Bravo 100TD V reg... 80k approx mileage...Had about one year now...
Not sure as i have no books with it. for a oil change??

Only done 8k in one approx...Had oil change oil filter/ fuel filter/ air filter and cam belt change done when i bought it....

Been told that some diesels can go for 20k without oil changes? is this true? not sure i beleive it?
Thanks.....

Nooooo

I'd say 6-10k between changes if using quality oils. Don't go over 8k on basic oils.

change oil at least every year or 10k, whichever comes first.