1994 Buick Roadmaster Owner's Manual - Page 237

Engine Oil Additives .Coolant Engine Don't add anything toyour oil. Your Buickdealeris ready to advise if you think something should be added. , Warmer (Engine Block Heater) An engine coolant warmer can be a big help if you have to park outside in very cold weather, (- 18O C) or 0O F colder. If your vehicle'hasthis option, see "Engine the Index. When to Change Engine Oil See if any one of these is 0 true for you: Warmer" Coolant in Most trips are less than 4 miles (6 km). It's below freezing outside.and most trips are less than 10 miles (16 km). The engine is at low speedmost of the time (asin door-to-door delivery, or in stop-and-go traffic). You tow a trailer often. What to Do with Used Oil Did you know that usedengine oil contains certain elements that may be unhealthy your skin and could for even cause cancer? Don't let used stay on your oil skin for very long. Clean your skin and nails with and soap water, or a good hand cleaner. or properly throw Wash away clothing or rags containing used engine oil. (See the manufacturer's warnings about the use and disposal of oil products.) 0 @ Most trips are through dusty places. If any one of these is true for your vehicle,then'you need to change your oil and filter every 3,000 miles ' ( 5000 km) or 3 months -- whichever comes first.. (See "Change Oil Indicator" inthe Index.) If none of them is true,change the oil every 7,500 miles (12 500 km) or 12 months -- whichever comes first. Change the filter at the first oil change and at every other oil change after that. (See "Change Oil Indicator'' in Index.) the the Used oil canbe a real threat to environment. If you change your own oil, be sure to drain all free-flowing oil from the filter before disposal., Don't ever dispose of oil by putting it inthe trash, pouring it on ground, the into sewers, or into streams or bodies water. Instead, of If recycle it by taking itto a place that collects used oil. you have a problem properly disposing your used oil, of ask your dealer, a service station orlocal recycling a center for help.