Mercedes-Benz 600 SEL Operator's Manual page 90

Checking Engine Oil Level
1 Oil dipstick
2 Oil filler cap
The best time to check the engine oil
level is when the oil is warm, such as
during a fuel stop.
With the vehicle on level ground, stop
the engine and wait a few minutes for
the oil to drain back to the oil pan.
Wipe the dipstick clean before
checking.
Add oil, if needed, only
to the upper mark
(max).
Do not overfill engine.
For viscosity and capacity, see
Capacities: Fuels, Coolants,
Lubricants etc. in Index.
For low engine oil level warning lamp,
see Index.
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