RAM Chassis CAB 2018, Руководство пользователя

Страница: 390 / 527

CAUTION!
Using a transmission fluid other than the manufactur-
er’s recommended fluid may cause deterioration in
transmission shift quality and/or torque converter
shudder, and will require more frequent fluid and
filter changes. Refer to “Fluids And Lubricants” in
“Technical Specifications” for fluid specifications.
Special Additives
The manufacturer strongly recommends against using any
special additives in the transmission. Automatic Transmis-
sion Fluid (ATF) is an engineered product and its perfor-
mance may be impaired by supplemental additives. There-
fore, do not add any fluid additives to the transmission.
The only exception to this policy is the use of special dyes
for diagnosing fluid leaks. Avoid using transmission seal-
ers as they may adversely affect seals.
CAUTION!
Do not use chemical flushes in your transmission as
the chemicals can damage your transmission compo-
nents. Such damage is not covered by the New Vehicle
Limited Warranty.
Fluid Level Check
Check the fluid level when the engine is fully warmed up
and the transmission fluid is at normal operating tempera-
ture. Driving with an improper fluid level will greatly
reduce the life of the transmission and of the fluid. Check
the fluid level whenever the vehicle is serviced.
Fluid Level Check — Procedure
It is best to check the fluid level when the transmission is at
normal operating temperature (170-180°F / 77-82°C for 66RFE
transmission, or 158–176°F / 70–80°C for AS66RC transmis-
sion). This normally occurs after at least 15 miles (25 km) of
driving. At normal operating temperature the fluid cannot be
held comfortably between the fingertips. You can read the
transmission sump temperature in the instrument cluster dis-
play (refer to
⬙
Instrument Cluster Display” in “Getting To
Know Your Instrument Panel” for further information).
Use the following procedure to check the transmission
fluid level properly:
1. Monitor the transmission temperature using the instru-
ment cluster display, and operate the vehicle as required
to reach the normal operating temperature. If the trans-
mission is not functioning properly, or the vehicle
cannot be driven, see the NOTE and CAUTION below
about checking the fluid level at colder temperatures.
388 SERVICING AND MAINTENANCE