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Re: DEXRON!!!
[Re: JohnRR]
#34255
02/06/07 01:24 PM
02/06/07 01:24 PM
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Joined: Jan 2004
Posts: 4,563
Motor City
6PKRTSE
master
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master
Joined: Jan 2004
Posts: 4,563
Motor City
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Interesting read. I was just going to change the fluid & filter in my 96 ram 2500. Its a 48RE behind a V-10. I just turned 100,000 miles. It was changed twice prior by the dealer while it was still under warranty. Would a 96 still be 3 or 4? I just bought a case of 3 but I can use it in all of the cars if I have to.
1963 Belvedere 440 Max Wedge Tribute
1970 Charger R/T S.E. 440 Six Pack
1970 Challenger R/T, 528 Hemi
1970 Charger 500 S.E. 440 4 BBL
1970 Plymouth Road Runner 383
1974 Chrysler New Yorker 440
1996 2500 RAM 488 V-10 4X4
2004 3500 Dually Cummins 4x4
2012 Challenger R/T Classic.
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Re: DEXRON!!!
[Re: 6PKRTSE]
#34256
02/06/07 02:45 PM
02/06/07 02:45 PM
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Joined: Jan 2003
Posts: 74,976
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 74,976
U.S.S.A.
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Quote:
Interesting read. I was just going to change the fluid & filter in my 96 ram 2500. Its a 48RE behind a V-10. I just turned 100,000 miles. It was changed twice prior by the dealer while it was still under warranty. Would a 96 still be 3 or 4? I just bought a case of 3 but I can use it in all of the cars if I have to.
your 96 should be a 47RE unless you retrofitted one in .
it calls for +3 , but the factory has said that +4 could/should be used in place of +3.
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Re: ATF 4 versus Dexron III whats the difference?
[Re: Sledge_57]
#34259
02/09/07 12:36 AM
02/09/07 12:36 AM
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Anonymous
Unregistered
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Anonymous
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Most newer ATF's are backward compatible. Meaning that if III is good IV is better and V is still better. The V will work just fine in a transmission that was speced with III. Dexron V is fine in Dexron III specs. Chrysler IV works fine in III. Newer specs are better quality, but backwards compatable. https://www.amsoil.com/news/atf_new_specs.aspxFree catalog: www.amsoil.com/redirect.cgi?zo=347292&page=info
Last edited by smallblockman; 02/09/07 11:51 AM.
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Re: it's spelled D-E-X-R-O-N
[Re: dogdays]
#34261
02/09/07 11:52 AM
02/09/07 11:52 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Gotcha  Fixed
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Re: ATF 4 versus Dextron III whats the difference?
[Re: GO_Fish]
#34262
02/09/07 12:05 PM
02/09/07 12:05 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Read the Allpar link. It says that newer ATF does not play well with old style trans seals and will cause leaks.
Been there, done that. I changed the fluid/filter in my 727 and thought I'd upgrade to the ATF+3. With the original (factory!) seals in the trans and ATF+3, the front pump seal leaked like a sieve! It would lose more than a pint sitting overnight. I didn't have alot of time to "fix" the problem so I thought I'd buy some time by keeping a case of dexron in the trunk. By the time I went through 2/3 of that case of fluid, the leaks stopped.
I'm sure that a rebuilt trans can have gaskets put in it that are compatible with ATF+3-4-5, but don't try it with older rebuilds or original trans' unless you want a red lake in your driveway...
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Re: ATF 4 versus Dextron III whats the difference?
[Re: GO_Fish]
#34263
02/09/07 08:31 PM
02/09/07 08:31 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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There has been a similar discussion on a GM based board about using the +4 in the GM 4L60E, and the same comment was made about it not being compatible in the older trans. Someone claimed to have fried theirs not too long after a switch to the +4. Amsoil synthetic was mentioned as the only synthetic compatible with the GM trans, but I don't know if its true or not.
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Re: ATF 4 versus Dextron III whats the difference?
#34264
02/18/07 09:43 PM
02/18/07 09:43 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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I know that Ester based synthetics can cause a varnished seal to clean up and leak sometimes. Most the time Ester swells the seal and seals leaks. Amsoil ATF is PAO based and seal leaks are not an issue.
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Re: DEXRON!!!
[Re: dogdays]
#34265
02/18/07 10:00 PM
02/18/07 10:00 PM
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Joined: May 2004
Posts: 5,123
Warrenton, VA
RoadRunnerJD
master
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master
Joined: May 2004
Posts: 5,123
Warrenton, VA
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Quote:
It is spelled DEXRON. There is no T in it. Use it in your +3 or +4 or +5 transmission at your own risk, is my humble opinion.
I can't believe it, people will spend zillions of dollars changing the engine oil every 2000 or fewer miles yet cheap out on buying the correct transmission fluid. Does anyone else out there see a logical disconnect in that thinking?
If you build your own transmissions and want to experiment it's not my call anyway. You know exactly what kinds of materials are in the box.
If you think you can outsmart the Chrysler engineers go ahead, it's your money. I once replaced a missing quart of DEXRON III with a quart of power steering fluid, never saw any problems from that. But I was worried for a while.
R.
I had my 727 trans redone with a Turbo Action valve body (also their TC). The instructions were to use Dexron III. It has leaked like a sieve between the rear and front case, moreso when it's parked than when it's hot. I didn't figure that out until I changed the pan gasket three times and finally pulled the trans. Is it the Dexron III? Should I use something other than what Turbo Action says to use with their equipment?
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Re: DEXRON!!!
[Re: 74DartSport]
#34268
02/19/07 12:11 AM
02/19/07 12:11 AM
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Joined: Jan 2007
Posts: 489
Minneapolis MN
Plymouth-man
mopar addict
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mopar addict
Joined: Jan 2007
Posts: 489
Minneapolis MN
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BOTTOM LINE:
USE WHAT IS CALLED FOR IN YOUR MANUAL!!!
1929 PLYMOUTH Model "U"
1961 CHRYSLER New Yorker 4 DR H/T
1972 PLYMOUTH Scamp
1987 CHRYSLER LeBaron GTS
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Re: DEXRON!!!
[Re: Plymouth-man]
#34269
02/19/07 12:45 AM
02/19/07 12:45 AM
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Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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I am suprised you guys take everything on allpar as gospel, I have seen a ton of mistakes when reading different things on there. I have no idea however what it says about tranny fluid is true or not though. I have heard the varnish theory but the only time I have seen varnish build up in any auto trans was in one that was totally toaseted, every band and clutch in it was fried. I have rebuilt a ton of rwd chrysler trans and that was the only one I ever saw with varnish. It was a core from a JY and have no idea of the history of it. The only tranny fluid I have noticed any differance in the way it made a tranny shift is type F. I have a cheap and plentiful source of Honda atf z1 and have used it in a bunch of mopar trannys with every one of them still running fine. I have no idea what is in it but a honda dipstick says use dexron mercon or this. Mopar has built a ton of puny trannys recently and the "softer shift" crap is what seems to be burning them up not the fluid. I worked at a dodge dealer quite a while and was shocked at the trans relibility problems, trannys going out before the first fluid change was even due. I remember the tranny guy replaceing a couple complete trannys right off the truck with virtually no miles on them  he also replaced a ton of valve bodies under warranty, funny thing though, he replaced the entire trans for the same problems when it wasn't warranty.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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But Chrysler has sent a memo that ATF+4 is to be used in place of +3.I don't think Mopar supplies +3 anymore.At least that's what the parts guys here tell me in my dealership. I also used the +3 in my rebuild for my Bee because the techs told me the ATF+4 will make shifts too smooth for a perf trans. ATF+3 worked fine.Oh well sold the car 2 years later and got a $ gear Challenger 
