Piper Arrow Turbo III - Add Oil

When should I add oil to the Engine via the EFB?

When it starts to run out…

From the JF manual.

Engine failure caused by low oil quantity – over time the engine will consume oil. The current oil quantity can be checked and refilled using the Refill Menu. If the engine consumes all the oil, the engine will eventually fail.

If the oil quantity displayed is less than eight quarts, use the ‘Refill Oil’ option to top up the engine oil.

From a copy of the IRL POH: