Speaking of conventional versus synthetic oil...I understand synthetic oil carries much less dirt than conventional oil.
A friend of mine is deeply involved in a Cessna Cardinal flyers club. He mentioned there are issues with synthetic oil in the Cardinal airplane engine, maybe just his particular engine, I don't really know for sure. If my memory serves me correctly, he said because synthetic oil carries much less dirt, dirt ends up settling and accumulating inside the airplane engine in concerning places. Therefore they are not allowed to use synthetic oil.
Can anyone here elaborate on dirt accumulation with synthetic oil? Does using synthetic oil in our automobile engines create a build-up of dirt that isn't getting flushed out during an oil change? Is any such build-up occurring in concerning places in the Ford-V10 engine?