Synthetic yes or no
On The Tree
Joined: Nov 2006
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From: fort smith, arkansas
Originally Posted by o2man98
The AMSOIL ATF and Torque Drive is for DexIII applications.
ATF is here: http://www.amsoil.com/StoreFront/atf.aspx?zo=1436102
TorqueDrive is here: http://www.amsoil.com/storefront/atd.aspx?zo=1436102
Both of the above will work where DexIII is needed and the ATF can also be used in DexVI uses. The ART Supershift is NOT recommend for Dexron applications. This fluid is for C-4 and Type F applications.
ATF is here: http://www.amsoil.com/StoreFront/atf.aspx?zo=1436102
TorqueDrive is here: http://www.amsoil.com/storefront/atd.aspx?zo=1436102
Both of the above will work where DexIII is needed and the ATF can also be used in DexVI uses. The ART Supershift is NOT recommend for Dexron applications. This fluid is for C-4 and Type F applications.
I like some synthectic stuff. But when I bought my Yank stall. I was told specifically to run normal Dexron and NON synthetic. So, thats what I'm doing to keep warranty. I have run the Royal Purple sythetic before and litterly 2weeks 300mile my tranny went to ****, thats from a fresh rebuild. So after that I stopped using it and just run Napa Premium Dexron 3.
Ski
Ski
On The Tree
Joined: Nov 2006
Posts: 143
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From: fort smith, arkansas
kyle, your right IF your talking about a STOCK transmission. if you modify the tranny at all, that "rule" changes and it is highly recommended to run a synthetic for the extended drain's and for the added "peace of mind".......i'm not disagreeing with you; however, there are different shades of gray involved
Originally Posted by fortheluckyones
^^^THANK YOU SIR^^^....point proven. the 4l60e tranny's are designed to slip between shifts, since synthetic is slicker than dexIII, it could cause premature wear. if your running a modified 4l60e or a TH-400 or anything like that, i would recommend nothing less than synthetic just for the peace of mind. yes, it is more expensive but worth it in the long run.
No more synthetics for me.
I have no experience running synthetic in any of my transmissions, but according to one of the builders that resides on the impala forum (the CPT that does builds for the b-car guys) He says no synthetic, use DEX III.. Maybe I'll get a chance to ask him why he feels that way.
EDIT:::
I asked him and he stated that a synthetic is too slippery for a 4l60e. He's torn apart 10,000 mile trans and found nothing wrong but burnt up clutches and an owner that chose to run a synthetic trans fluid.
EDIT:::
I asked him and he stated that a synthetic is too slippery for a 4l60e. He's torn apart 10,000 mile trans and found nothing wrong but burnt up clutches and an owner that chose to run a synthetic trans fluid.
Last edited by buffman; Feb 21, 2007 at 02:51 PM.
I have had Royal Purple in my 2nd and 3rd transmissions. The first one I believe was saved by using synthetic fluid. I lost 6 quarts from a transmission cooler hose coming off the first time and once again I lost 3 from a knick in the hose. The transmission had somewhere around 70k when a band finally broke. I think it saved me. I wouldnt change it. I go and get it flushed once a year (around 20k-25k miles).
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Originally Posted by o2man98
Synthetics can be DEXIII. The AMSOIL ATF and ATD Torque Drive is DEXIII.
Well that's his opinion not mine. He's specifically stated time and time again to use the a non synthetic trans fluid of any kind. Just the standard Dex III stuff. I'll just continue to use what I know works and what doesn't cost me a fortune
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by fortheluckyones
o2man98 your my hero!! people just dont get it
just because it's synthetic doesn't mean it's better.
On The Tree
Joined: Nov 2006
Posts: 143
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From: fort smith, arkansas
Im not "trusting a salesman selling an expensive product"...im a dealer and sales rep for amsoil as well and i PERSONALLY know the owner AND the owners son of Yank so i know what the "top builders" are saying. i'm not trying to say that my product is the best, period, for every single tranny out there all i'm saying as is o2man98 is that it is recommended to run a dex III in the 4l60's but amsoil's torquedrive atf IS a dex III, so all i'm asking for is why, if they are BOTH a dex III fluid, is one causing premature slippage?!?! i understand that synthetic is slicker than standard ATF but if they are both rated as a dex III then whats the diff???
i'm confused... so a no on synthetic? i just flushed my tranny and replaced it with Mobile 1 synthetic ATF. before, it had just regular ole ATF. Then i slapped on my STS kit. After a week of driving after my tune, i lost 2nd... could it have been the synthetic or just the added power? probably both.....
On The Tree
Joined: Nov 2006
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From: fort smith, arkansas
most likely it was more the added power more than it was the fluid. my friend's HP turbo t/a made 500.3rwhp on a fully built 4l60e tranny and after one week of driving with the HP kit, his tranny practically exploded as did the next 4l60e that he had built(even better built than the first). hes now the proud owner of a brand new th-400
Originally Posted by ChocoTaco369
what's to get? synthetic ATF has been attributed to causing many 4L60E's to fail. it's too slippery for the transmission. top builders don't recommend synthetic ATF for 4L60E's. why don't you ask yank, chuck or vince? i guess that's the difference between me and you. i trust experienced trans builders, you trust salesmen selling an expensive product. not saying synthetic ATF is a bad product, not saying it's not good for some transmissions, just for a 4L60E, it's been proven over and over that the best ATF is plain old conventional dexron III for both stock AND modified 4L60E's. if you're so set on synthetic ATF, please, run it in yours. if you burn up your clutches, i suggest you keep it to yourself to avoid an "i told you so".
just because it's synthetic doesn't mean it's better.
just because it's synthetic doesn't mean it's better.
Launching!
Joined: Oct 2004
Posts: 230
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From: Wisconsin
Originally Posted by ChocoTaco369
what's to get?
That is all, no hard feelings. I could care less what people decide to run in their applications as long as it provides what they need. I am not here to sell anything, I am here to provide AMSOIL assistance for LS1tech as it is LS1tech.com that is the actual AMSOIL dealer here.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by o2man98
What is to get is that people are saying to run DEXIII but not synthetic. What people do not seem to understand is that when they are calling for DEXIII that it can be a synthetic.
That is all, no hard feelings. I could care less what people decide to run in their applications as long as it provides what they need. I am not here to sell anything, I am here to provide AMSOIL assistance for LS1tech as it is LS1tech.com that is the actual AMSOIL dealer here.
That is all, no hard feelings. I could care less what people decide to run in their applications as long as it provides what they need. I am not here to sell anything, I am here to provide AMSOIL assistance for LS1tech as it is LS1tech.com that is the actual AMSOIL dealer here.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by fortheluckyones
Im not "trusting a salesman selling an expensive product"...im a dealer and sales rep for amsoil as well and i PERSONALLY know the owner AND the owners son of Yank so i know what the "top builders" are saying. i'm not trying to say that my product is the best, period, for every single tranny out there all i'm saying as is o2man98 is that it is recommended to run a dex III in the 4l60's but amsoil's torquedrive atf IS a dex III, so all i'm asking for is why, if they are BOTH a dex III fluid, is one causing premature slippage?!?! i understand that synthetic is slicker than standard ATF but if they are both rated as a dex III then whats the diff???
Originally Posted by fortheluckyones
most likely it was more the added power more than it was the fluid. my friend's HP turbo t/a made 500.3rwhp on a fully built 4l60e tranny and after one week of driving with the HP kit, his tranny practically exploded as did the next 4l60e that he had built(even better built than the first). hes now the proud owner of a brand new th-400
I wonder if there are any published friction cohefficents (spelled wrong im sure)Properties of the various fluilds that would be interesting reading , Im going to do some research into that online surley the information exsist somewhere.
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