My 2005 TL aspec 225 K , keeps burning/leaking oil I keep an eye on the levels , however the coolant seems to go down every other month and I cant see a leak , it runs fine otherwise , any suggestions? doomed?

 

When was the last time the water pump was changed?

 

Had similar symptoms - needed to add about 100ml each month. However couldn't identify the leak. It lasted 4 or 5 year untill this year when my radiator finally broke and ATF mixed with coolant.
Take torch and check carefully the radiator for microleaks, that's can evaporate without dropping on the ground.

 

Make sure you don't have any forbidden milkshake in your oil or trans fluid