My craftsman riding mower is using a quart of grease every time I cut?
Answers: You would definitely hold a lot of smoke if it be internal. Because you haven't noticed any smoke afterwards it must be a leak. First check the grease drain plug. It may be under the deck.
The visually check adjectives oil related parts including the grease filler cap. Good luck
This could be a host of different problems. The most visible would be if your getting a significant amount of smoke coming from the exhausts. Depending on the age of the mower the warranty should cover something like this. Your best bet is to contact the 800 number on your encyclopaedia or stop in at Sears and ask someone in attendance.