We use EXXGARD Aero Oil Analysis program

http://www.eliteetc.com/oilanalysis.html

I usually order several kits whenever they have discount prices
(typically offered at the same time with Elite 20W-50 discount price
during special events: Sun&Fun, Oshkosh etc.)

The lab emails the result to us which is listed along with all
previous data. We can also view the results online within 24hrs of
sampling.


Hai Longworth