Hello all, Drained/refilled the transaxle and replaced the hydraulic filter on my 2010 X530. Pretty straight forward, but noted that sump indicated full at just slightly more than 4 1/2 quarts and everything I read says that 5.6 quarts should be required. I operated the tractor in forward and reverse, raised and lowered the deck and everything appears to be operating normally. Am I missing something? Thanks in advance for any insight that you can provide. Bob