Disco 4 (LR4) Smoke on Start Up - Losing Oil

Evening,

When starting my 2015 Disco 4 I get a plume of whiteish smoke....goes away pretty quick though. Saying that i have been losing a good bit of oil over a few months...no sign of oil leak. Just had full mot etc and everything came back perfect. Anyone any ideas? Also if i plant my foot on the accelerator i get a bit of smoke out the back too.

Thanks in Advance.

There is a mod for the turbo oil drain pipes.
Do a Google search? You will find more info