Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

transmission oil?

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Old Mar 15, 2007 | 01:04 PM
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Default transmission oil?

what is a good transmission oil to use
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Old Mar 15, 2007 | 01:07 PM
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For an M6 any dextron fluid will work.
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Old Mar 15, 2007 | 01:25 PM
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mobil 1 atf is what we recommend.
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Old Mar 15, 2007 | 01:54 PM
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Originally Posted by Six Speeds Inc.
mobil 1 atf is what we recommend.

i thought you guys use gm syncromesh
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Old Mar 15, 2007 | 02:09 PM
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Just depends on location. GM Synchromesh is a thicker fluid so in cold climates customer complain of hard shifting. Mobil 1 is thinner than GM Synchromesh. Mobil 1 is also easier to get and less expensive than getting it from the dealership.

Amber
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Old Mar 15, 2007 | 04:43 PM
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Originally Posted by Six Speeds Inc.
mobil 1 atf is what we recommend.
Synthetic or dino?
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Old Mar 16, 2007 | 03:47 PM
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Royal Purple Synchromax (Synthetic) Good stuff, got it in my 94 Z28 that I autocross and do driving schools with, 97000 miles and still shifts like hot knife through butter.
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Old Mar 29, 2007 | 09:05 AM
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No the guys at liberty tell us no royal purple at all. It has an additive that is know to cause blocker ring problems. We used it forever in our rebuilds without issue but tremec will not warranty parts if you use it.

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Old Mar 29, 2007 | 02:30 PM
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Originally Posted by Six Speeds Inc.
mobil 1 atf is what we recommend.
Even in stock, NOT rebuilt, cellulose (paper) composite blocker ringed T56s??
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Old Mar 29, 2007 | 02:31 PM
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Originally Posted by Dex
Synthetic or dino?
Mobil 1 is only available in synthetic.
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Old Mar 29, 2007 | 03:45 PM
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mobil 1 atf is what we recommend.
Changed the way the car shift, nice and smooth even cold. Works great.
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