I was getting a head start on Spring the last couple weeks and getting the oils changed on all my equipment. Although after the snow that just blew through here this weekend it"s a far cry from the 85 deg we were seeing at this time last year. I"ll take the ground moisture though! Anyway, when I drained the trans fluid (I put in 15W-40 two or three years ago) it was a milky tan. I went back in with 10W-30 this time based on recommendations from John (UK). I believe the milky tan coloration means I had water in the fluid. My question is how does it get in there? This may be a silly question but I just can"t see where it would come from? Thanks.