FORD 2010 Ranger v.1 - Manual (Page 264)

9. If necessary, add fluid in 1/2 pint (250ml) increments through the filler
tube until the level is correct at normal operating temperatures. Refer to
the Maintenance product specifications and capacities section in this
chapter for the correct fluid type. The use of any other non-approved
fluid may cause internal transmission damage.
10. Fluid can be checked at ambient
temperatures between 50–95°F
(10–30°C). DO NOT ADD fluid until
the transmission is at normal
operating temperatures or the transmission will be overfilled.
Low fluid level
Do not drive the vehicle if the fluid
level is at or below the bottom of
the dipstick.
High fluid level
Fluid levels above the safe range
may cause overheating, shift and/or
engagement concerns and internal
transmission damage. If an overfill
condition occurs, excess fluid should
be removed by an authorized dealer.
Checking and adding manual transmission fluid (if equipped)
1. Clean the filler plug.
2. Remove the filler plug and
inspect the fluid level.
Maintenance and Specifications
264
2010 Ranger (ran)
Owners Guide, 1st Printing
USA (fus)