Volvo 780 Owner's Manual page 103

1989 Volvo 780
Automatic transmission oil
Capacity: See "Specifications" section.
Fluid type: Automatic Transmission Fluid type Dexron IID.
Replace: Every 20,000 miles (32,000 km).
WARNING!
Oil spilled on a hot exhaust pipe constitutes a fire
risk.
A Cold transmission: oil temperature = +105°F (+40°C). This is a normal temperature for the transmission after idling for about 10
minutes. At oil temperature below +105°F (+40°C), the level may be below the MIN mark.
B Warm transmission: oil temperature = +195°F (+90°C). This temperature is reached after driving for about 30 minutes. At oil
temperature above +195°F (+90°C), the level may be above the MAX mark.
Note: The engine should be idling when checking transmission fluid level.
Check the oil level as follows:
Park the car on level surface with the engine idling.
Slowly move the selector lever through all the gear positions and then to position P. Wait 2 minutes before checking the oil level. As the
illustration shows, the dipstick has a "Cold" and a "Warm" side. The oil level should be between the MIN and MAX marks. Wipe the
dipstick with a clean cloth.
WARNING!
The oil may be very
hot!
Do not use rags that could leave lint on the dipstick.
The transmission is topped up via the dipstick tube.
The space between the MIN and MAX marks on the dipstick corresponds to 0.5 US qt. (0.5 liter). Do not fill the transmission with too much
oil, since this can result in oil being ejected from the transmission.
Too little oil, on the other hand, can negatively affect transmission operation, particularly in very cold weather.
pg. 103 Cooling system
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