1998 Ford Expedition Owner Guide 1st Printing - Page 125

Driving • When stopped in traffic for long periods of time in hot weather, place the gearshift in P (Park) and increase idle speed. This aids engine cooling and air conditioner efficiency. • Vehicles with trailers should not be parked on a grade. If you must park on a grade, place wheel chocks under the trailer's wheels. Launching or retrieving a boat When backing down a ramp during boat launching or retrieval, • Do not allow the static water level to rise above the bottom edge of the rear bumper and • Do not allow waves to break higher than 15 cm (six inches) above the bottom edge of the rear bumper. Exceeding these limits may allow water to enter critical vehicle components, adversely affecting driveability, emissions and reliability. If the rear axle is submerged in water, the rear axle lubricant should be checked and changed, if necessary. The rear axle is filled with a synthetic lubricant and does not normally require a lubricant change for the life of the vehicle. Rear axle lubricant quantities should not need to be checked unless a leak is suspected. 125