I've decided to do a mix of 3-1 motul to redline heavy, would do andrewtechs mix only if I didn't already have an extra 3 jugs o motul. After contacting them directly they highly recommend their mix of 3 to 1 redline/motul. Given their highly respected feedback as a subietech I trust their recondition and experience. Nice thing is I have no trans or gear issues, I just want a quality fluid for this 5mt.