Like swoop says some engines use a lot of oil while running in, it just depends what make it is?
I remember one of my customers having Linde H50D's with air cooled Deutz engines and they used a horrific amount of oil while running in.
It was a 24 hour operation and if the drivers didn't check the oil they could run them off the dipstick in a week, but when they run in they were fine..
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.