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Piston aviation engine oil analysis in the EU

@eurogaguest1980, was at the hangar yesterday and the AOA bottle measures 60×41.5mm

Dan
ain't the Destination, but the Journey
LSZF, Switzerland

Dan wrote:

was at the hangar yesterday and the AOA bottle measures 60×41.5mm

Thanks @Dan. Seems to be a bit smaller than what we send to Blackstone. Mailing the Blackstone from CH costs 12 CHF. I doubt it will get much cheaper with a smaller bottle.

Fly more.
LSGY, Switzerland

I have never done this. So, pardon me for the dumb question: do you wait until the oil change cycle to get the sample or could one take out a little quantity in-between and top up a few quarts afterwards?

EDMB, Germany

Just sample at the engine service. You write the actual age of the oil on the piece of paper.

Administrator
Shoreham EGKA, United Kingdom

do you wait until the oil change cycle to get the sample or could one take out a little quantity in-between and top up a few quarts afterwards?

All of the oil analysis providers have their set of instructions, but basically the sample is taken during the oil change at whatever interval has been set. Some people like myself do it at every oil change whilst others only do it every 100hrs.
The engine has to be brought to temperature before in order to mix all the oils components, then the procedure reminds one of taking the medical in that about 1 liter of oil is drain before taking the sample.
A tag with the engine data, hours on the oil, oil burn rate, oil type, etc, is sent along the sample.

Sending regular probes will then yield trend tables which are one of the tools used to assess the engine’s health.

Dan
ain't the Destination, but the Journey
LSZF, Switzerland
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