Don't mean to worry you. I had a 95 Saturn that always consumed 1/2-1 quart between oil changes, even from new. I sold it with 110k miles on it and it ran as good as day one. It consumed no more than that when sold. You are probably going to be okay, but 2 quarts low is dancing with the devil. Don't let it get below the the L on the dipstick and you'll be fine.