Well all thru the mowing season all worked well except for the unseen crap that pops up, now that I am getting it ready for winter duty attaching the snow blade, wheel weights etc. I noticed that the hydro is making more noise than normal especially in reverse. Could this be due to low fluid? I haven't had the chance to check it yet as I just got done last nite with the weights and such and noticed this noise when backing it into the shed.