My 91 Si seem to be using an obscene amount of oil all of a sudden. I am up to about a quart every 500 miles, it was a quart about every 12-1500 miles within the past 4000 miles. With this excessive useage should I see tons of blue smoke while driving? I dont. I do see a little if Im on it WOT though. I havent really noticed any major leaks under the car, on the ground either? It seems that the radiator ond the front, inside lip of the hood seem to have a film of sticky oil. It there a chace it could be leaking around the VC while driving? ANy other ideas?