How often do you guys change your TRANNY / Transmission fluid?

put the 6 qts back!!

about every 2-5k miles.... ya know when i have to take the pan off cus somethings broke again lol...


2005 3500 4wd cummins Laramie

Where can you find the filters? 2007 Ram 1500 Hemi 4x4

03 4.7 2X4, 163k miles.
Just did a full fluid swap a few weeks ago. It had been last changed at 99k miles. I went ahead and changed all of the fluid by pulling the return line while filling it back up. No problems here. The fluid was a pretty dark shade of red. We don't really haul anything on a regular basis. Changed the sump and oil cooler return line filter. Well worth it. At 180K, I will only do a sump filter and fluid swap. Every 60k miles, full fluid swap and both filters.

I just flushed my tranny and put Amsoil in it. I won't be changing it for quite a long time. It's an '04 Ram 1500 QC SLT

Originally Posted by Medic-5150

I just flushed my tranny and put Amsoil in it. I won't be changing it for quite a long time. It's an '04 Ram 1500 QC SLT

I am a HUGE Amsoil fan. But not for the Dodge tranny. I tried it, and dumped it and went back to Valvoline ATF+4 Synthetic. These trannys seem picky, and the Amsoil was seeming to make it "slip" into gear. The mechanic warned me, and he is an Amsoil dealer, but against his warning I did it anyway. Never again. Its a great product, and its in my diffs, Oil, Transfer Case. But not my tranny.

im afraid to. i bought my truck with 95k on it. i assume it was never changed as the truck was neglected. i was always afraid to cuse it often causes problems if it hasnt been kept up with. shes got 143kish on her now still doing good.

#1. my truck has 105k. had it since 70k. i assume everyone will suggest i just do a pan drop and oil refill. 7qts or so. i know not to do a flush, but would you guys pump out the torque convertor too and get all the oil out i can while im in there? or is a 50% change of oil the right mix for an old tranny?

#2. why are some people adding 80weight gear oil to their trannys?

#3. how many inches lower is a new higher capacity oil pan, and how many quarts does it add to the capacity. its basicly just to spread the heat out a little more right? keep the temps down.

Every 60,000 miles on all of my trucks.

I have 181,000 miles on my ram and have never flushed/ changed the fluid...is it too late to do it?

Originally Posted by 318rumble

I have 181,000 miles on my ram and have never flushed/ changed the fluid...is it too late to do it?

You could possibly change the fluid and filter but with that many miles I wouldn't suggest a flush, it might knock loose some debris that can cause damage.

i thought it was pretty funny i brought my truck to a local shop when i bought it last year to change the fluid filters and adjust the bands i looked under there a few days later and they didnt even drop the pan there was no marks on any of the bolts either lol

So what is the consensus on Royal Purple ATF? I see they do reccomend it ok for Chrysler trannys. ATF+4 I have used it with great results in my diff's and engines on the HEMI and my racecar. Also in my TH400 in the racecar. 75K Km on my Hemi tranny now, I should change it.
Also, how much do I need? I read you can pull the cooler line and run it out? Do you idle till it just stops pumping? Isn't that bad for internals? Run them dry??

I have ~130k miles on the truck at the moment.

I did the first at 30k, second at 60k, 3rd at 100k. Going to do the next at 150k, and every 50k after that.

Here are my thoughts:

- NEVER backflush this transmission. There is no point since there are two replaceable filters in the design, and it will only cause problems from blasting the junk already in the filter back into the system.
- Simply doing a pan drop / filter change / fluid refill at some normal interval should suffice for just about all trucks.

I don't change my transmission fluid.. Don't think I have ever changed it.

Now, I do change Transmissions. For a few years, I would put a rebuilt one in every 6 to 8 months. Saves on the ATF fluid costs.

I doubt I'll ever own a transmission that lives long enough to change fluid.

Pan drop every 15,000 miles. Only put about 8,000 miles per year on er.

I just changed mine at 52k may have been done once by previous owner but notsure. Fluid was still really red and unburnt. Used 10qts of adavanced auto parts ATF+4 and 1qt of lucas trans conditioner on just a pan drop.

Originally Posted by N1K

I just changed mine at 52k may have been done once by previous owner but notsure. Fluid was still really red and unburnt. Used 10qts of adavanced auto parts ATF+4 and 1qt of lucas trans conditioner on just a pan drop.

Wonder how our trans like that Lucas trans conditioner? I wouldn't have the balls to add that stuff.

once a year i'll drop the pan and do the filters, I also added a drain plug in the pan and a bung for a temp sensor probe. I use nothing but amsoil on my rigs .

i change fluid and filters every 25,000... at the recomendation of my transmission shop
as it is my daily driver at an 80 mile round trip to and from work at 3.74 a gallon 11.5 miles per gallon