Chevrolet 2003 Impala Owner's Manual page 270

When to Add Engine Oil
If the oil is at or below the cross-hatched area at the tip
of the dipstick, 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 §pecifications on
page 5-101.
Notices 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.
A
1
-
SAE 5W-30
m
L
A
1
I '
*
SAE 10W-3r
m
L
3400 (Code E) V6
Engine
3800 (Code K) V6
Engine
The engine
oil
fill cap is located toward the front cf the
engine near the yellow-looped engine oil dipstick
handle. See Engine Compartment Overview on
page 5-12 for more information on location.
Be sure to fill it enough to put the level somewhere in
the proper operating range in the cross-hatched
area. Push the dipstick all the way back in when you're
through.
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