I have a '97 Disco with grey smoke billowing out the back when I excellerate espcialy up hill. I suspected the turbo.. sure 'nuf.. oil leaking prety bad. What are my options?? how pricey? Oh, and I live in Africa and no Landy dealer near by. Any thoughts on how I can keep it limping along untill I am able get a new one shiped in? How much Damage can I cause by running it this way?