See also:

Engine oil pressure gauge (if so equipped)
Engine oil pressure gauge (if so equipped) The gauge indicates the engine lubrication system oil pressure while the engine is running. When the engine speed is high, the engine oil pressure ...

Engine oil and oil filter recommendations
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Tachometer
Tachometer The tachometer indicates engine speed in revolutions per minute (rpm). Do not rev the engine into the red zones. CAUTION: When engine speed approaches the red zone, shift to a hi ...