RAM 2500 2023 Owner's Manual page 400

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398
SERVICING AND MAINTENANCE
Fluid Level Check — 8-Speed Transmission
The fluid level is preset at the factory and does not require
adjustment under normal operating conditions. Routine
fluid level checks are not required, therefore the
transmission has no dipstick. An authorized dealer can
check your transmission fluid level using special service
tools.
If you notice fluid leakage or transmission malfunction,
visit an authorized dealer immediately to have the
transmission fluid level checked. Operating the vehicle
with an improper fluid level can cause severe
transmission damage.
CAUTION!
If a transmission fluid leak occurs, visit an authorized
dealer immediately. Severe transmission damage may
occur. An authorized dealer has the proper tools to
adjust the fluid level accurately.
Fluid Level Check — 6-Speed Transmission
It is best to check the fluid level when the transmission is
at normal operating temperature (158-176°F / 70-80°C).
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 temperature in the instrument cluster
screen
page 104.
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Use the following procedure to check the transmission
fluid level properly:
1.
Monitor the transmission temperature using the
instrument cluster display, and operate the vehicle
as required to reach the normal operating
temperature. If the transmission is not functioning
properly, or the vehicle cannot be driven, see the
following Note and Caution about checking the fluid
level at colder temperatures.
2.
Park the vehicle on level ground.
3.
Run the engine at normal idle speed for at least
60 seconds, and leave the engine running for the
rest of this procedure.
4.
Fully apply the parking brake, and press the brake
pedal.
5.
Place the gear selector momentarily into each gear
position (allowing time for the transmission to fully
engage in each position), ending with the
transmission in PARK.
6.
Remove the dipstick by unlocking the cap, wipe it
clean and reinsert it until seated.
7.
Remove the dipstick again and note the fluid level on
both sides. The fluid level reading is only valid if there
is a solid coating of oil on both sides of the dipstick.
Note that the holes in the dipstick will be full of fluid
if the actual level is at or above the hole.
The fluid level should be between the "HOT" (upper)
reference holes on the dipstick at normal operating
temperature. If the fluid level is low, add fluid through
the dipstick tube to bring it to the proper level. Do not
overfill. Use ONLY the specified fluid
After adding any quantity of oil through the dipstick
tube, wait a minimum of two minutes for the oil to
fully drain into the transmission before rechecking
the fluid level.
NOTE:
Oil level check can only be performed with the 44 inch
dipstick blade with oil level indicator holes. If the vehicle is
equipped with the 15 inch dipstick then a service dipstick
will be required to check the oil.
15 Inch Dipstick
page 448.
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