I found the redline MT90 improved second gear a bunch too. I'm running it in my current $107 junkyard R151F transmission that was abused until it broke. ($50 for the broken tranny, and $57 worth of parts.) I didn't want to put any more money in a junk transmission, but it works OK so I filled it with redline MT-90 and have been driving it for what? 5 years?