65rfe 4th gen 6 speed auto xsmn .

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Hemi395

Hemi395

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The wife and I picked up our new 21' TT this afternoon. 3100lbs dry weight. It was about 80 the whole trip and my trans temps never got above 145*. I think this is where the MH pan and Redline C+ really shine which is under load. I couldn't believe how cool my transmission was running.133106f69c1bbbd71a3ce118c7a8d7c2.jpg
 
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R.L.K.

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Today I drained & refilled my XSMN oil , AWESOME ! Just under 8 qts .

About 2500 miles ago I installed a Mag-Hytec Xsmn Pan with a drain plug , I serviced it with Redline C + ATF then , today was a pre planned attempt to just get closer to 100% Redline C+ in my XSMN , I may do one more next spring then at 25 k increments for me ...

12e81cc732066af294a7188c70817819.jpgadc51f338c49eb4f06007f499fe0d8d3.jpg33d90de2b3dc6d406cdf44d209a1b57a.jpg

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U&A

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Awesome Ronnie! This fluid really idid make a world of difference in how smooth my 66RFE shifts now.

On a side not, yes it shifts smoothly but i will be 100% honest about the shift points on the 66RFE paired with the 6.4. It pretty much suck unless you are in tow/haul mode when in town. On the highway it is good but not great. I need to manually downshift to 5th on hills because the truck waits to long unless i put my foot in the gas to make it do it.

To he honest again.... the truck shifts GREAT when im towing and working it hard. It shifts GREAT when i have to "get on it" durring daily driving. But causal driving you NEED tow/haul mode.

4.56 gears would help tremendously with this issue...

Sorry for my rant.

Your 25,000 mile incriments sounds like a good idea. I have been thinking 25,000 for a regular change and filters as well. Thats about 2.5 - 3 years for me.
 
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R.L.K.

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I'll probably drop the pan & change the filters again @100k which would be about a 50k intervals for me . I definitely think my 65RFE shifts better on the Redline C +

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Hemi395

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My 65RFE shifts amazing on C+. There's a clear improvement in shifting over the stock fluid. And the temps under load are nothing short of incredible.

U&A, I agree it's not the best for downshifting but in TH mode it's much better. I was really impressed with the engine breaking and shift points while towing my TT home the other day.
 
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Hemi395 said:
My 65RFE shifts amazing on C+. There's a clear improvement in shifting over the stock fluid. And the temps under load are nothing short of incredible.

U&A, I agree it's not the best for downshifting but in TH mode it's much better. I was really impressed with the engine breaking and shift points while towing my TT home the other day.
Click to expand...

THIS!!

my temps while towing 4,000lbs just a few weeks after the FIRST ( iv done 2 now) fluid change are EXACTLY the same as durring daily driving. On OEM it would have gone from daily driving (172) to 180 easy.
 
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R.L.K.

R.L.K.

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I have no idea why all my pictures a broken in post # 3 ??? Anyone know how to recover these photos ????



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U&A

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Having a problem seeing pictures today! LOL
 
Hemi395

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I'm pretty sure it has something to do with Tapatalk. My spark plug change thread was missing pics the other day and I had to re upload them from my phone. Once I did that they are now sideways. I would love to be able to upload a bunch of pics on my laptop but it only allows a Max of something like 5 pics which is ok for some things but a how to thread usually has a bunch of pics.
 
U&A

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Hemi395 said:
I'm pretty sure it has something to do with Tapatalk. My spark plug change thread was missing pics the other day and I had to re upload them from my phone. Once I did that they are now sideways. I would love to be able to upload a bunch of pics on my laptop but it only allows a Max of something like 5 pics which is ok for some things but a how to thread usually has a bunch of pics.
Click to expand...

I hate to say it, but the cloud is your friend for picture storage. I hate putting them out there like that but i ran out of space.
 
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R.L.K.

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Check this out

57553d295c00e4c82ee6cf479e1551dc.jpg

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R.L.K.

R.L.K.

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Based on this I'm a bit low

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SyN

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RLK: Thanks again for this thread.
I will be installing a Mag Hytech pan as well.
Probably late into the next summer months. To help with cooling while towing as well as easier service.
Especially before a long summer vacation trip pulling the 5th wheel.
Drain the pan & add fresh ATF.
Yes I know it will be only draining 1/2 the ATF but that alone has it benefits.

I will probably replace the rearend cover first & refill with a RL 75W-90/140 combo.


Nick has quoted me a great price.

Thanks again.
 
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R.L.K.

R.L.K.

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No worries mate !
I agree , larger capacity pan , multiple deep cooing fins = cooler running ATF , easy pan drain & Refill ....also with the larger capacity when you do a pan drain & refill your putting in more fresh ATF than with a stock pan ....[emoji16][emoji16]

I'm just glad this thread could help folks out !!

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Nick@GotExhaust

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Awesome thread. Great write up. Im going to have to slowly read threw this as i get the time. looks like another awesome informational one!

We offer Gallons of the Redline for you Redlineaholics
c9bdee91-7ca9-483a-a32e-0a0faf58165c-420.jpg

We also offer maghytec products too!
 
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R.L.K.

R.L.K.

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Awesome !!! Nick
Nice to see you here as well Sir !!

Definitely take a good read here starting with the beginning , lots of guys have contributed making this a pretty good thread imo .

Thanks to all of you guys that have commented within this thread !
I hope I've helped out with the OP !!

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Marczing

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Question is anyone removing the cooler line to flush the torque converter? Is dump and fills ok?
This is what most places are doing.
Isn't the idea to put fresh fluid in?
Thanks
Awesome post.
 
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