1994 Chevrolet S10 Pickup Owner's Manual - Page 231

Engine Oil Additives Don't addanything to your oil. Your GM dealer is ready to advise if you think something should be added. When to Change Engine Oil See if any one of these is true for you: Most trips are less than 4 miles (6 km). 0 It's below freezing outside and most trips areless than 10 miles (16 km). The engine is at low speed most the time (as in door-to-door of delivery, or in stop-and-go traffic). You tow a trailer often. Most trips are through dusty places. 0 The vehicle is frequently operated off-road. If any one of these is truefor your vehicle, then you need to change your oil andfilter every 3,000 miles (5 000 km) or 3 months - whichever comes first. If none of them is true, change the oil every 7,500 miles (12 500 k ) 12 m or months - whichever comesfirst. Change thefilter at the first oil change and at every other oil change after that. Four-wheel Drive Remote Oil Filter If your vehicle has four-wheel drive, you will have a remote filter oil located under the radiator support. There is a special access door in the vehicle body skirt shield. Engine Coolant Heater (Engine Block Heater) An engine coolant heater can be a big help have to parkoutside in if you very cold weather,0 "F (-1 8 O 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 contains certain elements that may be oil unhealthy for your skin and could even cause cancer? Don't let used oil stay on your skinfor very long. Clean your skin and nails soap and water, with or a good hand cleaner. Wash properly throw away clothing rags or or containing wed engine oil. (See the manufacturer's warnings about the use and disposalof oil products.) 6-13