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[Z06] transmission/differential fluid

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Old Jun 28, 2011 | 08:36 PM
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Default transmission/differential fluid

So my new m12 transmission is on the way. What fluid should I buy for it, and what fluid for my diff.
How much power can a stock clutch hold
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Old Jun 28, 2011 | 09:25 PM
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???? please?????
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Old Jun 28, 2011 | 10:22 PM
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Amsoil...check with forum vendor subdriver for more info.
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Old Jun 28, 2011 | 11:53 PM
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Originally Posted by spdislife
Amsoil...check with forum vendor subdriver for more info.
+1
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Old Jun 29, 2011 | 01:15 AM
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I would just get the standard GM fluids. That is what I used; however AMSOIL is good stuff too.

Your clutch...rated for 450rwhp, but I would say that realistically that once you are running near 400 rwhp or a little more, it is time to upgrade. I have a cammed Z with LTs, about 410-415 rwhp and I just went to the LS7 setup. I have an extra for sale...brand new. I don't really drag my car, just some spirited driving from time to time.
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Old Jun 29, 2011 | 08:18 AM
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Amsoil !!!!!!!!!
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Old Jun 29, 2011 | 12:35 PM
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Originally Posted by MTPZ06
+1
+2

Many of us use the Amsoil Torque -Drive fluid.I've used many fluids over the past 5 yrs,and it's the best I have used.
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Old Jun 29, 2011 | 01:49 PM
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can i get amsoil at my local automotive store???
where do i get it
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Old Jun 29, 2011 | 02:02 PM
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Originally Posted by michaelfrench
can i get amsoil at my local automotive store???
where do i get it
Find a local distributor through the Amsoil website or you can purchase it directly on their site and have it shipped to you. Most local auto shops do not carry Amsoil products.
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Old Jun 29, 2011 | 02:12 PM
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so exactly what should i get, im gonna order some now and how much of it
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Old Jun 29, 2011 | 03:08 PM
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If you look up your car's make and model on their website, all the fluid capacities are listed along with all of the fluids weights and part numbers for everything they sell for your car. When I did mine though, One gallon of ATF was sufficient for the trans and 2 quarts of gear oil for the diff did it. I just switched everything to amsoil and noticed significantly smoother transmission operation with their ATF. Good stuff, and if you can, get signed up with a dealer because you recoup the cost of being a preferred member ($20/yr if I recall correctly) easily with the savings on your first purchase.
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Old Jun 29, 2011 | 04:46 PM
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Originally Posted by michaelfrench
So my new m12 transmission is on the way. What fluid should I buy for it, and what fluid for my diff.
How much power can a stock clutch hold

A forum vendor who builds Tremec transmissions tested various fluids in a high horsepower standing mile Corvette. The only fluid that prevented the trans gears from being damaged under this Corvette's high horsepower was ROYAL PURPLE's SYNCROMAX.

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Old Jun 29, 2011 | 05:19 PM
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There are a couple of AWESOME DIY write-ups on this subject here. Do a search and you should find the pictures and it list the amounts. I did this a couple of weeks ago and it was very easy to do. Recommend getting a little hand pump to put the fluids in the DIFF and TRANNY.
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Old Jun 29, 2011 | 06:46 PM
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Originally Posted by michaelfrench
so exactly what should i get, im gonna order some now and how much of it
Lookup "subdriver" here on this forum.He is a supporting vendor.I know him and he's a great guy & Amsoil dealer.

The trans takes almost a gal,so order the gallon.Might want to order the fluid pump too.It fits the jug and works great.

IMO,ths is a pic of what you want.

\db2
carolina
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Old Jun 30, 2011 | 10:07 PM
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well i couldn't get amsoil in time so i opted to mobil 1 synthetic dexIII atf. is that a good one?
i bought 4 quarts, is that enough? does the diff take the same thing
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Old Jul 1, 2011 | 12:23 AM
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Originally Posted by michaelfrench
well i couldn't get amsoil in time so i opted to mobil 1 synthetic dexIII atf. is that a good one?
i bought 4 quarts, is that enough? does the diff take the same thing
Diff and Tranny do not take the same fluids. Recommends for three quarts of the correct fluid for the diff and four for the tranny. You will probably only use 3.5 quarts for the tranny and a little over 2.5 for the diff.

Make sure you put the correct fluids in each and do NOT switch them up or mix them up for that matter.
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Old Jul 1, 2011 | 12:44 AM
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Is the Mobil 1 that I got right for the transmission which one for the diff
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Old Jul 1, 2011 | 07:52 AM
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Many of us Z owners run the Amsoil Severe Gear 75-90 for the diff.

\db2
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Last edited by dbaker; Jul 3, 2011 at 11:23 AM.
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Old Jul 1, 2011 | 09:41 AM
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I wrote a DIY procedure for the 6 speed and diff fluid change.

http://mysite.verizon.net/res0aae8/webpage.html

Scroll to the bottom for the links. I used AMSOIL.

Toque
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Old Jul 1, 2011 | 09:53 AM
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Guys I understand amsoil is best but it won't make it here in time lol. How is the royal purple gear oil? So 75-90
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