When To Add Engine Oil - Hummer 2003 H2 Owner's Manual

When to Add Engine Oil

If the oil is at or below the ADD mark, then you'll need
to add at least one quart of oil. But you must use the
right kind. This part explains what kind of oil to use.
For engine oil crankcase capacity, see "Capacities and
Specifications" in the Index.
NOTICE:
Don't add too much oil. If your engine has
so much oil that the oil level gets above the
-
cross hatched area that shows the proper
operating range, your engine could be damaged.
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.
The engine oil fill cap
is located on the
passenger's side valve
cover. See "Engine
Compartment Overview"
in the Index for more
information on location.
6-13