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Gear Oil - Redline MT90 good for S2000?

#1 User is offline   Croc 

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Posted 21 February 2012 - 10:57 AM

i need to change transmission oild and want to use something better.

my primary useage of the car is quite agressive and local climate is quite hot - similar to south California.

i had very good expirience with Redline MT90 on Miatas.

so just wanted to make sure that MT90 is for S2000.
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#2 User is offline   speedjunky01 

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Posted 21 February 2012 - 12:04 PM

Honda uses 10w-30 in the tranny

Honda MTF is the best fluid time and time again

Fresh mtf changed regularly will out do any fluid out there.
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#3 User is offline   s2klariat 

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Posted 21 February 2012 - 12:52 PM

You will get a lot of mixed reviews on gear oil. Each transmission is going to react just a little different. I don't use MTF because it shears thin in just a couple thousand miles and gets EXTREMELY notchy. I've found that my transmission works well with GM Syncromesh. I've never used Redline or Amsoil but there are a few peeps here on the forum that have nothing but praise for them. I say try it, and if you don't like it, try something else.
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#4 User is offline   cdelena 

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Posted 21 February 2012 - 02:00 PM

I started using MT-90 when I lived in Texas and found that hard running in the heat often resulted in 1-2 grind until the box cooled down. It seemed to me that MT-90 helped somewhat (I tried others but felt they were less effective in the heat). I continue to use it now in a cooler clime and find it still works great except for being a little stiff on very cold mornings.

#5 User is offline   Croc 

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Posted 21 February 2012 - 02:10 PM

so grinding was before MT90?

#6 User is offline   rrounds 

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Posted 21 February 2012 - 08:12 PM

Here is a post for Motul 300 75w/90
http://www.s2ki.com/...ny-experiences/
c32b uses it and likes it.

ROD

This post has been edited by rrounds: 21 February 2012 - 08:14 PM

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#7 User is offline   alricl 

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Posted 22 February 2012 - 03:01 AM

i used redline didnt like it now using amsoil and liking it. Ive heard from some local guys they had issues with running redline over oem fluid on track days.

#8 User is offline   Leviisbigred 

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Posted 22 February 2012 - 03:18 AM

i have used OEM and MT90....MT90 is way Waaaaaaaay better.. smooth like butter ..you can also use redline MTL, thats the one they have on there site for S2000s..there both GL-4 Gear Oil's i have only used MT90 tho.... trust me when i say it makes a world of a difference ....blaa bla bla OEM :p keep your dinosaur fart oil ,, ill take synthetic oil any day. thats my 2c

Also AMSOIL is awesome too

#9 User is offline   KrazyKarim 

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Posted 22 February 2012 - 03:22 AM

I've used mt90 in all of my s2ks for track duty and it's always held up fairly well and I'd venture to say the temps we see out here in vegas are probably similar to what you are seeing :)
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#10 User is offline   redlineracing 

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Posted 22 February 2012 - 08:13 AM

Lot's of good fluids on the market.I run Amsoil MTF in my 96 GST & 03 S.

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#11 User is offline   takeshi 

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Posted 22 February 2012 - 10:40 AM

View Postspeedjunky01, on 21 February 2012 - 12:04 PM, said:

Honda MTF is the best fluid time and time again

Based on what? I've been happier with Amsoil's MTF. Always qualify what you mean when you say "best".

View Postspeedjunky01, on 21 February 2012 - 12:04 PM, said:

Honda uses 10w-30 in the tranny

No they don't. 10W-30 or 10W-40 can be used as a temporary replacement.

This post has been edited by takeshi: 22 February 2012 - 10:43 AM

#12 User is offline   Croc 

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Posted 22 February 2012 - 12:07 PM

thx a lot for the feeback.
Amsoil and GM are not available locally.
Motul is - but it's very exepnsive here (not that it would've stoped me) and i really didn't like it in my former Miata.

just wanted to make sure that MT90's specs are compatible with S2k gear.

good to hear that it proved ot be good for some of you.

#13 User is offline   Croc 

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Posted 11 March 2012 - 01:28 PM

just to update - i've put MT90.

during cold weather startup (10 celcius) the gear is very notchy.
downshift to 1st or 2nd during fist 10km is difficult.
just do double clutch with throttle blip and it works fine.

after heat up the feel is very good and very smooth.
shifting quality remains consistent during hard drive at mountains.

the bottom line - i like it.

#14 User is offline   boyguan 

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Posted 11 March 2012 - 04:50 PM

I've used both own and mt90 and fin that the mt90 is very notchy. I switched back to oem and it holds up fine. I track the car often as well

#15 User is offline   ikeyballz 

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Posted 11 March 2012 - 05:32 PM

If you're not tracking exclusively, you can mix MTL and MT90 for a slightly thinner (less notchy in the morning) shifts. I used to run 1 qt MTL and the remainder MT90 until my local redline closed down. I run straight MT90 and i hate the notchyness.
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#16 User is offline   Croc 

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Posted 12 March 2012 - 12:19 AM

weel, after warm up there is no notchiness whatsoever - so no problem for me.

#17 User is offline   Leviisbigred 

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Posted 12 March 2012 - 07:09 AM

mmmmm i love it, just have to warm it up

#18 User is offline   B0neSt0ck 

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Posted 14 March 2012 - 04:03 AM

Redline MTL might be closer to a match with honda mtf. I believe the viscocity on Redline mtl was just slightly thicker.

http://www.s2ki.com/...-mt-90-and-mtl/
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#19 User is offline   Croc 

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Posted 14 March 2012 - 07:17 AM

no - MT90 is thicker.

this why it's often chosen for high climtae or/and heavy usage.

#20 User is offline   B0neSt0ck 

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Posted 14 March 2012 - 09:49 PM

View PostCroc, on 14 March 2012 - 07:17 AM, said:

no - MT90 is thicker.

this why it's often chosen for high climtae or/and heavy usage.


Thicker than honda mtf?? I was comparing honda mtf and redline mtl....

#21 User is offline   Croc 

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Posted 15 March 2012 - 04:30 AM

no no - i meant MT90 thicker than MTL.

#22 User is offline   ikeyballz 

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Posted 15 March 2012 - 05:03 AM

So if I ran MTL straight it would be generally closer to the honda MTF? Damn, I want some MTL again. I hope my local NAPA stocks them again...

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