Acura 2014 ILX Hybrid - Owner's Manual - Manual (Page 299)

uu Checking and Maintaining Tires u DOT Tire Quality Grading (U.S. Vehicles)
298
Main
tenan
ce
■ Traction 1 Traction
1 Temperature
14 ACURA ILX IMA-31TX86100.book 298 ページ ２０１３年３月７日 木曜日 午後１時１４分
QRG
Index
TOC
2014 ILX Hybrid
■ Temperature
The traction grades, from highest to lowest, are AA, A, B, and C. Those grades
represent the tire's ability to stop on wet pavement as measured under
controlled conditions on specified government test surfaces of asphat and
concrete. A tire marked C may have poor traction performance.
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 heate when
te sted 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.
Warning: The traction grade assigned to this tire is
abased on straight-ahead braking traction tests,
and does not include acceleration, cornering,
hydroplaning, or peak traction characteristics.
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 possibl
tire failure.