Will Synthetic Tranny fluid make a diff??
- Thread starter 2003BlackStang
- Start date
LouisianaZJ
Member
- Feb 13, 2004
- 237
- 0
- 17
this is what someone told me, not sure how it actually works in the tranny
"One thing you need to know is that Red Line D4 ATF (Mercon V) is not good for your T-3650 tranny. The synchro rings are carbon fiber, and RL makes these rings brittle. I know it's wierd, but a lot of teh Mustang folks on www.mustangworld.com are using GM Synchromesh manual transmission fluid in their T-3650 trannys. GM Synchromesh takes the characteristic 1-2 shift grind out of the picture completely. Don't use Red Line in the T-3650 tranny."
"One thing you need to know is that Red Line D4 ATF (Mercon V) is not good for your T-3650 tranny. The synchro rings are carbon fiber, and RL makes these rings brittle. I know it's wierd, but a lot of teh Mustang folks on www.mustangworld.com are using GM Synchromesh manual transmission fluid in their T-3650 trannys. GM Synchromesh takes the characteristic 1-2 shift grind out of the picture completely. Don't use Red Line in the T-3650 tranny."
wms004
Founding Member
I've had the RL D4 ATF in there for over 5,000 miles. Can anyone back up the statement above? How much and where to get GM Syncromesh?
Turbo92PGT
Member
I've had redline in my T45 for a while now. Its not that great =/ I liked using maxlife and lucas oil stabilizer better.
Your 96 has the T45 transmission
Your 96 has the T45 transmission
I think it's a good idea for an auto tranny. I put Amsoil synthetci ATF in my Stang about a year ago, when it had 15,000 miles on it. It now has 36,000 miles on it, and I've never had a single problem.
Amsoil is good, because it does not break down as easily at high temperatures.
I just changed the tranny fluid again a couple of weeks ago, and the old Amsoil fluid looked pretty good, still red, and not brown.
I'd guess I'd stay away from Redline, if what that person above said is true.
Amsoil is good, because it does not break down as easily at high temperatures.
I just changed the tranny fluid again a couple of weeks ago, and the old Amsoil fluid looked pretty good, still red, and not brown.
I'd guess I'd stay away from Redline, if what that person above said is true.
Another thread stated that ford puts MOBIL 1 synthetic in stock is this stuff just crap or is that guy wrong? What should I use and how much any info to help me will be appreciated. Ford is hooking me up with a new tranny and i want to change the fluid first thing so the prob wont happen with this tranny. Thanks for your advice in advance anything will be nice. 
wms004
Founding Member
I am that guy. Look at your manual.. it says in the back, Mobile 1 ATF2003BlackStang said:Another thread stated that ford puts MOBIL 1 synthetic in stock is this stuff just crap or is that guy wrong? What should I use and how much any info to help me will be appreciated. Ford is hooking me up with a new tranny and i want to change the fluid first thing so the prob wont happen with this tranny. Thanks for your advice in advance anything will be nice.
wms004
Founding Member
wms004
Founding Member
I've heard you want to use a non-synthetic Dexron III.. and i believe GM syncromesh was recommended.. Check on the bottle though, to be sure. There are other Dexron III's out there that are cheaper.2003BlackStang said:
-wade
Blev
New Member
wms004
Founding Member
I don't have any "problems" either.. but problems now vs. problems you could be creating in the long run are two different things. For those with the Tremec 3650 tranny, using a synthetic as I am right now, I don't have any problems.. but if peoples' rumors from tremec are correct about using synthetics, we could see problems.Blev said:
difference?
Depends on indivdual trans. Supposingly T-5s, etc. aren't suppose to use anything synthetic. It "messes" up the syncro blocker rings. I have used it in some of my T-5s and have no problem. I, however, have one now that is scraping already - only after a year old and have been told to get that synthetic fluid out of their as soon as possible. Seems to be the luck of the draw.
Jason
Depends on indivdual trans. Supposingly T-5s, etc. aren't suppose to use anything synthetic. It "messes" up the syncro blocker rings. I have used it in some of my T-5s and have no problem. I, however, have one now that is scraping already - only after a year old and have been told to get that synthetic fluid out of their as soon as possible. Seems to be the luck of the draw.
Jason
Similar threads
