1994 GMC Safari Owner's Manual - Page 232

Engine Oil Additives Don't add anything to your Your GM dealer is ready to advise if you oil. think something should beadded. When to Change Engine Oil See if any one of these is truefor you: Most trips are less than4 miles (6 km). It's below freezing outside and most trips are less than10 miles (16 km). 0 The engine is at low speed most ofthe time (as in door-to-door delivery, or in stop-and-go traffic). You tow a trailer often. 0 Most trips are through dusty places. If any one of these is true for your vehicle, then need to change your oil you andfilter every 3,000 miles (5 000 km) or 3 months - whichever comes first. If none of them is true, change theoil every 7,500 miles (1 2 500 km) or 12 months - whichever comes first. Change the filter at the first oil change and at every other oil change after that. Engine Coolant Heater (Engine Block Heater) An engine coolant heater can be a big help if you have to parkoutside in very cold weather,0°F (-1 8 "C) or colder. If your vehicle has this option, see "Engine Coolant Heater" in the Index. What to Do with Used Oil Did you know that used engine oil contains certain elements that may be unhealthy for your skin and could even cause cancer? Don't let used oil stay on your skin for very long. Clean your skin and nails soap and water, with or a good hand cleaner.Wash or properly throw awayclothing or rags containing used engine oil. (See the manufacturer's warnings about the use and disposal of oil products.) Used oil can bea real threat to theenvironment, If you change your ownoil, be sure to drain all free-flowing oil fromthe filter before disposal. Don't ever dispose of oil by putting it in the trash, pouring it on the ground, into sewers, or into streams or bodies of water. Instead, recycle it by taking it to a place that collects used oil. If you have a problem properly disposing of your used oil, ask your dealer,a service station or a local recycling center for help. 6-14