C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Which ATF?

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Old Jun 9, 2002 | 11:13 AM
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Default Which ATF?

Which automatic trans. fluid should go into 4L60?
(Manufacturer and type)


[Modified by Sliding, 4:15 PM 6/9/2002]
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Old Jun 9, 2002 | 02:11 PM
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Default Re: Which ATF? (Sliding)

regular Dexron III i would guess, dont know how much it matters as to what manufacturer
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Old Jun 10, 2002 | 11:44 AM
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Default Re: Which ATF? (vader86)

So it's only important that it's Dextron III.
It doesn't matter if I mix different manufacturers?

Is Dextron III mineral or sinthetic oil?

Could somebody read specs that are written on Dextron III packing and send it to me, it will help me to find it in Croatia.

Thanks!
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Old Jun 10, 2002 | 01:30 PM
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Default Re: Which ATF? (Sliding)

Dextron III is not synthethic.
Dextron is a rating class that GM uses. I believe Fud uses what they call Mercron.
Mixing of different stuff in generally is not a problem, but if your doing a fluid change, you will want to use all the same stuff. Mixing can be risky.
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Old Jun 10, 2002 | 02:13 PM
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Default Re: Which ATF? (ZylaRace)

I know what you are saying, but problem is that I don't know
what fluid is in now, and I would like to change it.
From what I've read on forum so far it's hard to change all of fluid
because it stays in converter.

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Old Jun 10, 2002 | 03:17 PM
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Default Re: Which ATF? (Sliding)

There are several different types of fluid. as already been stated, you will used a Dexron III fluid, which can come in synthetic blend through Royal Purple, Redline, Amsoil, etc. Other manf. such as Chyrshler use ATF + 3, Mercon V , or Type F.
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Old Jun 10, 2002 | 03:39 PM
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Default Re: Which ATF? (Sliding)

Most likely you have some knockoff brand of Dexron III. Just change the fluid with whatever you wish, as long as its Dexron III. Synthetic wouldnt be a bad idea and i think it will mix with any other fluid.
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Old Jun 10, 2002 | 04:06 PM
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Default Re: Which ATF? (vader86)

Just a note, all ATF's are compatable; however, its not recommended and should only be used in an emergency. Mixing F-type and Dextron can turn your tranny into a neck snapper or slush box. Stick with what your owner's manual says.
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Old Jun 10, 2002 | 07:06 PM
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Default Re: Which ATF? (Rick86)

So, i guess if I go with any Dextron III it should be O.K.
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