Oil Pressure Gauge: Description and Operation

Oil Pressure Indication
To avoid nuisance low oil pressure warnings at engine idle rpm, the engine oil pressure transducer is replaced by an oil pressure switch. This changes the operation of the oil pressure gauge on the instrument panel. New graphics on the oil pressure gauge complement the revised operation.

The gauge now reads mid-scale (N) at all normal driving conditions, and only deflects from midscale (full left, into or below the red sector) if a genuine low oil pressure condition occurs.

The switch operates at 0.14 to 0.41 bar (2 to 6 lbf/in sq), and is torque tightened to between 11 and 13.5 N.m (98 and 119 lbf.in), on both AJ16 and V12 engines.