i recently changed the fluid in the trans (5spd out of a 78) in a 240z with redline 75-90. i used roughly over 2 quarts. i took the car for a drive and for the first time ever i grinded a 3rd to 2nd shift.... no big deal, but then it happend 3 more times. either by engine breaking or for acceleration out of a corner. i have never grinded a single gear in the car ever. (i do not know what type of fluid was in the trans, but i t did seem thinner.)
now this may be just a strange conincidence, but something doesnt seem right. So, is this something?, or just completely ironic?
Thanks