Gearcase Lubrication
OIL VISCOSITY
Choose the viscosity according to the temperature as shown in the appropriate oil viscosity chart
(Figure 63)
.
See
following NOTE.
NOTE:
Use engine oil with API classification CF for diesel engines.
SAE 10W-30/SAE 10W-40
SAE 20
SAE 30
SAE 10W
214
Figure 63
Oil Viscosity Chart – Diesel Vehicles
Using multi-grade oils (5W-20, 10W-30, and 10W-40) may increase oil consumption. If multi-grade oil is used, check
the oil level more frequently.
GEARCASE LUBRICATION
NOTE:
Dispose of used oil according to the environmental laws and regulations for your area.
LUBRICATION LEVEL CHECK FOR FRONT DIFFERENTIAL, TRANSMISSION, AND REAR
DIFFERENTIAL
Each gearcase component is equipped with two oil port plugs (1 and 2)
(Figure 64, Figure 65, and Figure 66)
. When
the vehicle is on a level surface, use the level indicator hole (upper plug) (1) as a lubricant level indicator. Lubricant
level should be even with the bottom of level indicator hole (1).
NOTE:
For 2012 and newer vehicles, do not use the fill hole in the rear differential as a lubricant level indicator.
LUBRICATION CHANGE FOR FRONT DIFFERENTIAL, TRANSMISSION, AND REAR
DIFFERENTIAL
Use the lower plug (2) for drainage
(Figure 64, Figure 65, or Figure 66)
. Remove both plugs to allow the lubricant to
drain faster.
See preceding NOTE.
Metal particles may be discovered in the fluid or on the magnetic drain plug when changing the differential or
transmission fluid. These particles are normal and expected for the first few fluid changes. This is a result of the gears
being “net forged”, meaning the gears are forged to a shape very close to the final gear size but the teeth are not finish
machined prior to assembly. The “finish machining” occurs when the gears make contact under load during vehicle
operation. The magnetic drain plug is included in the design to collect the metal particles generated from the gear
break in process. This is an established process and is not detrimental to gear service life.
IntelliTach All-Wheel Drive Diesel Vehicle Owner’s Manual
Page 63
Summary of Contents for Carryall 1500 IntelliTach
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