1997 Mercury Grand Marquis Owner Guide 1st Printing - Page 232
1997 Mercury Grand Marquis Manual
Page 232 highlights
RWARNING 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 possible tire failure. RWARNING Driving too fast for conditions creates the possibility of loss of vehicle control. Driving at very high speeds for extended periods of time may result in damage to vehicle components. Snow Tires and Chains The tires on your vehicle have all-weather treads that provide traction in rain or snow. However, during the winter months in some climates, you may need to use snow tires and occasionally chains for your tires. RWARNING Snow tires must be the same size and grade as the tires you currently have on your vehicle. 233