3rd-2nd grinding after fluid change

[Troutman]

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

[ph240]

Double check your bottles and be sure what you put in. It sounds like you have the wrong fluid, redline has many different gear oils in a 75/90. I am looking at using Redline MTL in mine but have not as of yet, I have run MTL in a 82 5 speed maxima and a 85 5 speed FWD maxima with great results.

You should call Redline and ask them.

[Arne]

I have Redline MT-90 in my 240Z's 4 speed, and it works great. MT-90 is a 75W-90 designed especially for manual transmissions.

BTW, 2 quarts sounds like too much to me, I thought Z transmissions only took 1.5 quarts or so.

[Troutman]

Double check your bottles and be sure what you put in. It sounds like you have the wrong fluid, redline has many different gear oils in a 75/90. I am looking at using Redline MTL in mine but have not as of yet, I have run MTL in a 82 5 speed maxima and a 85 5 speed FWD maxima with great results.

You should call Redline and ask them.

you are exactly right... i decided to go grab an old bottle just after i posted this.... guy sold me the wrong stuff

there is a huge paragraph on the back of the bottle..(which i didnt read) 2nd to last line "this product is not designed for use in most manual transmission, since the extreme slipperiness may cause gear clash"

i know what ill be doing tomorrow..

thanks for the reply

[Troutman]

i couldnt find any documentation on how much fluid the 78 5 pd took. i found other posts that said the 5peeds took 2.25 qts. and like an idiot i didnt get the car level and add it till it came out the fill hole.... i just put the 2.25qts in. first thing i have ever half assed in this car...:disappoin