While I share the preference of many on this thread for the 'correct' pronounciation (proNUNciation?) as: New Clear (after the albume "New Clear Days" don'tcha know), the facts of the matter are that English is a street fightin' language of long-standing. Modern dictionaries often list the Nu-cu-ler option as a valid alternative, made so by usage.
I find it hard to listen to, but there y'go. I've said 'aluminUM'all my life.