My shiny new John Deere Z915E had a nice puddle of fluid under it yesterday evening when I pulled it out of the garage. Fluid is clear and oily. The transaxle on the left side is leaking but can't tell from where exactly. My question is it common for these units to leak? With only 7.5 hours I'm stunned this thing is already leaking. I checked the fluid level in the reservoir and it's on the max mark so I didn't add any additional fluid. As best I can tell, it appears the leak could be coming from the seal around the axle but I couldn't see it well enough to confirm. Is it possible the system had air in it and burped out of a relief valve I couldn't see? TIA.