It started out just being annoying to have to put a quart in between oil changes, but now that I'm up to 180k miles it's become extremely excessive and expensive to keep oil in it. I am having to add a quart in less than 500 miles or 3 quarts every 1000. This is freaking stupid. And to top it off my fuel mileage has plummeted to 15 miles to the gallon.

Car was knocking and stalling. Took it back to the dealer and couldn't get any paperwork or answer to what was wrong or fixed. Picked it up and problem still occurred. Checked the oil and it was completely dry. Went and had oil changed and it seemed fine. 3 days later and oil is gone already but no visible leaks at all.