|
03-08-2017, 11:01 PM | #11 |
Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 885
Likes: 62
Liked 221 Times in 102 Posts
|
Re: Dextron III / IV or Synthetic ATF
While there may be synthetic versions of Dex6 , the factory fill is not synthetic . The additive package that is in Dex6 defines the anti-wear , foaming , and friction characteristics. Dex6 synthetic or Dex6 mineral based fluid will have the same friction profiles . That is the definition of Dex6 .
|
03-09-2017, 08:07 PM | #12 |
Member
Join Date: Feb 2002
Location: Marion, Ohio
Posts: 175
Likes: 3
Liked 26 Times in 11 Posts
|
Re: Dextron III / IV or Synthetic ATF
Dexron HP fluid, which is what GM is now using in the 8 speeds is fully synthetic. Some of the the 8 speeds that were filled with Dex6 are having tcc shudder issues and they are having us flush and refill with the HP fluid. I fixed a very low mileage 17 Canyon with this procedure. The GM part number is 19300536. Mobil 1 also has a version. Stuff is pretty pricey though.
|
03-12-2017, 08:13 AM | #13 |
VIP Member
Join Date: Nov 2007
Location: New Jersey
Posts: 1,761
Likes: 66
Liked 380 Times in 180 Posts
|
Re: Dextron III / IV or Synthetic ATF
Allison Transynd, in my race cars and daily drivers. None better!
|
03-14-2017, 01:30 AM | #14 |
Junior Member
Join Date: Jul 2014
Posts: 47
Likes: 244
Liked 16 Times in 8 Posts
|
Re: Dextron III / IV or Synthetic ATF
Curious about Allison Transynd. Allison recommends it for all of its transmissions and requires it on newer 3000 and 4000 series models. I have one of the older 3000's and can use either Dexron or Transynd. I have never had a problem with Dexron 3, if I change it once in a while.
I had planned to change to the synthetic, but a truck shop specializing in heavy duty Allisons told me not to waste my money. They said they don't use the synthetic because it is so expensive and they haven't seen any benefit. What gives with all of these really expensive ATF's? The stuff required in the new Jaguar's is $20.00 or more a quart. Thanks, Loren |
03-16-2017, 12:26 PM | #15 |
Senior Member
Join Date: Feb 2002
Location: Southeast Michigan
Posts: 885
Likes: 62
Liked 221 Times in 102 Posts
|
Re: Dextron III / IV or Synthetic ATF
Transynd is the same as TransMax , which is a Dexron synthetic made by Castrol. It is excellent .
|
03-16-2017, 12:44 PM | #16 |
Veteran Member
Join Date: Mar 2005
Location: Sand Springs, OK
Posts: 8,132
Likes: 896
Liked 389 Times in 168 Posts
|
Re: Dextron III / IV or Synthetic ATF
Normally, asking your transmission builder is best.
__________________
Ed Wright 4156 SS/JA |
03-20-2017, 10:19 PM | #17 | |
Senior Member
Join Date: Dec 2003
Location: Vacaville Ca
Posts: 733
Likes: 626
Liked 538 Times in 222 Posts
|
Re: Dextron III / IV or Synthetic ATF
Quote:
Mobile 1 also has Allison approved Mobile Delvac Synthetic Trans fluid TES-295 #112810. Better blending stocks than Castrol. I agree with Ed, your trans builder knows...
__________________
Barry Polley 758 A/SA California- No place to race! |
|
03-25-2017, 09:18 PM | #18 | |
Junior Member
Join Date: Mar 2016
Posts: 6
Likes: 0
Liked 0 Times in 0 Posts
|
Re: Dextron III / IV or Synthetic ATF
Quote:
StickBBF |
|
03-29-2017, 04:55 PM | #19 |
Junior Member
Join Date: Jul 2014
Posts: 47
Likes: 244
Liked 16 Times in 8 Posts
|
Re: Dextron III / IV or Synthetic ATF
The Jaguar transmission fluid is a complete joke. I said $20.00 but I think it is much more than that from the dealer. The Jaguar transmission requires ten to 14 quarts.
The Allison 3000 requires about 28 quarts depending on the sump size. Allison says to change it every 75,000 miles. The Allison 4000 requires about 40 some quarts depending on the sump size. Again every 75,000 miles. If Dexron is used it is supposed to be changed every 25,000 miles. When I do that, it looks the same as the stuff I started with. Not dirty or anything. Filters (two large ones) are very high quality and very expensive, never seem to get dirty. The whole thing seems odd to me but rebuilding one of these things is VERY expensive, so I just bite the bullet. Just wish I knew more about transmission fluids. Loren |
03-29-2017, 06:57 PM | #20 | |
VIP Member
Join Date: Oct 2008
Posts: 2,115
Likes: 1,078
Liked 179 Times in 110 Posts
|
Re: Dextron III / IV or Synthetic ATF
Quote:
Cannot get a straight answer if they are all made by one source. Then marketed under different names. Then the confusing specification information between them to make them look different. What I do see is that Synthetic behaves differently. Able to take more heat and offer better protection. Synthetic different grip and lubrication properties over standard Dexron III/IV. So much so that Synthetic lasts 3 times as long. Wonder who has done a study on Dexron after 25000 mile change. What do the properties look like after use? There is Amzoil vs Standard, Amsoil vs Royal Purple, vs Redline This was a fun youtube video. |
|
Thread Tools | |
Display Modes | |
|
|