Keisler 5 spd lubrication
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Pro
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From: North Port, FL
Keisler 5 spd lubrication
Just finished helping my neighbor put a Keisler 5 spd kit in his 69. We would like to try it out but don't have any lubricant. The directions call for GM part number 12345349 Synchromesh Transmission Fluid. Does anyone know if there is an equivalent lubricant that could be used. Is this stuff a gear oil (like 75W 90) or more like an automatic transmission fluid? We tried the local parts store with no luck. Unless you guys know of something equivalent we can use we are stuck till Monday....Thanks
Team Owner
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From: Smile, it's just the internet.
According to this paper, Pennzoil makes the synchromesh fluid for GM. It's 5-w30 with friction modifier and high pressure additives. You can buy the Pennzoil-branded bottles anywhere, I assume.
http://www.stealth316.com/2-pennzoil-synchromesh.htm
http://www.stealth316.com/2-pennzoil-synchromesh.htm
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From: Lenoir City Tennessee
Ci 6, 8 & 10 Veteran
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15
Synchromesh=liquid gold $$$. I asked the same question about a year or so ago when I installed mine. Someone gave an equivalant but I wound up going to see Mr. Goodwrench and put synchromesh in anyway. I don't recall what the equivalant was, sorry.
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From: Forked River NJ
I put in Dexron fluid as an alternative. It is working OK but my brother in law put in a TKO600 in his car and said the GM stuff is way better. He has driven mine and he said the shifting is smoother with the GM fluid. Looks like I will be draining out the old stuff and in with the GM fluid.
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From: Waterloo ontario Canada
Why is a Keisler any different then a normal Tremec TKO? My instructions just called for Dextron automatic transmission fluid.
Synthetic makes the transmission a little bit noiser. I have run mine for 3 years on ordinary transmission fluid.
Synthetic makes the transmission a little bit noiser. I have run mine for 3 years on ordinary transmission fluid.
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From: North Port, FL
Thanks for the info...I did some further research after I posted this thread and found several references that said Dextron IIE can be used. One recomended running with Dextron for break in and then switching to the GM synchromesh. We put Dextron in for now and will switch to the GM lub as soon as we can get it.
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Racer
Joined: Nov 2001
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From: Knoxville TN
Originally Posted by ZL1powr
Just finished helping my neighbor put a Keisler 5 spd kit in his 69. We would like to try it out but don't have any lubricant. The directions call for GM part number 12345349 Synchromesh Transmission Fluid. Does anyone know if there is an equivalent lubricant that could be used. Is this stuff a gear oil (like 75W 90) or more like an automatic transmission fluid? We tried the local parts store with no luck. Unless you guys know of something equivalent we can use we are stuck till Monday....Thanks
You should run the sychromesh fluid, per our manual. Tremec states that Dextron IIE can be used, but it is NOT RECOMMENDED BY US for street use. It makes shift quality bad and the transmission emits noise that is not normally heard when running. You can run it in a pinch, but switch over to the Sychromesh. Like Eddie said, it's expensive, but it IS worth every penny you will pay for it. Besides, the oil can run for years without change (I haven't changed the oil in my Charger R/T TKO unit in 4 years).
There is supposedly a new GM SYNTHETIC Sychromesh oil. I have not tried it. I would appreciate if one of our customers could give it a try and post the results to the forum, along with part number and price.
Last edited by Keisler Automotive; Oct 17, 2004 at 07:47 AM.
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From: Waterloo ontario Canada
Originally Posted by Summerfun
What is wrong with gear oil?
Specific reasons for not using it?
Don't all the big 18-wheelers use it?
Specific reasons for not using it?
Don't all the big 18-wheelers use it?
Racer
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From: Knoxville TN
Summerfun,
I don't know the technical details, but I suspect the lubricity of the oil is not correct for the type of friction the sychros and gear mechanism experiences.
Tremec also strongly advised us not to use additives such as Redline, as these can actually damage internal components on some Tremec transmissions. I'm sure Redline is a good product, but it's a mismatch for some transmissions.
Shafi Keisler, Keisler Engineering Inc.
www.keislerauto.com/gm
I don't know the technical details, but I suspect the lubricity of the oil is not correct for the type of friction the sychros and gear mechanism experiences.
Tremec also strongly advised us not to use additives such as Redline, as these can actually damage internal components on some Tremec transmissions. I'm sure Redline is a good product, but it's a mismatch for some transmissions.
Shafi Keisler, Keisler Engineering Inc.
www.keislerauto.com/gm
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From: Forked River NJ
Originally Posted by flynhi
Any benefits from using GM Synchromesh lube in a Muncie 4 sp?
Melting Slicks
Joined: Oct 2001
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From: Halifax, Nova Scotia, Canada
Originally Posted by flynhi
Any benefits from using GM Synchromesh lube in a Muncie 4 sp?
Note: My son's friend has a mid 12 second Eagle Talon, and a number of the Talon guys use the GM Synchromesh lube in their cars. It improves the shifting.
It really is worth the money.
Barry
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From: Forked River NJ
I just purchased some GM syncromesh fluid. It was 12 bucks a quart at the GM dealer I went to. My Tremec is draining as I write this of the Dexron II fluid I had in there. The only problem I see is getting it back in the trans. The plug on the side is not going to allow much success from underneath. I bought some clear plastic tubing and will probably snake it through the shifter hole and into the trans. I hope I feel a difference for 36 dollars worth of fluid.
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Originally Posted by Gordonm
I just purchased some GM syncromesh fluid. It was 12 bucks a quart at the GM dealer I went to. My Tremec is draining as I write this of the Dexron II fluid I had in there. The only problem I see is getting it back in the trans. The plug on the side is not going to allow much success from underneath. I bought some clear plastic tubing and will probably snake it through the shifter hole and into the trans. I hope I feel a difference for 36 dollars worth of fluid.
Let me know if it makes a difference in the feel and I'll do the same!!
Team Owner
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From: Smile, it's just the internet.
$36 is CHEAP. My Lincoln takes 12 quarts Mercon V (Dexron III in GM talk) full synthetic at more than $5/qt. Takes a special fluid transfer machine to change it, too. Tranny fluid change = $150