Lincoln 1997 Continental Owner's Manual page 251

WARNING
The traction grade assigned to this tire
is based on braking (straightahead)
traction tests and does not include
cornering (turning) traction.
Temperature A B C
The temperature grades are A (the highest), B, and
C, representing 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 tire failure. The
grade C corresponds to a level of performance
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of
performance on the laboratory test wheel than the
minimum required by law.
250
WARNING
The temperature grade for this tire is
established for a tire that is properly
inflated and not overloaded. Excessive
speed, underinflation, or excessive
loading, either separately or in
combination, can cause heat buildup
and possible tire failure.
Snow tires
WARNING
Driving too fast for conditions creates
the possibility of loss of vehicle control.
Driving at very high speeds for
extended periods of time may result in
damage to vehicle components.
Use of tire chains is not recommended. The use of
tire chains could result in damage to your vehicle.