1st Gen Durango 1998 - 2003 Durango's

545rfe transmission question

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Old May 29, 2014 | 10:01 PM
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Default 545rfe transmission question

so i have a 2003 durango 4.7l 545rfe transmission i do believe and what im wondering is when i put my D in drive or reverse it doesnt move forward or creep ahead until i hit the gas and then it engages once i hit about 1000 rpm and its concerning me as i want to keep my D for a long time. Also im thinking of doing a transmission fluid/filters change and use royal purple max ATF to see if the transmission will last longer and drive better. Any help would be appreciated. thanks.
 
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Old May 30, 2014 | 09:29 AM
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Royal Purple is not accredited for use in ATF+4, but neither is Mobil One FS ATV that I'm trying either....LOL

If it were me I would drop the pan, change both filters, refill with Valvoline Fully Synthetic ATF+4, then purge all the old fluid out for a full replacement.
 
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Old May 31, 2014 | 12:54 PM
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on the royal purple site it says that the max atf works as a chrysler atf plus 4 oil or so i read off of there site.
 
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Old Jun 2, 2014 | 11:21 AM
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So it does now....Hmmmmm....I looked at the MSDS and this is what I got:

Components:
. Base Oil (synthetic) . Synthetic additives with iso-paraffinic diluents.
. The precise composition of this oil is proprietary. A more complete disclosure will be provided to a physician or nurse in the event of a medical emergency.



What, they are so proud of their lubricant but won't tell us what base oil is used? I bet it's a Hydro-Crack in the way they state it in their MSDS which is no more than an Valvoline Fully Synthetic ATF+4 which costs 1/3 less. Anyway if you want to see actual accredited accounts then look here: http://centerforqa.com/chrysler/licensed-atf4-brands The way that Royal Purple is getting away with listing it is the statement:

"Max ATF is fully compatible and can be mixed with other automatic transmission fluids"

But let me say this, I'm using Mobil One Fully Synthetic ATF and it's done the job, it isn't accredited but I decided to test it anyway. This lubricant looks ok, but when looking at the MSDS doesn't hold anything over what's listed in Valvoline, just say'in.
 
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Old Jun 3, 2014 | 07:41 PM
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ok well thanks for the info but i think ill try royal purple like you tried the mobile one and see what i think of it because maybe well find that we get the same result lol and if my transmission fails then ill post the results lmao.
 
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Old Jun 4, 2014 | 11:33 AM
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That's what I'm doing. The Royal Purple does say it's Allison C-4 compliant so I would assume it should do the job.
 
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