When to Add Engine Oil
If the oil is below the L mark for the L6 engine or the cross-hatched area at the tip of the dipstick for the V8 engine, you will need to add at least one quart/liter of oil. But you must use the right kind.
This section explains what kind of oil to use. For engine oil crankcase capacity.
Notice: Do not add too much oil. If the engine has so much oil that the oil level gets above the cross-hatched area (F) that shows the proper operating range for the L6 engine or above the cross-hatched area for the V8 engine, the engine could be damaged.
Be sure to add enough oil to put the level somewhere in the proper operating range.
Push the dipstick all the way back in when you are through.
See also:
Footnotes — Maintenance
Schedule Additional Required
Services — Severe
a) Or every two years, whichever
comes first.
b) Check all fuel and vapor lines
and hoses for proper hook-up,
routing, and condition. Check that
the purge valve, if the vehicle has
one, wor ...
OnStar® Services
For new vehicles equipped with OnStar®, the Safe
& Sound Plan, or the Directions & Connections®
Plan is included for one year from the date of
purchase. You can extend this plan beyond th ...
Tire Sealant and Compressor Kit
Storage
The tire sealant and compressor kit is located in the trunk.
1. Open the trunk. See Trunk
2. Lift the cover.
3. Turn the retainer clockwise and remove the tire
sealant and compressor kit.
To ...