S2000 Under The Hood S2000 Technical and Mechanical discussions.

trans fluid visco. please

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Old Nov 5, 2007 | 07:00 PM
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Default trans fluid visco. please

I know you guys got sick of oil questions, but in my country there we dont have the options you got. so i dont know what to use..


just got my clutch replaced, Our honda dealer uses motor oil 10w-30..as ive read here its not that good for the trans.

we do not have redline,Honda new MTL, but i think we got GM


so if anyone can give me the trans fluid visco. i would really appreciate it
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Old Nov 5, 2007 | 10:30 PM
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A 75W-90 GL-4 synchro friction modified gear oil will work.
Note the GL-4, don't use GL-5 because some additives to make a gear oil GL-5 rated may not be ok for brass synchro's.

There's always internet / mail order too
I'm sure sending 2 quarts (or 2 liters) of MTF-III is possible.
The same goes for the GMSFM



edit: added the synchro & GM remark.
edit2: its gmSfm, not gmFsm
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Old Nov 6, 2007 | 01:32 PM
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thank you spitfire..

but sure my pedal is alot better than before..but my trans doesnt feel right:S

2-3-4 all sound bad..5-6 is hard to put in gear

i wasnt expecting this at all.. its actually worst than before

So im hoping by changing the fluid i might avoid this problem abit.







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Old Nov 6, 2007 | 10:22 PM
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Engine oil does not have the synchro friction modifiers.
In my owners manual Honda states that it is ok to use 10W-30 (10W-40) in the trans but one should expect notchy shifting.
It should start to shift a lot better into all gears with a proper manual transmission oil.

Strange that an official Honda dealer doesn't have Honda MTF-III.
Ask the Honda importer?

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Old Nov 7, 2007 | 11:09 PM
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Got my self GM, since our honda dealer is GM lol..


havent drain my old oil yet..but what should i be expecting?

Smoother shifting? or same notchy ?

anything else?
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Old Nov 8, 2007 | 05:11 AM
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it will always be knotchy....knotchy transmissions seem to take banging through gears better, but it wony feel like its going to break
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Old Nov 8, 2007 | 09:45 AM
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street_ruler Posted on Nov 8 2007, 04:11 PM
it will always be knotchy....
No it won't be.
knotchy transmissions seem to take banging through gears better, but it wony feel like its going to break
Its the direct linakge into the gearbox that makes you feel a lot more.
If you shift at higher revs, it will be as smooth as a hot knife through butter.

attack666 Posted on Nov 8 2007, 10:09 AM
anything else?
If the clutch was installed properly = splines cleaned and lightly coated with EP grease, clucht disk splines lightly coated with EP grease, throwout & guide greased, clutch fork greased, slave properly bled, ect...
Then it should be ok.

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Old Nov 8, 2007 | 10:50 AM
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Originally Posted by SpitfireS,Nov 8 2007, 10:45 AM
street_ruler Posted on Nov 8 2007, 04:11 PM

No it won't be.

Its the direct linakge into the gearbox that makes you feel a lot more.
If you shift at higher revs, it will be as smooth as a hot knife through butter.

attack666 Posted on Nov 8 2007, 10:09 AM

If the clutch was installed properly = splines cleaned and lightly coated with EP grease, clucht disk splines lightly coated with EP grease, throwout & guide greased, clutch fork greased, slave properly bled, ect...
Then it should be ok.

yes it always be knotchy its the nature of the beast.


id also bet that the synchros on the s2000 have fewer teeth than those of any other trans given the fact that if you have ever accidentally ground a gear in these cars, you can feek the teeth biting and they seem to be fewer in number
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Old Nov 8, 2007 | 11:23 AM
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street_ruler Posted on Nov 8 2007, 09:50 PM
yes it always be knotchy its the nature of the beast.
If you mean the "beast" at the stick.. then maybe

Serious: the direct steel rod shift linkage makes you feel the synchro do its work.
But that is not notchy IMO.

If your clutch is working properly your shifts should be fine.

id also bet that the synchros on the s2000 have fewer teeth than those of any other trans given the fact that if you have ever accidentally ground a gear in these cars, you can feek the teeth biting and they seem to be fewer in number
Once again, its the direct linakge that gives a lot of feedback.
1st gear synchro has 40+ teeth.
Maybe you're confusing the S2000 gearbox with an unsynchronized dog-box.
Maybe you're treating your S2000 gearbox like an unsynchronized dog-box?
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Old Nov 8, 2007 | 11:50 AM
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I have noticed that when I shift at RPMs lower than 3K and don't rev. match it will feel 'notchy', so I have learned to rev. match, otherwise when I rev hard and fast it shifts fine. IMO the synchroes were designed to be shifted at high RPMs. I have owned many Hondas but they have been FWD and never had this problem.


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