1998 Buick Skylark Owner's Manual - Page 240

Engine Oil Additives Don't add anything to your oil. Your dealerready to is advise if you think something should be added. When to Change Engine Oil If any one of these is true you, usethe short tripkity for maintenance schedule: 0 Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly important when outside temperatures are below freezing. If none of them is true, use the long triphighway maintenance schedule. Change the oil and every filter 7,500 miles (12 500 k ) 12 months -- whichever m or occurs first. Driving a vehicle with a fully warmed engine under highway conditions causes engine oil to break down slower. What to Do with Used Oil Did you know that used engine contains certain oil elements that may be unhealthy your skin and could for even cause cancer? Don't used oil stay on your skin let for very long. Clean your skin and nails with soap and 0 Most trips include extensive idling (such as frequent water, or a good hand cleaner. Wash or properly throw driving in stop-and-go traffic). away clothing or rags containing used engine oil. (See 0 Most trips are through dusty areas. the manufacturer's warnings about use and disposal the 0 You frequently tow a trailer or use a carrier on of top of oil products.) your vehicle. Used oil can be a real threat to the environment. If you change your own oil, be sure to drain all free-flowing oi 0 The vehicle is used for delivery service, police, taxi from the filter before disposal. Don't ever dispose oil of or otherc o r n xial application. by putting it in the trash, pouringit on the ground, into Driving under these conditions causes engine to oil sewers, orinto streams or bodiesof water. Instead, break down sooner. any oneof these is true for your If oil. recycle it by taking it to a place that collects used If vehicle, then you need to change your oil filter and you have a problem properly disposing your usedoil, of m or every 3,000 miles (5 000 k ) 3 months -- whichever ask your dealer, a service station or a local recycling occurs first. center for help. ~