Buick regal 2001 Manual De Usuario

The engine oil fill cap is located toward the front of 
the engine near the yellow

-

looped engine oil dipstick

handle. See “Engine Compartment Overview” in the
Index for more information on location.

Be sure to fill it enough to put the level somewhere in
the proper operating range. Push the dipstick all the 
way back in when you’re through.

Oils recommended for your vehicle can be identified by
looking for the starburst symbol.

This symbol indicates that the oil has been certified by
the American Petroleum Institute (API). Do not use any
oil which does not carry this starburst symbol.

If you change your own oil,
be sure you use oil that has
the starburst symbol on the
front of the oil container. 
If you have your oil
changed for you, be sure 
the oil put into your engine
is American Petroleum
Institute certified for
gasoline engines.