Oldsmobile Cutlass Supreme 1993 - When to Change Engine Oil; What to Do with Used Oil

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
An engine block heater can be a big
help
if you have to park outside in v
cold weather, 0°F (-18°C) or colder.
your vehicle bas this option, see the
Index under Engine Block Heater.
What to Do with Used Oil