our 2009 MDX went with redline D4 with megnafine fiter from new. start using DW1 for a short period when I run low on D4 stash in late 2016 or early 2017, I was not able to find Maxlife in Canada at the time and got a deal on DW1 from dealership here.. didnt like DW1 and pickup gallons jug of Maxlife at Buffalo area. I like the drive feeling with Maxlife the most; Redline D4 give a few second of sensation of "holding" or hang on gear when i left go the throttle, DW1 has a rubbery feeling especially in hot weather, for My MDX feel more direct with Maxlife, more lively. so far has about 120,000km. I am not sure about D4 price now, but I reserve remaining D4 for the rear differential on MDX, it was originally spec for Honda ATF-Z1 .