Efficient six-speed transmissions

Lincoln MKT is equipped with two versions of the six-speed SelectShift Automatic™ transmission, both with steering wheel-mounted paddle shifters. The 3.7-liter Ti-VCT V6 uses the 6F-50, and the more powerful 3.5-liter EcoBoost V6 uses the heavy-duty 6F-55. This transmission features high-energy friction materials, a larger ring gear and a specific torque converter that optimize the 6F-55 to handle the high-torque output of the twin-turbo 3.5-liter.
These gearboxes offer the driver a choice between fully automatic operation and manual control. Intuitive to operate, a squeeze back on either paddle will deliver an upshift, while a gentle push forward on either paddle will induce a matched-rev downshift. Unlike some competitive transmissions, SelectShift won't second guess the driver with an override shift. The manual control is truly controlled by the driver.
See also:
Hilly condition usage
It is recommended that the driver select a lower gear position when ACC
is active in situations such as prolonged downhill driving on steep grades
(i.e., driving in mountainous areas). In these si ...
Special operating conditions
If you operate your vehicle primarily in any of the following conditions,
you need to perform additional maintenance as indicated. If you
occasionally operate your vehicle under any of these condi ...
Motorcraft part numbers
Refer to scheduled maintenance information for the appropriate
intervals for changing the spark plugs.
Replace the spark plugs with ones that meet Ford material and
design specifications for ...
