Honda 1994 Prelude Online Reference Owner's Manual page 212

Tire Information
Tire Pressure Adjustment
For High Speed Driving
Honda stgrongly recommends that
you not drive faster than posted
speed limits and conditions allow. If
you decide it is safe to drive at high
speeds, be sure to adjust the cold
tire pressures as shown below. If
you do not adjust the tire pressure,
excessive heat can build up and
cause sudden tire failure.
Technical Information
Be sure to readjust the pressure for
normal driving speeds. You should
wait untill the tires are cold before
adjusting the tire pressure (see
page 160).
DOT Tire Quality Grading
(U.S. Cars)
The tires on your car meet all U.S.
Federal Safety Requirements. All
tires are also graded for treadwear,
traction, and temperature perform-
ance according to Department of
Transportation (DOT) standards.
The following explains these
gradings.
Treadwear
The treadwear grade is a compara-
tive rating based on the wear rate
of the tire when tested under con-
trolled conditions on a specified
government test course. For exam-
ple, a tire graded 150 would wear
one and one half (1-1/2) times as
well on the government course as a
tire graded 100. The relative per-
formance of tires depends upon the
actual conditions of their use, how-
ever, and may depart significantly
from the norm due to variations in
driving habits, service practices
and differences in road character-
istics and climate.