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:
Driving style — good driving and fuel economy habits
Give consideration to the lists that follow and you may be able to change
a number of variables and improve your fuel economy.
Habits
• Smooth, moderate operation can yield up to 10% savings in fu ...
2011 Lincoln MKZ Review
The MKZ is Lincoln's entry-level luxury sedan, but with its 2010 redesign
there's not much that's entry-level about it. After driving the MKZ for a week,
I'm impressed with its strong powertrain, ...
Headlamp control
Turns the lamps off.
Turns on the parking lamps,
instrument panel lamps, license
plate lamps and tail lamps.
Turns the low beam headlamps
on. ...