I have been following oil consumption in my IO-360 powered J lately. For years I have been climbing at 2700 RPM to my usual cruise altitude of anywhere from 6K to 12K with the majority of longer trips around 10K. One of the air-oil separators was installed long before I purchased in 2007 but don't remember which one. In an effort to decrease consumption I lowered my minimum to 5 quarts instead of 6. That made a small difference, but I also noted that it does not lose oil on long trips at the sam