2008 Infiniti G37 Owner's Manual - Page 401

TOWING A TRAILER Your vehicle was designed to be used to carry passengers and cargo. INFINITI does not recommend trailer towing, because it places additional loads on your vehicle's engine, drivetrain, steering, braking, and other systems. An INFINITI Towing Guide (U.S. only) is available on the website at www.infiniti.com. This guide includes information on trailer towing capability and the special equipment required for proper towing. UNIFORM TIRE QUALITY GRADING DOT (Department Of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable on the tire sidewall between tread shoulder and maximum section width. For example: Treadwear 200 Traction AA Temperature A ● DO NOT tow any automatic transmission vehicle with all four wheels on the ground (flat towing). Doing so WILL DAMAGE internal transmission parts due to lack of transmission lubrication. ● For emergency towing procedures refer to "TOWING RECOMMENDED BY INFINITI" in the "6. In case of emergency" section of this manual. TREADWEAR The treadwear grade is a comparative rating based on the wear rate of the tire when tested under controlled conditions on a specified government test course. For example, 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 performance of tires depends upon actual conditions of their use, however, and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics and climate. CAUTION Vehicle damage resulting from towing a trailer is not covered by INFINITI warranties. Automatic transmission To tow a vehicle equipped with an automatic transmission, an appropriate vehicle dolly MUST be placed under the towed vehicle's drive wheels. Always follow the dolly manufacturer's recommendations when using their product. FLAT TOWING Towing your vehicle with all four wheels on the ground is sometimes called flat towing. This method is sometimes used when towing a vehicle behind a recreational vehicle, such as a motor home. Manual transmission ● Always tow with the manual transmission in Neutral. ● Your vehicle speed should never exceed 70 MPH (112 km/h) when flat towing your vehicle. ● After towing 500 miles, start and idle the engine with the transmission in Neutral for two minutes. Failure to idle the engine after every 500 miles of towing may cause damage to the transmission's internal parts. CAUTION ● Failure to follow these guidelines can result in severe transmission damage. ● Whenever flat towing your vehicle, always tow forward, never backward. TRACTION AA, A, B AND C 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 Technical and consumer information 9-21