Cold Check
Caution: Operating a transmission with the fluid level higher or lower than recommended can result in transmission damage. Do not overfill the transmission. Overfilling will force fluid out of the case through the main shaft openings.
Do not mix types and brands of fluid, because of possible incompatibility. Do not use fluid additives, friction modifiers, extreme-pressure gear fluids, or multiviscosity lubricants.
Clean all dirt away from around the end of the fluid fill tube before removing the dipstick.
Caution: Do not allow foreign matter to enter the transmission. Dirt or foreign matter in the hydraulic system may cause undue wear of transmission parts, make valves stick, and clog passages.
Note: After replacing the transmission fluid or changing the filter(s), it is important to check the fluid level cold to determine if the transmission has a sufficient amount of fluid to be safely operated until a hot check can be performed.
- A cold check may be made when the sump temperature is 160 to 200°F (71 to 93°C).
- Run the engine for at least one minute to clear the fluid system of air.
- With the engine running, wipe the dipstick clean and check the fluid level. Any level within the COLD RUN (lower) band is satisfactory for operating the vehicle. See Fig.. If the level is not within the COLD RUN band, add or drain fluid until it reaches the middle of the COLD RUN band.
- Perform a hot check at the first opportunity after normal
operating temperature, 160 to 200°F (71 to 93°C), is reached.
Fig. 1, Dipstick Markings