ORIGINAL: HornetFitter
In the aviation industry, we have re-test dates on each batch of oil, be it turbine oil, hydraulic fluid, radar coolant and even grease. Sometimes the batch test results come back good and sometimes they fail. IMHO, I would step up to the plate, part with a few bucks and buy some new oil....
Above are the words of a professional. Oil's cheap. Models are not.
Ed Cregger