2008 Mercury Grand Marquis Owner Guide 1st Printing - Page 208

Roadside Emergencies Wheel lug nut torque* lb.ft. N•m 1⁄2 x 20 100 135 * Torque specifications are for nut and bolt threads free of dirt and rust. Use only Ford recommended replacement fasteners. When a wheel is installed, always remove any corrosion, dirt or foreign materials present on the mounting surfaces of the wheel or the surface of the wheel hub, brake drum or brake disc that contacts the wheel. Ensure that any fasteners that attach the rotor to the hub are secured so they do not interfere with the mounting surfaces of the wheel. Installing wheels without correct metal-to-metal contact at the wheel mounting surfaces can cause the wheel nuts to loosen and the wheel to come off while the vehicle is in motion, resulting in loss of control. Note: Inspect the wheel pilot hole prior to installation. If there is visible corrosion in wheel pilot hole, remove loose particles by wiping with clean rag and apply grease. Apply grease only to the wheel pilot hole surface by smearing a "dime" (1 square cm) sized glob of grease around the wheel pilot surface (1) with end of finger. DO NOT apply grease to lugnut/stud holes or wheel-to-brake surfaces. JUMP STARTING The gases around the battery can explode if exposed to flames, sparks, or lit cigarettes. An explosion could result in injury or vehicle damage. Batteries contain sulfuric acid which can burn skin, eyes and clothing, if contacted. Bolt size 208 2008 Grand Marquis (grn) Owners Guide (post-2002-fmt) USA (fus)