[euro911sc]

Never heard of using ATF to clean your engine out...

In order to get the oil in the cooler/lines out on a cold engine you will have to open the lines at the t-stat. The t-stat threads are VERY delicate and its not one of the easier things to do. You can buy a steel insert to make this easier the next time you want it done... You can then drain the lines and the cooler.

If you can heat the t-stat or drive the car till its hot it will open, but you still have the problem of some oil trapped in the lines and I think you will have to park on an incline to get the oil out of the cooler... then you still have a smiggen left in the tank as the drain hole will not be the lowest point in the tank... but its not much.

You might just consider changing the oil... driving for a while... change the oil again... Will cost more, but easier.

Aloha,

michael