Titan-Xpert
Active Member
I suspect you are only discussing the four cylinder engine here.
My 540 is very happy at the nine quart level.
Yes I was talking about four cylinder types. Nine quarts is the magic number for most 540?s for the same reasons.
If you were going to do a max range flight and were concerned about running low on oil before the end of the flight. Lycoming type engines can be serviced to the max oil level. They will consume the top couple of quarts faster than normal.