Interesting....I recently gave my engine compartment a careful water hose-off and wipe-down to clean off the dust after my trip to Baja; perhaps some residual moisture around the oil-sender unit or something caused the dull glow of the LED?

Rich
San Diego

�I've had an occasion recently of very
>faint dull red glow from the LED at startup and idle, which
>subsequently quickly faded away once at operating temperatures.

That's likely a moisture-leak in the circuit.� LEDs will light very
faintly on almost ridiculously small amounts of current.� Once it
warms up and dries out the leak goes away.

The actual indication will be either on or off, no in between.

Yours,
David