2008 Mercury Grand Marquis Owner Guide 1st Printing - Page 172

Tires, Wheels and Loading Replace the rear axle lubricant any time the axle has been submerged in water. Rear axle lubricant quantities are not to be checked or changed unless a leak is suspected or repair required. RECREATIONAL TOWING (ALL WHEELS ON THE GROUND) Follow these guidelines for your specific powertrain combination to tow your vehicle with all four wheels on the ground (such as behind a recreational vehicle). These guidelines are designed to ensure that your transmission is not damaged due to insufficient lubrication. All Rear Wheel Drive (RWD) vehicles: This applies to all cars and 4x2 trucks/sport utilities with rear wheel drive capability. • Place the transmission in N (Neutral) • Maximum speed is 35 mph (56 km/h) • Maximum distance is 50 miles (80 km) If a distance of 50 miles (80 km) or a speed of 35 mph (56 km/h) must be exceeded, you must disconnect the driveshaft. Ford Motor Company recommends the driveshaft be removed/installed only by a qualified technician at an authorized dealer. See your authorized dealer for driveshaft removal/installation. Improper removal/installation of the driveshaft can cause transmission fluid loss, damage to the driveshaft and internal transmission components. 172 2008 Grand Marquis (grn) Owners Guide (post-2002-fmt) USA (fus)