Underbody

In areas where road salt is used in winter, the underbody must be cleaned regularly.
This will prevent dirt and salt from building up and causing the acceleration of corrosion on the underbody and suspension.
Before the winter period and again in the spring, the underseal must be checked and, if necessary, re-treated.
See also:
Uniform tire quality grading
DOT (Department Of Transportation) Quality
Grades: All passenger car tires must
conform to federal safety requirements in
addition to these grades.
Quality grades can be found where applicable ...
Tire and loading information label
The cold tire pressure is shown on the Tire
and Loading Information label affixed to
the pillar as illustrated. ...
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