Correct answer
There is insufficient pressure in the circuit.
Insufficient oil pressure, or a warning-system fault that also needs checking. Do not confuse this light with a level indicator: low pressure can have several causes, and adding oil does not guarantee a repair. Stop somewhere safe and switch the engine off promptly to avoid damage; check the level according to the manual and seek inspection if the warning persists. Do not continue driving merely because the level appears correct.
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There is too much pressure in the circuit.
There is insufficient pressure in the circuit.
The pressure is correct.
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