Low Fluid Level; Correct Fluid Level; High Fluid Level; Adjusting Automatic Transmission Fluid Levels - Mercury mariner 2009 Owner's Manual

Maintenance and Specifications
7. Remove the dipstick and inspect the fluid level. The fluid should be in
the crosshatch zone for normal operating temperature.

Low fluid level

Do not drive the vehicle if the fluid
level is at the bottom of the dipstick
and the outside temperatures are
above 50°F (10°C).

Correct fluid level

The transmission fluid should be checked at normal operating
temperatures 150°F-170°F (66°C-77°C) on a level surface. The normal
operating temperature can be reached after approximately 20 miles
(30 km) of driving.
The transmission fluid should be in
the crosshatch zone if at normal
operating temperature (150°F-170°F
[66°C-77°C]).

High fluid level

Fluid levels above the crosshatch
zone may result in transmission
failure. An overfill condition of
transmission fluid may cause shift
and/or engagement concerns and/or
possible damage.
High fluid levels can be caused by an overheating condition.

Adjusting automatic transmission fluid levels

Before adding any fluid, make sure the correct type is used. The type of
fluid used is normally indicated on the dipstick blade and also in the
Maintenance product specifications and capacities section in this
chapter.
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2009 Mariner (mrn)
Owners Guide, 1st Printing
USA (fus)