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:
Child booster seats
The belt-positioning booster (booster seat) is used to improve the fit of
the vehicle safety belt. Children outgrow a typical child seat (e.g.,
convertible or toddler seat) when they weigh about 4 ...
Steering
The Lincoln MKS steering system received a thorough makeover for 2013. The
gear ratio is quicker (15:1 for 2013 vs. 17.1:1 for today's MKS), making the
steering more immediately responsive at all sp ...
SelectShift Automatic™ Transmission
This feature allows the driver to manually change gears up or down as
desired. By moving the gearshift lever from D (Drive) to S (Sport), you
now have control of selecting the gear using the toggl ...
