Buick Enclave Owner's Manual page 321

Notice: Do not add too much
oil. Oil levels above or below
the acceptable operating range
shown on the dipstick are harmful
to the engine. If you find that
you have an oil level above the
operating range, i.e., the engine
has so much oil that the oil level
gets above the cross-hatched
area that shows the proper
operating range, the engine
could be damaged. You should
drain out the excess oil or limit
driving of the vehicle and seek a
service professional to remove
the excess amount of oil.
See Engine Compartment Overview
on page 10 6 for the location of the
engine oil fill cap.
Add enough oil to put the level
somewhere in the proper operating
range. Push the dipstick all the way
back in when through.
Selecting the Right Engine Oil
Selecting the right engine oil
depends on both the proper oil
specification and viscosity grade.
See Recommended Fluids and
Lubricants on page 11 12.
Specification
Use and ask for licensed engine
oils with the dexos1 approved
certification mark. Engine oils
meeting the requirements for the
vehicle should have the dexos1
approved certification mark.
This certification mark indicates
that the oil has been approved
to the dexos1 specification.
I n f o r ma t i o n P r o v i d e d b y :
Vehicle Care
Notice: Failure to use the
recommended engine oil or
equivalent can result in engine
damage not covered by the
vehicle warranty. Check with
your dealer or service provider
on whether the oil is approved
to the dexos1 specification.
Viscosity Grade
SAE 5W 30 is the best viscosity
grade for the vehicle. Do not use
other viscosity grade oils such as
SAE 10W 30, 10W 40, or 20W 50.
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