Dave wrote:
Hi Warrior/Cherokee pilots...
How full do you keep your engine? (oil level? )
Seems anything above 6 1/2 it just leaves...
5 1/2 - 6 it hardly consumes any oil at all...
Ours is 1976 150 hp Lyc, 600 hrs SMOH, 4 new cyls 60 hrs ago.
Compression all 73 - 76
Aircraft is new to us, we learning it... 
Thoughts?
Dave
We don't put much more than 6 quarts in our 67 Arrow.
Matt