Damage

Periodically inspect the tire treads and sidewalls for damage (such as bulges in the tread or sidewalls, cracks in the tread groove and separation in the tread or sidewall). If damage is observed or suspected have the tire inspected by a tire professional. Tires can be damaged during off-road use, so inspection after off-road use is also recommended.
WARNING: Age
Tires degrade over time depending on many factors such as
weather, storage conditions, and conditions of use (load, speed,
inflation pressure, etc.) the tires experience throughout their lives.
In general, tires should be replaced after six years regardless of tread wear. However, heat caused by hot climates or frequent high loading conditions can accelerate the aging process and may require tires to be replaced more frequently.
You should replace your spare tire when you replace the road tires or after six years due to aging even if it has not been used.
See also:
Automatic transmission adaptive learning
Your transmission is equipped with an adaptive learning strategy found in
the vehicle computer. This feature is designed to increase durability and
provide consistent shift feel over the life of t ...
Adaptive cruise control
Collision warning is paired with adaptive cruise control (ACC) because both
features use the forward-looking radar system. With a range of up to 600 feet,
ACC monitors and adjusts vehicle speed to k ...
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 ...
