Sorry man you have no idea what you are talking about. There are problems with the MT-82 that you don't normally see in manual transmissions from other manufacturers. There's a difference between notchy and outright grinding and 2nd and 3rd gear lockout. Do some research on this transmission and you will be enlightened. The TSB has worked for some people but not for many as it's a band aid not a fix.
Again, this thread was started because of the cold shifting issue. This is not an issue. And you are right that putting lighter fluid in it is a band-aid. The real fix is to let it warm up and when you shift, to hesitate for a split second and let everything sync up and your shifts will be ok. Atleast for a few minutes until things warm up.
NOW, if you are still having these issues all the time, then yes you have REAL issues. BUT for the last time, those are not the issues the OP brought up, I replied to and is covered in the TSB. Can you get that? Is that plain enough English for you?? Putting lighter weight trans
fluid in this car will make your trans
whine more and will decrease the life of the internals of your trans
. This would be like removing the 5w-30 oil from the car and adding 0w-20. Sure it will circulate quicker and keep things quiet at cold start, but the viscosity is lower all around and will not keep your internals protected from the normal friction wear and tear that the heavier oil will. I know there are other trans
issues out there, but this is not one of them. This is people that dont understand that you need to let the engine and trans
warm up before you go whomping on them. Pull that stick back and put enough pressure on it to let it pop into the next gear. It will feel notchy, but should not grind. Now if you just yank it back into the next gear when its cold, it will grind everytime. All those other cars I had that had tremec transmissions in them did the same exact thing.