Hey guys at work and I'm working on a 6.7L and this truck eats about 2 quarts of oil in about 700 miles.

It has no leaks and no blowby and if you can believe it no smoke out tailpipe what so ever.

It has a Mini Max tuner and a 2nd gen swap, CCV delete, EGT and DEF fully deleted.

The fresh rebuilt motor only has maybe 3500 miles on it.

My shop needs this headache gone but we can't seem to figure out what is going on with it.

Any advice anyone?