So unlike your car, with an aircraft it's important to check your oil before every flight.
Here is an engine with about 45 hours since the last oil change. You shouldn't let the oil level get this low (our local shop adds oil when it reaches 5 quarts).
We added two quarts to get us home safely.
Since it was a long flight home, we changed both the oil and filter the next morning. It's important to change both the oil and the filter at the recommended intervals as older oil doesn't lubricate as well as fresh oil. This is modeled in Accu-Sim. But keep in mind, the engine isn't going to seize up even if you run it way beyond the recommended oil change interval, but those parts that rely on engine oil lubrication will wear and / or corrode faster just like they do in the real engine. There is nothing quite like checking the oil after a fresh new oil change and filter.
This is just one but important aspect of life with your Accu-Sim Cessna 172. More to come.
Scott.
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