Hello, At 50,050 miles 3.125 qts. of darkened but still "transparent" red transmission fluid drained from my brother's 2007 Odyssey Touring when I removed the plug. The fluid did not smell burned at all; it just smelled used. It had no "peppermint" smell of fresh fluids from days gone by either. The fluid looks all but completely black now that it's in a gallon, frost clear windshield washer jug. We replaced it with Honda DW-1 fluid. At the end of February, when his oil change interval comes around, I intend to drain the transmission's sump again. My question is whether or not it's prudent to drain & fill the sump again BEFORE he makes a 2,000 mile round trip at the end of this month. Should I save a sample of each drain so I can compare the clarity? The vehicle shifted quite smoothly both before and after today's sump dump. There was a light coating of powder-fine metal on the plug's magnet. Any and all comments are welcome. Kira