2012 Lexus ES 350 Owners Manual - Page 504
2012 Lexus ES 350 Manual
Page 504 highlights
6-1. Specifications Tire related term Sidewall separation Meaning The parting of the rubber compound from the cord material in the sidewall A tire that attains a traction index equal to or greater than 110, compared to the ASTM E-1136 Standard Reference Test Tire, when using the snow traction test as described in ASTM F-1805-00, Standard Test Method for Single Wheel Driving Traction in a Straight Line on Snow-and Ice-Covered Surfaces, and which is marked with an Alpine Symbol ( on at least one sidewall ) Snow tire Test rim Tread Tread rib Tread separation Treadwear indicators (TWI) Wheel-holding fixture The rim on which a tire is fitted for testing, and may be any rim listed as appropriate for use with that tire That portion of a tire that comes into contact with the road A tread section running circumferentially around a tire Pulling away of the tread from the tire carcass The projections within the principal grooves designed to give a visual indication of the degrees of wear of the tread The fixture used to hold the wheel and tire assembly securely during testing 6 Vehicle specifications *:Table 1 ⎯ Occupant loading and distribution for vehicle normal load for various designated seating capacities 509