GSの取扱説明書・マニュアル [全25ページ 0.97MB]
sec_08-01.pdf
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770GS350_U (OM30C34U)8-1. SpecificationsThis information has been prepared in accordance with regulations issuedby the National Highway Traffic Safety Administration of the U.S. Depart-ment of Transportation.It provides the purchasers and/or prospective purchasers of Lexus vehi-cles with information on uniform tire quality grading.Your Lexus dealer will help answer any questions you may have as you read thisinformation.■DOT quality gradesAll passenger vehicle tires must conform to Federal Safety Require-ments in addition to these grades. Quality grades can be found whereapplicable on the tire sidewall between tread shoulder and maximumsection width.For example: Treadwear 200 Traction AA Temperature A■TreadwearThe treadwear grade is a comparative rating based on the wear rate ofthe tire when tested under controlle d conditions on a specified govern-ment test course.For example, a tire graded 150 would wear one and a half (1 - 1/2) times as wellon the government course as a tire graded 100.The relative performance of tires depends upon the actual conditions of theiruse. Performance may differ significantly from the norm due to variations indriving habits, service practices and differences in road characteristics and cli-mate.■Traction AA, A, B, CThe traction grades, from highest to lowest, are AA, A, B and C, andthey represent the tire's ability to stop on wet pavement as measuredunder controlled conditions on sp ecified government test surfaces ofasphalt and concrete.A tire marked C may have poor traction performance.Warning: The traction grade assigned to this tire is based on braking (straightahead) traction tests and does not include cornering (turning) traction.Uniform Tire Quality Grading
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