Mercedes-Benz 300 SL Operator's Manual page 86

Low Engine Oil Level Warning
Lamp
With the key in steering lock position
2, the oil pressure warning lamp comes
on and goes out with the engine
running.
If the warning lamp comes on with the
engine running and at operating
temperature, the engine oil level has
dropped to approximately the
minimum mark on the dipstick.
When this occurs, the warning lamp
will first come on intermittently and
then stay on if the oil level drops
further.
If no oil leaks are noted and there is
indicated engine oil pressure, continue
to drive to the nearest service station
where the engine oil should be topped
to the "full" mark on the dipstick with
an approved oil.
In addition to the warning lamp, the
engine oil level should be periodically
checked with the dipstick, for example
during a fuel stop, or before a long trip.
See Index.
Engine Oil Consumption
Engine oil consumption checks should
only be made after the break-in period.
During the break-in period, higher oil
consumption may be noticed and is
normal. Frequent driving at high
engine speeds results in increased
consumption.
Fuel Consumption Gauge
While driving, instantaneous fuel
consumption is indicated in miles per
gallon (mpg), or in Canada liters per
100 kilometers (I/100 km).
With the engine switched off, the
needle reads "0".
Due to system design, maximum
consumption is indicated at idle speed.
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