can i use redline mt-90 in my rear diff?
#1
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can i use redline mt-90 in my rear diff?
I kno that i can use redline mt-90 in my trasnmission but could i also use it in my diff? If so, how many bottles would i have to get to fill up the tranny and diff? The reason i ask this is cuz I've never done it before and also because I have to order it so I want to make sure I'll have the right amount to work with.
thanks
matt
thanks
matt
#5
knowledge junkie
From their website, it sounds like the best setup is MT-90 in the trans & 75W90 NS in the diff. I'd imagine both are within Mazda's recommended oil weights.
MT-90:
Popular in Nissan, Toyota and Mazda manual transmissions and transaxles as well as other selected applications, this is a 75W90 GL-4 Gear Oil that’s slightly heavier than MTL. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.
75W90 NS
This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid (ie use in regular) differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.
MT-90:
Popular in Nissan, Toyota and Mazda manual transmissions and transaxles as well as other selected applications, this is a 75W90 GL-4 Gear Oil that’s slightly heavier than MTL. Provides excellent protection of gears and synchronizers and its balanced slipperiness provides a perfect coefficient of friction, allowing easier shifting.
75W90 NS
This GL-5-type geal oil doesn't contain the friction modifiers for limited-slip hypoid (ie use in regular) differentials. This makes the transmission synchronizers come to equal speeds more quickly, allowing faster shifting and much easier low-temperature shifting. Can also be used in racing limited-slip differentials where weak spring design causes too much wheel spin.
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ya i read all that but also if u click something else and download the adobe file... the information completely contradicts itself. I could be wrong i read it really quickly... ok so what oil would i use for a LSD?
Also how much fluid does a trasmission need so i know how much to buy?
thanks
Also how much fluid does a trasmission need so i know how much to buy?
thanks
Last edited by bigtymer; 10-27-04 at 02:29 PM.
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#8
knowledge junkie
Since you have a Turbo II (according to your hidden profile ), that would be a Limited Slip Differential. Use this:
75W90
Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.
75W90
Our most popular gear oil, this is the preferred product in nearly all car and light truck differentials, both conventional and limited-slip. 75W90 is preferred for most racing applications. It contains friction modifier which is recommended for limited-slip units. 75W90 Gear Oil can be used in many transmissions and transaxles; however, other Red Line lubricants have better frictional properties for rapid synchronization. Exceeds API GL-5.
#9
For your second question, the differential takes about 1 and 1/2 quarts, so buy 2. I just did my '88 vert, MT90 in trans and 75/90 gear oil in diff. The trans takes about 2.6 quarts.
#11
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The other choice that I use in all my differentials (including my Lexus SC 400 and Toyota V6 Tacoma) is the Redline Superlight weight shock proof.
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This is just kind of an idea I had maybe it would be good to have a thread in the archive going over the best fluids to use. Using the search I was mostly able to find what I needed. It took some time, but it might be a good idea?
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