Location of engine oil sensor

[Troll]

Here's a page out of the service manual.

[drifter-paul]

Need to check my engine oil sensor.

It was coming on at road works (we have a lot at the moment), but a few extra revs fixed that.

The sight window is not easy to read, and without a speedo, I did a lot more miles, putting a litre in, each time the light stayed on.

When I get back to my home state, I find it only drains less than 500ml of oil instead of 2 1/4 - 2 1/2.

I'm surprised it did not seize, and why the light wasn't on all the time

Where is the oil sensor ? Any one had this experience ? Thanks