMMENDED
LUBRICANTS
AMBIENT
TEMPERATURE RANGE
VISCOSITY (SAE)
DEG. C DEG. F
ALLISON TranSynd (Castrol)
Above -23 Above -10 10W
