how does oil get into the cat and exhaust, now burning oil throught exhaust, can you tell me what damage this can cause please and how long will it take for the exhaust to stop smoking?

 

oil in cat, maybe from the KY jelly used, has the cat maybe drunk some oil in the garage?

oil in exhaust is probably worn turn seal or rings, or possible breahing very heavy,

 

What car is it?

 

mondeo mk2 2lt auto ghia, that has just had a replacement engine less than a month ago

 

Give a better and more specific timeline of what happened, work done and why it was done. It will help anyone trying to help.

But without such information, the quickest answer is, if there is oil getting from the engine into the cat, then the engine is f**ked.

More information required though.

 

If oil is getting from the engine into the cat, then the cat is fucked.

Cats should only drink water, or milk. But never oil

 

I wouldnt go as far to say its fucked without knowing exactly where its coming from lol

 

If oil is in the cat, it means it's been in the cylinders, so something is fooked.

 

Cat is probably goosed as well, they don't like oil at all.

 

Doesnt matter where it has come from....the only thing attached to the cat is the engine...so something is fucked ! lol