windshearDK

minimum engine/APU oil QTY?

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Hi all

At what QTY level is it appropriate to start refilling engine and APU engine oil before a flight? 

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Oil is cheap compared to an engine shut down.  If I am at a home base I'll top off the fluids regardless of level, if I'm away where maintenance calls are more expensive then I'll keep them above 80% unless it's a long haul then I want them above 90%.  Pilot preference.  Minimum values will turn yellow but I consider those a potential problem if they ever appear.

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At home base we always topped up the engine oils. However, since access to the APU is a little tricky on the 744, we were told to top up the oil depending on the levels. APU oil level varies if the APU is running or not running. Unfortunately, I have long since forgotten the values.  :blush:  0.60 running, 0.80 not running? I'd be suprised if the PMDG manual didn't specify this.

It's interesting to note that certain APU oil types give different level readings. The oil level sensor is a "capacitance" type, so oil density may give different readings. I don't know what brand of oil is specified for PMDG APUs.

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