Lincoln Mountaineer 1997 - Manual (Page 160)

Temperature A B C
The temperature grades, from
highest to lowest, are A, B and C.
These grades represent the tire’s
resistance to the generation of
heat and its ability to dissipate
heat when tested under controlled
conditions on a specified indoor
laboratory test wheel. Sustained
high temperature can cause the
material of the tire to degenerate
and reduce tire life, and excessive
temperature can lead to sudden
failure. The grade C corresponds
to a level of performance which all
passenger tires must meet under
the Federal Motor Vehicle Safety
Standard No. 109. Grades A and B
represent higher levels of
performance on the laboratory test
wheel than the minimum required
by law.
The temperature grade for
this tire is established for a
tire that is properly inflated and
not overloaded. Excessive speed,
under inflation, or excessive
loading, either separately or in
combination, can cause heat
build up and possible tire failure.
SERVICING YOUR TIRES
Checking the tire pressure
Check the tire pressure at least
once a month or after rotating
tires and inflate tires as necessary.
Tire pressure is most accurate
Maintenance and care
160