Caution! The fluid level in the gearbox must be checked when the engine and gearbox are warmed up to normal operating temperature.
1. Place the car on a level horizontal surface and apply the handbrake.
2. Start the engine in idle mode and, pressing the brake pedal, move the selector lever to all positions, set it to position P, then let the engine run at idle speed for 1 minute.
3. With the engine idling, remove the dipstick to measure the oil level in the gearbox.
4. Wipe the dipstick and reinstall it, then remove it again. The oil level on the dipstick should be between the MIN and MAX marks.
5. If the oil level is low, turn off the engine and add oil through the dipstick tube.
6. Recheck the gearbox oil level and replace the dipstick. It is important to remember that a lack of oil can cause serious damage to the gearbox.
7. There is an identification number on a plate attached to the top of the gearbox. If E3 RP is printed at the end of the second row, then the gearbox is an early type, and if E6 RP, then it is a late type.
8. When adding fluid to an automatic transmission, use only the prescribed fluid, which is not compatible in early and late models.
9. If there is a need to frequently top up the oil, then there is a leak that needs to be found and fixed before it leads to serious consequences.
(The original article is available on the website: fordbook)