Buick 1993 Skylark Owner's Manual page 228

0
It's below freezing outside and most trips are less
than 10 miles (16
km).
0
The engine is at low speed most of the time (as in
door-to-door delivery, or in stop-and-go traffic).
0
You tow a trailer often.
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 ( 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 m ) or 12 months
--
whichever comes first.
Change the filter at the first oil change and at every
other oil change after that.
Engine Block Heater: An engine block heater can be a
big help if you have to park outside in very cold
weather, -20 F (-29 C)
or colder. If your vehicle has
this option, see "Engine Block Heater." in the Index.
What to Do with Used Oil:
I
sed engine oil contains things that have caused
skin cancer in laboratory animals. Don't let used
oil stay on your skin for very long. Clean your
skin and nails with soap and water, o r a good
hand cleaner. Wash or properly throw away
c-othing
or
rags containing used engine oil.
Used oil can be a real threat to the environment. Don't
ever dispose of it by 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 propeily disposing of your used oil,
ask your dealer, a service station or a local recycling
center for help.
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