PaulH wrote:

The IO360 used in the Piper Arrow
runs through the first 2 quarts (out of 8) pretty quickly (2 quarts in
10 hours), then levels off.

My Maule will also go through the first quart pretty quickly if I top it off. Which
is why I *never* put more than 7 quarts in the engine. My Cessna 150 also used to
throw the first quart out, and I quit filling it up once I caught on.

George Patterson
I childproofed my house, but they *still* get in.