Troutman Posted September 1, 2007 Share Posted September 1, 2007 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 Quote Link to comment Share on other sites More sharing options...
Troutman Posted September 1, 2007 Author Share Posted September 1, 2007 figured it out....wrong fluid. got sold the wrong stuff and i didnt double check Quote Link to comment Share on other sites More sharing options...
Trevor Posted September 4, 2007 Share Posted September 4, 2007 Brass synchros need gear oil viscosity. Was is ATF you put in? Quote Link to comment Share on other sites More sharing options...
Troutman Posted September 4, 2007 Author Share Posted September 4, 2007 Brass synchros need gear oil viscosity. Was is ATF you put in? i was sold the 75-90, which i figured out would cause gear clash because of its slipperiness. drained it and filled it with MT90 and have no more problems Quote Link to comment Share on other sites More sharing options...
Powerglide Posted September 5, 2007 Share Posted September 5, 2007 I use Redline MT90 at their recommendation and am thrilled with the results! Quote Link to comment Share on other sites More sharing options...
djbit Posted October 20, 2007 Share Posted October 20, 2007 I just put about 2 quarts of the 75-90 red line on mine...it did seem a bit thin. I'm going back and getting the MT-90 instead. Quote Link to comment Share on other sites More sharing options...
Powerglide Posted October 21, 2007 Share Posted October 21, 2007 I put in some some Redline MT 90 and it stopped some minor gringing. Also thrilled with the results! Quote Link to comment Share on other sites More sharing options...
nbesheer Posted October 21, 2007 Share Posted October 21, 2007 I was told that it would be the difference between GL-5 and GL-4 which is what you need. Quote Link to comment Share on other sites More sharing options...
palauoriginal Posted October 22, 2007 Share Posted October 22, 2007 i just put some lucas tranny oil in mine. pretty good. Quote Link to comment Share on other sites More sharing options...
djbit Posted November 5, 2007 Share Posted November 5, 2007 I Put some MT90 and I get grinds from 2 to 3rd and reverse. I may just need a new tranny since the clutch was recently replaced. I should proabably check the slave cylinder before going crazy and buying stuff. Quote Link to comment Share on other sites More sharing options...
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