WHere do you guys buy the 0000-FZ-113E-01 fluid. I see Amazon sells for $19 a quart. I don't see it on Med Mazda site where i usually buy mu oil and filters. is it ok to pour all 4 quarts in the fill or shoudl i aim for exact drain and fill measurement? I want to change it at 50k miles. CX-5 started doing a harder shift from P to 1 and sometimes form 1 - 2 at about 30k miles. It only does this when car has been sitting unused over night.Than doesnt do it anymore during stop and go. Im reading reviews of folks claiming transmission shifts smoother after a drain and fill.