1997 Ford Explorer Owner Guide 1st Printing - Page 175

Maintenance and care kilometers (mileage) and time requirements, whichever occurs first: • Normal Schedule - 8,000 km (5,000 miles) or six months. • Severe Duty Schedule - 5,000 km (3,000 miles) or three months. Severe duty operation would include extensive idling, trailer towing, driving in severe dust and police, taxi or delivery service. Ford production and aftermarket (Motorcraft) oil filters are designed for added engine protection and long life. If a replacement oil filter is used that does not meet Ford material and design specifications, startup engine noises or knock may be experienced. It is recommended you use the appropriate Motorcraft oil filter (or another brand meeting Ford specifications) for your engine application. DRIVELINE UNIVERSAL JOINT AND SLIP YOKE The universal joints standard with your vehicle do not require lubrication. If the original equipment universal joints are replaced with universal joints equipped with grease fittings, lubrication will be necessary at the intervals shown in the "Service Guide" supplement. 176