anyone using GM Synchromesh??
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Drifting
Joined: Jun 2004
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From: TN
anyone using GM Synchromesh??
I know alot of the Cobra owners and other mustang owners are making the switch to it. Also DSM owners swear by the stuff. I'm thinking of trying it but I dont want to void the warranty with something stupid like a fluid!
Eric
Eric
Team Owner
Joined: Mar 1999
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From: At the beach in little Rhody
The only negative I have seen was that the long term effects on some non-metallic parts were unknown according to the transmission manufacturer. Everyone using it seems to be happy with the results. For now, I stuck with Amsoil and will wait and see what happens with this fluid.
Drifting
Joined: Jul 2004
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From: Dallas Texas
I love that crap!! I use it in my T-56 in my Single Turbo Mustang with a 427 and in my Twin Turbo 300 ZX! Best of all the fluids I have ever used, and I have used a ton of other products. Great stuff!!
Shahram
Shahram
Melting Slicks
Joined: Dec 2001
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From: Collin County Texas
When I had my '97 Cobra with its grinding 1-2, 2-3 shift, I changed to the GM Synchromesh fluid and the problem disappeared. Never had any long-term reliability problems. Drove the car for 50K plus miles.
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From: King George VA
Originally Posted by 00BlkFRC
I know alot of the Cobra owners and other mustang owners are making the switch to it. Also DSM owners swear by the stuff. I'm thinking of trying it but I dont want to void the warranty with something stupid like a fluid!
Eric
Eric
If the fluid meets DEXRON III requirements, you won't invalidate your warranty. I'm not sure if the GM synchromesh meets DEXRON III requirements. I know the AMSOIL ATF does.
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Melting Slicks
Joined: Sep 2003
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From: Northville Michigan
Eric,
Read the attached before you switch because of other's opinions:
http://www.svtperformance.com/forums...threadid=24048
Read the attached before you switch because of other's opinions:
http://www.svtperformance.com/forums...threadid=24048
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Joined: Aug 2001
Posts: 5,364
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From: King George VA
Originally Posted by Pumba
Eric,
Read the attached before you switch because of other's opinions:
http://www.svtperformance.com/forums...threadid=24048
Read the attached before you switch because of other's opinions:
http://www.svtperformance.com/forums...threadid=24048
Very interesting read. Thanks.
Burning Brakes
Joined: Jul 2004
Posts: 1,202
Likes: 5
I just had my fluid changed with GM Synchromesh, under warranty on 12/27/04. The mechanic told me that he uses it exclusively unless an owner brings in their own fluid. His experience has been that most people will not see a difference between the regular ATF and the synthetics. He said that the Synchromesh performs excellent in that the shifts will be smoother and the noise will be reduced & will not breakdown like regular ATF. Synchromesh is what the dealer uses and will not void any warranty. The Synchromesh is a partial synthetic fluid. If you have read other threads on tranny fluid, you will see that many people have had problems with synthetics. I was a little skeptical; I contacted a few Tremec rebuilders and all but one recommended GM Synchromesh as the fluid (I found rebuilders using Google). The car shifts smoother (I have a B&M shifter) and I have virtually no tranny noise since changning to GM Synchromesh.
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From: King George VA
Originally Posted by Cruncher
Synchromesh is what the dealer uses and will not void any warranty.
While I'm obviously a little biased, I personally would be very hesitant to put anything in a car under warranty that doesn't meet the manufacturers specification and I'm pretty certain that for the MN6/MN12 gearbox, that requirement is DEXRON III.
Burning Brakes
Joined: Jul 2004
Posts: 1,202
Likes: 5
Originally Posted by Subdriver
If, as mentioned above, GM Synchromesh does not meet DEXRON III requirements, then I don't see how this can be true. Just because your dealer uses it doesn't mean it meets GM requirements.
While I'm obviously a little biased, I personally would be very hesitant to put anything in a car under warranty that doesn't meet the manufacturers specification and I'm pretty certain that for the MN6/MN12 gearbox, that requirement is DEXRON III.
While I'm obviously a little biased, I personally would be very hesitant to put anything in a car under warranty that doesn't meet the manufacturers specification and I'm pretty certain that for the MN6/MN12 gearbox, that requirement is DEXRON III.
Melting Slicks
Joined: Nov 2003
Posts: 2,555
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From: Fredericksburg VA
I had a Notchy T56 out of a 1995 Firebird that I stuffed into a datsun 260Z, along with a 383 stroker. I used Syncromesh from day one in that tranny and after the first 1000 miles I drained the fluid, based on the comments made about the tranny by the previous owner... I ran 10:98s several passes in that car with that tranny and GMs Syncromesh and after the initial fluid swap at 1K miles, the thing shifted like butter and was quiet with no gear noise at all... It is good fluid, and I'd use it again!!
Mike
Mike
Last edited by Mikelly; Dec 30, 2004 at 10:14 AM.
Burning Brakes
Joined: Oct 2001
Posts: 926
Likes: 200
From: TX
cruncher
gm synchromesh is made for another transmission in the gm line, I forget which one.
I spent a great deal of time looking into this and the similar royal purple product. Neither meet the dexron lll spec. I have checked with some of the tuners here. Some say it voids the warranty, some say the opposite.
My conclusion was to use a synthetic atf and not travel into these waters. My warranty is for another 6 years so I pay attention to these specs. Synthetic atf has a huge advantage in operating temps over nonsynthetic atf. Planning for a bit of track time convinced me I need a higher heat capability for my MN6.
I do believe your criticism of Subdriver is unwarranted. His use of Amsoil is based on research, race application, positive experience and desire to help and inform. Income to him is negligible from these sales. (Cush salary from United States as a naval officer, with a bit of personal risk thrown in to make it interesting.)
all the best from
verysoon
gm synchromesh is made for another transmission in the gm line, I forget which one.
I spent a great deal of time looking into this and the similar royal purple product. Neither meet the dexron lll spec. I have checked with some of the tuners here. Some say it voids the warranty, some say the opposite.
My conclusion was to use a synthetic atf and not travel into these waters. My warranty is for another 6 years so I pay attention to these specs. Synthetic atf has a huge advantage in operating temps over nonsynthetic atf. Planning for a bit of track time convinced me I need a higher heat capability for my MN6.
I do believe your criticism of Subdriver is unwarranted. His use of Amsoil is based on research, race application, positive experience and desire to help and inform. Income to him is negligible from these sales. (Cush salary from United States as a naval officer, with a bit of personal risk thrown in to make it interesting.)
all the best from
verysoon
