Mine used oil from day one, and we broke it in right by plowing sod with the 710. Dad bought it new in September of '73, It would use a quart a day or more when working hard. We were told that was normal, but I don't remember why. It ran great and stayed together, even when it was cranked to 130 so. I think the later models had less consumption - not sure if they started using different rings or what.
One thing we did not do was run IH oil. I kind of think that might have made a difference, but no one really promoted it to us.