ticker Posted September 30, 2009 Share Posted September 30, 2009 (edited) So its been a few days since I put the Sta-Lube 85w-90 GL-4 in the transfer case transmission. (Manual calls for the impossible to find 75w-90 GL-4) As I was forewarned, when cold shifting into 1st and 2nd is a bit stiff. I'm not really thrilled with this. I also heard a bit of a wine for the 1st half mile or so this morning. It was cold(relatively) last night, about 50 F and I'm concerned what is going to happen when it gets to be 10 F outside. I found out that JEG'S, which is right down the road sells REDLINE MT-90 which I've heard good things about. Anyone running this in their R50? Moved from original thread due to lack of response/ subject change Original thread http://www.nissanpathfinders.net/forum/index.php?showtopic=24016 reason for edit...brain fart, thanks steve Edited October 1, 2009 by ticker Link to comment Share on other sites More sharing options...
Precise1 Posted September 30, 2009 Share Posted September 30, 2009 I know that plenty of people run that in their WD21's with the identical tranny... B Link to comment Share on other sites More sharing options...
tekazgtr1984 Posted September 30, 2009 Share Posted September 30, 2009 (edited) My buddy runs redline in his '98 R50 and swears by it. Edited October 1, 2009 by tekazgtr1984 Link to comment Share on other sites More sharing options...
ticker Posted October 1, 2009 Author Share Posted October 1, 2009 (edited) cool, thanks for responding. I'll be interested what shifting feels like at 6:30 tomorrow morning as it is supposed to go down to 38F tonight. Edited October 1, 2009 by ticker Link to comment Share on other sites More sharing options...
Precise1 Posted October 1, 2009 Share Posted October 1, 2009 I did add 1/2 qt of Lucas oil stabilizer. Perhaps that made the difference between a little stiff shifting and really stiff/grinding issues... I don't ever deal with anything less than 20F though. B Link to comment Share on other sites More sharing options...
ticker Posted October 1, 2009 Author Share Posted October 1, 2009 I did add 1/2 qt of Lucas oil stabilizer. Perhaps that made the difference between a little stiff shifting and really stiff/grinding issues... I don't ever deal with anything less than 20F though. B Well I left at 6:30 this morning and It wasn't as bad as I thought. It was cold enough to frost the lawn and windows, but the shifting didn't seem to bad. Stiffer than it was with the old oil but I can live with it. No whine this morning. The other day it didn't want to up or down shift into 2nd or 1st very quickly, like the gears weren't synchronizing fast enough. Maybe it just needed a few days/miles to work itself in? I may try the lucas first as I don't really feel like changing all the oil again, although I am getting pretty good at it. Thanks Link to comment Share on other sites More sharing options...
Steve_RI Posted October 1, 2009 Share Posted October 1, 2009 You mentioned GL-4 in the transfer case at the beginning of the thread, do you mean the transmission? The reason I ask is because you are talking about notchy shifting. Link to comment Share on other sites More sharing options...
ticker Posted October 1, 2009 Author Share Posted October 1, 2009 You mentioned GL-4 in the transfer case at the beginning of the thread, do you mean the transmission? The reason I ask is because you are talking about notchy shifting. DOH, I meant the transmission I don't know why i wrote transfer case. I'm going to fix that. Link to comment Share on other sites More sharing options...
Steve_RI Posted October 2, 2009 Share Posted October 2, 2009 I figured it was the transmission. MT-90 is a little thick compared to the OEM stuff, which has a viscosity of 12.1cSt. MT-90 is 14.0 or so cSt. Now this wouldn't matter if you were in a warm climate, but I remember when it got cold, my shifting got a little notchy. The easy thing to do is add a quart or more of Redline MTL. MTL has a vis. of 11.1cSt. This will get you closer to the 12.0-12.5cSt range, which is optimal for these transmissions. These two GL-4 fluids mix just fine. Right now I have the OEM stuff and my shifting is fine in any temp here in New England. Link to comment Share on other sites More sharing options...
Precise1 Posted October 2, 2009 Share Posted October 2, 2009 Assuming that the viscosity mixing is a linear function, wouldn't 2 qts mt-90 and 3qts MTL put you at 12.2ish cSt?? Is my math or comprehension lacking?? B Link to comment Share on other sites More sharing options...
Steve_RI Posted October 2, 2009 Share Posted October 2, 2009 Assuming that the viscosity mixing is a linear function, wouldn't 2 qts mt-90 and 3qts MTL put you at 12.2ish cSt?? Is my math or comprehension lacking?? B Nope, your math is good; viscosity mixing is linear. MT-90 and MTL also use the same base fluid. Another tidbit is that the Nissan stuff is a 75W/85. Link to comment Share on other sites More sharing options...
ticker Posted October 17, 2009 Author Share Posted October 17, 2009 Update- Its been unseasonalbly cold here for the past week and cold shifting has been just horrible. Today was the fist day I've had to put in the MT-90. Hopefully this will take care of the problem. On the bright side I've changed the gear oil 3 times in the last 30 days. The first time I was covered in dirty oil and had to throw out the shirt and jeans I was wearing because they smelled so bad. Today I did it in less time, only went through one pair of gloves, and only managed to get a few drops on the floor. Thanks for the help. I'll let you know how it feels when cold. Link to comment Share on other sites More sharing options...
Kittamaru Posted October 17, 2009 Share Posted October 17, 2009 Want to come to PA and help me do mine? Link to comment Share on other sites More sharing options...
ticker Posted October 18, 2009 Author Share Posted October 18, 2009 (edited) Too bad you don't live somewhere hot and with a beach. I need a vacation. Its really not to bad to do This is my painless method Here's my set up. One hand pump like this(I don't think I spent this much but you get the idea) http://www.northerntool.com/webapp/wcs/sto...08074_200008074 one or two 2 2/2 gallon buckets. I found them at target for $2.50 each surgical type gloves 1-make sure you have the right fluid! 2-test the fill plug to see if it is going to come out but don't remove all the way. This is so the overfilled fluid doesn't come pouring out all over you and the floor(trust me this sucks) 3-put bucket number one under drain. open drain plug, let drain for a few minutes. replace drain plug 4-If necessary jack up appropriate side of vehicle, mine is the passenger side. This is so you can overfill transmission a bit if required. 5-take out fill plug, put right end of pump into fill hole. I wedge it in using the exhaust so it can't back out. 6-Use other bucket as a safety for the bottle of fluid. Place open bottle into bucket. This way it can't fall over. Sit comfortably next to vehicle and pump till its empty, continue until fluid reached recommended level 7-replace fill plug 8-rock on Edited October 18, 2009 by ticker Link to comment Share on other sites More sharing options...
Precise1 Posted October 18, 2009 Share Posted October 18, 2009 A man can never have enough latex gloves or buckets/catch pans... Trust me!! B Link to comment Share on other sites More sharing options...
ticker Posted October 22, 2009 Author Share Posted October 22, 2009 A man can never have enough latex gloves or buckets/catch pans... Trust me!! B No Doubt! Just wanted to say that the shifting is now smooth with the MT-90 in the transfer case. Its amazing how bad it felt before with the sta-lube. Thanks for the help! -T Link to comment Share on other sites More sharing options...
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