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 Correct Transmission Fluid

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furvedere
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PostSubject: Correct Transmission Fluid   Wed May 21, 2014 9:21 pm

I'm ready to refill my torque-flite transmission in my 1968 Dodge Monaco 500. (I changed the pan gasket and filter). The manual says to fill with AQ ATF Suffix A (Dexron). Well, Dexron has long been replaced with Dexron I, Dexron II, Dexron III etc etc. Would Dex-Merc be the best to use now-a-days?

Thanks. Bob

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PostSubject: Re: Correct Transmission Fluid   Thu May 22, 2014 4:44 am

I found this for you!  Marc

http://board.moparts.org/ubbthreads/showflat.php?Number=5842357


Reged: Jan 19 2003
Loc: Balt. Md
Re: 727 fluid- What to use? [Re: bonefish]
#5844171 - Wed Mar 03 2010 09:33 PM
Edit post Reply to this post Reply to this post Quick Reply



I have always used the Mopar fluid and I use ATF+4 now. But I have worked for Mopar dealers for the last 24 years so I get the Mopar fluid at a real good price. My brother use ATF in all his race cars also and we have never had any tranny problems. Ron

--------------------
My car...63 Sport Fury Max Wedge wanna be street car..with new 493 pump gas full exh eng.......10.76 @ 124.49 ! ! ! My page on the cool 62-65 Mopar site ! http://www.1962to1965mopar.ornocar.com/mmo82008.html



http://www.forabodiesonly.com/mopar/archive/index.php/t-72397.html


I loaded my tranny with ATF+3.

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wigsplitter7408-28-2009, 09:12 AM
I went by the reccomendations in the paper work for my converter and valve body, I think it was ATF 3 or maybe 4 IDK, the higher the number the better it is right? LOL

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fishy6808-28-2009, 07:41 PM
Good ole Dexron 3 works just fine. Type F (Ford stuff) was recommended for yrs. by B&M in their shift kits. I forget their reasoning but supposedly they thought it was better. It does provide a ever so slightly more solid shift but there's also disadvantages I've read. Sorry, it's been so long since I read about the properties I don't remember what the +'s and -'s were so for that reason i just use what Mopar recommends which is Dexron 3.

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daredevil08-28-2009, 07:45 PM
type f isnt as slippery so it shifts harder. you can even use john deere hydraulic fluid in them. its almost the same as b and m quikshift

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Duster34608-28-2009, 11:35 PM
Dex III or ATF+4. Cool

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C3908-28-2009, 11:38 PM
ATF 3 or ATF 4 is hell on the seals and is not recommended. Stick with Dexron III.

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Longgone08-28-2009, 11:46 PM
I`ve always used Dexron although they keep changing it.

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Duster34608-28-2009, 11:47 PM
Not sure where you heard that from C39, or if it's from personal experiance. The ATF+4 is synthetic fluid designed for the newer lock-up style transmissions, and will certainlly work in the 727/904, as well. ATF+3 is no longer available (discontinued).

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67yelodart08-29-2009, 06:10 AM
I agree with bOb,,,type "F"

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C3908-29-2009, 10:16 PM
Not sure where you heard that from C39, or if it's from personal experiance. The ATF+4 is synthetic fluid designed for the newer lock-up style transmissions, and will certainlly work in the 727/904, as well. ATF+3 is no longer available (discontinued).


I don't recall where I read that, but I am certain that i did not dream it. What is the point of using ATF+4 in a transmission not designed to use it? While I realize that many people open their wallet and gladly empty it whenever someone uses the word "synthetic", ATF-4 is half again more money than Dexron III.

Lock-up transmissions were introduced about 1978, long before the ATF fluid series was even proposed.

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65CudaFish03-31-2010, 12:39 AM
Now this will throw everyone for a loop! Dig this. In a 1965 Plymouth Manual that I have that covers all models including Belvedere Super Commando 426 Hemi it says, quote: Use only Automatic Transmission Fluid, AQ-ATF, Suffix "A" Part Number 1843314, (AQATF - 1470A), which is designed specially for Chrysler Corporation-built transmissions. No other fluids are recommended. Exceptions to this are the use of refined kerosene to aid starting in very cold weather and special dyes to aid in detecting fluid leaks. In addition, Transmission Sealer, Part Number 2298923, may be used in high mileage vehicles to correct minor seal leaks. If starting is difficult when the average temperature consistently ranges below -10 degree F., drain one and one-half pints of transmission fluid and replace with equal amount of refined kerosene. THIS SERVICE SHOULD ONLY BE PERFORMED ONCE DURING THE LOW TEMPERATURE SEASON. Thereafter, any replenishment should be with Automatic Transmission Fluid, AQ-ATF, Suffix "A". End Quote: In a 1962 to 1969MotorManual I have it has no fluid recommendations, it only says to use manufacture specified fluids. It does say to change it every 32,000 miles depending on the severity of driving, towing etc. One thing is for sure the Torque Flight is one of the best Auto's ever built, it usually will go for ever under normal conditions. It is a famed Automatic for it's early development of a no charge to the buyer for a three speed version of Automatic's. Wow! Kerosene, I don't think I will ever be putting it in my Transmission, but interesting, what ever gets it to go! I have always used Dexron lll. Now the Dexron/Mercon is what is best, regular or the high mileage stuff that Valvoline sells, they say it has all the best stuff in it, it seems to have the highest price too! Interesting stuff though, Dexron being Chrysler and Mercon being Ford now it's the mixture of both, scientific breakthrough I suppose????

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65CudaFish03-31-2010, 12:49 AM
Now this will throw everyone for a loop! Dig this. In a 1965 Plymouth Manual that I have that covers all models including Belvedere Super Commando 426 Hemi it says, quote: Use only Automatic Transmission Fluid, AQ-ATF, Suffix "A" Part Number 1843314, (AQATF - 1470A), which is designed specially for Chrysler Corporation-built transmissions. No other fluids are recommended. Exceptions to this are the use of refined kerosene to aid starting in very cold weather and special dyes to aid in detecting fluid leaks. In addition, Transmission Sealer, Part Number 2298923, may be used in high mileage vehicles to correct minor seal leaks. If starting is difficult when the average temperature consistently ranges below -10 degree F., drain one and one-half pints of transmission fluid and replace with equal amount of refined kerosene. THIS SERVICE SHOULD ONLY BE PERFORMED ONCE DURING THE LOW TEMPERATURE SEASON. Thereafter, any replenishment should be with Automatic Transmission Fluid, AQ-ATF, Suffix "A". End Quote: In a 1962 to 1969MotorManual I have it has no fluid recommendations, it only says to use manufacture specified fluids. It does say to change it every 32,000 miles depending on the severity of driving, towing etc. One thing is for sure the Torque Flight is one of the best Auto's ever built, it usually will go for ever under normal conditions. It is a famed Automatic for it's early development of a no charge to the buyer for a three speed version of Automatic's. Wow! Kerosene, I don't think I will ever be putting it in my Transmission, but interesting, what ever gets it to go! I have always used Dexron lll. Now the Dexron/Mercon is what is best, regular or the high mileage stuff that Valvoline sells, they say it has all the best stuff in it, it seems to have the highest price too! Interesting stuff though, Dexron being Chrysler and Mercon being Ford now it's the mixture of both, scientific breakthrough I suppose???? One of the other things I have found is the fluid level is suppose to be at the add mark Cold, and between the add and full mark Hot.

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65CudaFish03-31-2010, 05:46 PM
One of the other things I have found is the fluid level is suppose to be at the add mark Cold, and between the add and full mark Hot. The best priced RTF Racing Transmission Fluid I could find is TCI RTF 18.95 for 1 gallon at Summit Racing part number TCI- 950601 or for 55.95 3 gallons part number TCI- 950600. They had many more Dexron/mercon fluids as well, but all priced very high, from Lucas to Redline, to Royal Purple, B&M, etc.

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daredevil03-31-2010, 06:41 PM
this oughta be a poll

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340 swing03-31-2010, 06:56 PM
I have type F in mine all's good so far. I have heard of the engine oil trick but can't get myself to try it.

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scoot43903-31-2010, 07:05 PM
FWIW - My trans guru demanded I use Mopar 7176 ATF+3 oil and a pint of Lubeguard.

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Longgone03-31-2010, 08:17 PM
Now this will throw everyone for a loop! Dig this. In a 1965 Plymouth Manual that I have that covers all models including Belvedere Super Commando 426 Hemi it says, quote: Use only Automatic Transmission Fluid, AQ-ATF, Suffix "A" Part Number 1843314, (AQATF - 1470A), which is designed specially for Chrysler Corporation-built transmissions. No other fluids are recommended. Exceptions to this are the use of refined kerosene to aid starting in very cold weather and special dyes to aid in detecting fluid leaks. In addition, Transmission Sealer, Part Number 2298923, may be used in high mileage vehicles to correct minor seal leaks. If starting is difficult when the average temperature consistently ranges below -10 degree F., drain one and one-half pints of transmission fluid and replace with equal amount of refined kerosene. THIS SERVICE SHOULD ONLY BE PERFORMED ONCE DURING THE LOW TEMPERATURE SEASON. Thereafter, any replenishment should be with Automatic Transmission Fluid, AQ-ATF, Suffix "A". End Quote: In a 1962 to 1969MotorManual I have it has no fluid recommendations, it only says to use manufacture specified fluids. It does say to change it every 32,000 miles depending on the severity of driving, towing etc. One thing is for sure the Torque Flight is one of the best Auto's ever built, it usually will go for ever under normal conditions. It is a famed Automatic for it's early development of a no charge to the buyer for a three speed version of Automatic's. Wow! Kerosene, I don't think I will ever be putting it in my Transmission, but interesting, what ever gets it to go! I have always used Dexron lll. Now the Dexron/Mercon is what is best, regular or the high mileage stuff that Valvoline sells, they say it has all the best stuff in it, it seems to have the highest price too! Interesting stuff though, Dexron being Chrysler and Mercon being Ford now it's the mixture of both, scientific breakthrough I suppose????

That`s interesting but I could understand what they mean about adding kerosene when the temperature is a consistent -10*, could you imagine how thick the trans fluid must be..........like molasses or even soft serve ice cream. :toothy10:

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65CudaFish04-02-2010, 02:41 PM
Now this will throw everyone for a loop! Dig this. In a 1965 Plymouth Manual that I have that covers all models including Belvedere Super Commando 426 Hemi it says, quote: Use only Automatic Transmission Fluid, AQ-ATF, Suffix "A" Part Number 1843314, (AQATF - 1470A), which is designed specially for Chrysler Corporation-built transmissions. No other fluids are recommended. Exceptions to this are the use of refined kerosene to aid starting in very cold weather and special dyes to aid in detecting fluid leaks. In addition, Transmission Sealer, Part Number 2298923, may be used in high mileage vehicles to correct minor seal leaks. If starting is difficult when the average temperature consistently ranges below -10 degree F., drain one and one-half pints of transmission fluid and replace with equal amount of refined kerosene. THIS SERVICE SHOULD ONLY BE PERFORMED ONCE DURING THE LOW TEMPERATURE SEASON. Thereafter, any replenishment should be with Automatic Transmission Fluid, AQ-ATF, Suffix "A". End Quote: In a 1962 to 1969MotorManual I have it has no fluid recommendations, it only says to use manufacture specified fluids. It does say to change it every 32,000 miles depending on the severity of driving, towing etc. One thing is for sure the Torque Flight is one of the best Auto's ever built, it usually will go for ever under normal conditions. It is a famed Automatic for it's early development of a no charge to the buyer for a three speed version of Automatic's. Wow! Kerosene, I don't think I will ever be putting it in my Transmission, but interesting, what ever gets it to go! I have always used Dexron lll. Now the Dexron/Mercon is what is best, regular or the high mileage stuff that Valvoline sells, they say it has all the best stuff in it, it seems to have the highest price too! Interesting stuff though, Dexron being Chrysler and Mercon being Ford now it's the mixture of both, scientific breakthrough I suppose???? Also to consider is your application, are you running high compression with a high stall converter? Beefed up clutches, lower sun gears, manual valve body, etc. If so Performance Automotive Warehouse sells nice deep pans with cooling tubes and cooling fins. External filtering systems and nice trans coolers. This is a must with an extremely hot running transmission. And all you have to do is put a high stall in and it's a hot runner. And then the 32,000 mile fluid change changes to 10,000 miles sometimes even less. Also when installing a cooler don't bypass the radiator put the cooler in series with the radiator to add cooling not reverse it to even hotter!
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PostSubject: Re: Correct Transmission Fluid   Thu May 22, 2014 9:03 am

Thank you Marc...I had already found/read the "moparts" thread...but the "forabodies" thread is new/"news" to me. Thank you for all your searching for me. I really appreciate it! Isn't it amazing that there's so many different opinions on what to add to our torqueflite transmissions? It's actually quite comical. After I read in the FSM (manual for 68 Dodge Monaco) that Chrysler recommended AQ ATF Suffix-A (Dexron) way back when the car was new...I went out and bought what I thought was the closest trans fluid available on the shelf. I haven't poured it (Dex-Merc) in yet because I'm so unsure of everything I read on the moparts thread. There certainly does not seem to be a definitive answer on this one.  scratch I'll wait a bit longer and see if anyone else chimes in. I also started a thread on C-body drydock.com too but the answers there have confused me as well. I even called my local (trusted) transmission guy and he said "sure Dex-Merc is fine"...but I didn't get any warm fuzzies because he seemed too busy to give me any (logical) details. Thank you again Marc. I appreciate how you continually take time for others and...how much of a valuable asset you are to this club.

Kind Regards, Bob

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PostSubject: Re: Correct Transmission Fluid   Thu May 22, 2014 10:14 pm

DexMerc is actually better than plain original dextron. Its a little thicker, so it doesn't break down as fast and gives better cooling and lubrication capabilities.

So I don't think you will have any issues

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PostSubject: Re: Correct Transmission Fluid   Sat May 24, 2014 9:20 am

Well I decided to pour the Dex-Merc in last night..so it's a done deal. Got to get that car down on all fours and start driving her. Normally, I would have been driving all my old rides by early April! Thanks for all your input guys.


Bob

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