OIL & FILTER CHANGE
See Figures 1 and 2
When adding to oil, or changing the oil or filter, at other than an authorized dealer, it is imperative that oil or filters of equal quality to original equipment be used. Use of inferior oil or filters may establish the basis for denying warranty coverage of any engine part damaged as a result. A new set of oil designations are slowly being phased into use by the American Petroleum Institute.
Oil of the SH variety performs a multitude of functions, in addition to its basic lubricating properties. Through a balanced formula of metallic detergents and polymeric dispersants, the oil prevents high and low temperature deposits and keeps dirt particles and sludge in suspension. Acids, particularly sulphuric acid, and other by-products of combustion are neutralized by the oil. These acids, if permitted to concentrate, may cause rust and corrosion in the engine.
It is important to choose an oil of the proper viscosity for climatic and operational conditions. The SAE viscosity rating is printed on the oil container. For winter operation, a W may be added after the SAE rating to indicate the oil's suitability for cold temperatures. The oil viscosity-temperature range chart is useful in selecting the proper grade.
Ford recommends that the oil and filter be changed every six months or 6,000 miles (4 months or 4,000 miles-1973). However, certain operating conditions may warrant more frequent changes. If the vehicle is used for short trips, the presence of water and low-temperature deposits may make it necessary to change the oil more frequently. If the vehicle is used in stop-and-go city traffic, corrosive acids and high-temperature deposits may necessitate shorter oil changing intervals. The shorter intervals are applicable for industrial or rural areas where high concentrations of dust in the atmosphere contaminate the oil.
REMOVAL & INSTALLATION
See Figures 3 through 10
- Raise the car, taking proper safety precautions.
- Remove the oil pan drain plug, allowing the engine oil to drain into a container.
- Place a drip pan under the filter.
- Turn the filter counterclockwise with a strap wrench, if necessary, and remove it from the engine.
Please remember these steps
- Clean the gasket surface at the adaptor.
- Coat the filter gasket with light engine oil. Hand-turn the filter clockwise until the filter gasket contacts the sealing surface. Then hand-turn the filter one-half turn clockwise.
- Remove drip pan with the old oil. If the oil pan drain plug gasket is defective, replace and tighten the plug to 15-20 ft. lbs. of torque. Lower the car.
- Fill the crankcase to the proper level on the dipstick with the recommended grade of oil.
- Start the engine and operate it at fast idle. Check for oil leaks. Recheck the oil level.