My garage door could wake up someone sleeping five miles away.  White lithium grease was recommended online by a garage door manufacturer/installer, and I bought this based on CRC's reputation.  I used almost the full can on a double door, and it quieted the door to the point that I received a compliment from a friend that wasn't familiar with how noisy my door had been.  My wife was also very pleased.  Depending upon the size and number of your garage doors, you may want to order two cans.