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Discussion Starter #1
Well as the weather is getting colder i find it a lot harder to shift gears and it's not as smoothe as when it was hot out. I have the MT-90 fluid in there now. Is it better to have like a stock fluid in there when its cold or the MT-90?. I have had it in for about 20,000 miles, is it just time to change it? Also i noticed since i installed my twm short throw it doesnt shift half as good, maybe ill switch over to the mazdaspeed.
 

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Well as the weather is getting colder i find it a lot harder to shift gears and it's not as smoothe as when it was hot out. I have the MT-90 fluid in there now. Is it better to have like a stock fluid in there when its cold or the MT-90?. I have had it in for about 20,000 miles, is it just time to change it? Also i noticed since i installed my twm short throw it doesnt shift half as good, maybe ill switch over to the mazdaspeed.
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If you switch to the Mazdaspeed. I will buy your TWM shifter.
 

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Discussion Starter #3
I sent you a pm.
 

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I have the Mazdaspeed shifter and run MT-90. It is a little harder to shift when it's cold outside, but after a few minutes of driving, it's back to normal. Normal meaning better than the stock shifter with factory fluid.
 

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I haven't used the TWM, but the Mazdaspeed is a nice choice with the exception of 5th gear - doesn't seem to alter it compared to 1-4, so it's a small adjustment. But, and I don't know much about the shift linkage in the newer cars since it is not the same as linkage in say a 626 (which is totally underneath the car versus in cabin), if the TWM alters shifting as it does for the older style cars then the Mazdaspeed is a much better choice.

In a nutshell (for older cars anyway) the TWM altered the angle that the linkage interacted with the tranny instead of *only* lowering the height of the shifter which had the potential to accelerate damage to the transmission.

..I really need to look into how the newer linkage works/interacts. *Adds to list*
 

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Discussion Starter #6
Is there a better fluid than MT-90 for winter time or am i just going to have to suffer shitty shifting?
 

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I live in New Jersey and just changed my trans fluid to MT-90 this weekend. I did notice that when it is cold in the morning with the stock shifter, it is a little tuff to get into reverse and 1st gear. but after about 5 minutes, there are no problems with shifting.
 

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I haven't used the TWM, but the Mazdaspeed is a nice choice with the exception of 5th gear - doesn't seem to alter it compared to 1-4, so it's a small adjustment. But, and I don't know much about the shift linkage in the newer cars since it is not the same as linkage in say a 626 (which is totally underneath the car versus in cabin), if the TWM alters shifting as it does for the older style cars then the Mazdaspeed is a much better choice.

In a nutshell (for older cars anyway) the TWM altered the angle that the linkage interacted with the tranny instead of *only* lowering the height of the shifter which had the potential to accelerate damage to the transmission.

..I really need to look into how the newer linkage works/interacts. *Adds to list*
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The TWM shifter does alter the angle of the shift linkage cables. There have been a few people who have had issues with the clips that hold the cables in the tray because of this. The extra stress has also caused a few cables to break, if I remember correctly.

Is there a better fluid than MT-90 for winter time or am i just going to have to suffer shitty shifting?
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You could try Royal Purple. I'm not sure if the results would be any better though.
 

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Discussion Starter #9
I take it the MT-90 is better then stock fluid for the colder weather then?
 

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I take it the MT-90 is better then stock fluid for the colder weather then?
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MT-90 is definitely better all around. I suggest Royal Purple because you likely want something that can be used year round so you don't have to bother swapping the fluid. I wouldn't put MT-90 in for the spring/summer/fall and then switch to stock fluid for the winter. If I didn't like MT-90, I would find something that worked all the time.
 

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Hey 06Mazda6s,

Wanted to know if you were still interest in selling the TWM short throw. Let me know.
 

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MT-90 is definitely better all around. I suggest Royal Purple because you likely want something that can be used year round so you don't have to bother swapping the fluid. I wouldn't put MT-90 in for the spring/summer/fall and then switch to stock fluid for the winter. If I didn't like MT-90, I would find something that worked all the time.
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I second that statement :D , I just switched from Redline MT-90 to Royal Purple and the shifts seem to be much better.
 

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hey, do you guys have the exact fluid name from royal purple to buy? im gonna swap out my trans fluid before the next season of racing, redline didnt impress me much.
 

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hey, do you guys have the exact fluid name from royal purple to buy? im gonna swap out my trans fluid before the next season of racing, redline didnt impress me much.
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Royal Purple Max-Gear. It's available in different viscosities. I believe the part number for 75W-90 is 831-01300.
 

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I use royal purple in the tranny since 1500 miles and no problems or hard shifting. Put it in Feb 2006..
 

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If the MT 90 is just 90 weight gear oil, then yes it is going to be harder to shift than stock, cuz unless I am wrong the stock is a multi viscosity oil.

You would be better off switching to a synthetic multi oil than just 90 weight.
 

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Does the Mobil 1 say anything about being recommended for use in manual transmissions with soft metal parts? That is one of the reason I had steered away from it, Valvoline Synpower, and several other gear oils that I thought looked good. Most all of them talk about use in axles and heavy duty apps etc, but not much about manual transmissions. I bought some RP Maxgear to try as it specifically is a GL4/GL5 fluid that is recommened for transmission use and says it is noncorrosive to soft metals in transmissions. Most of the other fluids are only a GL5 rated fluid and don't say anything about soft metal compatibility.
 

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Well... as long as it meets the manufactures level of use you will be fine. The soft metal sounds like a marketing thing. I think the only soft metal is the syncros typically. And manual trannies are made to run think fluid. I know peps on this board have used mobil, maybe one of them will speak up. I plan on changing mine soon, and I will probably use mobil, as their oil has done wonderful so far. With almost 50k miles the top of my engine I can see through the oil cap still looks brand new.
 
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