Aisin transmission fluid

[Cummins12V98]

....and no one should realllllllly be concerned with not doing the “improper fluid exchange” on the AS69RC as if one is relatively faithful to the supplied maintenance regimen, it will perform great for many, many, many miles. Not hearsay, not a rumor, not a speculation......just plain old FACTS.

Figured you would chime in. SOME of us prefer to change ALL the fluid when servicing our rigs.

NEVER have seen it say drain part of the fluid. It says to change the fluid.

I will do as I like and you do as you like. Kinda like filter from the top as I like it or filter from the fender.

 

[AH64ID]

Figured you would chime in. SOME of us prefer to change ALL the fluid when servicing our rigs.

NEVER have seen it say drain part of the fluid. It says to change the fluid.

I will do as I like and you do as you like. Kinda like filter from the top as I like it or filter from the fender.

Actually the FSM procedure for the 30K service is to drain and fill, that’s it. I would say that’s pretty cut and dried.

There isn’t a procedure to change all the fluid because it’s not needed, recommended, warranted, etc. Simply follow the FSM and call it good.

With 30K mile intervals on a drain/fill this transmission is on the over serviced side of the interval and there is nothing wrong with drain/fill.

 

[Cummins12V98]

Whew! I'm glad you posted that. I'll be creeping up on my 30K fluid drop, and thought I'd have to drill a hole in the converter

I would if I knew where to drill.

nice to kids around be be HONEST you partial fluid guys if the AISIN had a drain plug would you use it or not?

Don’t say it’s not there so it’s not needed. I bet Ford does not pop plug unless you pay them extra to do so.

 

[Cummins12V98]

Bottom line I do it how I want. Plenty think how I do.

 

[Wiredawg]

Allthough I did the FCA listed way to change Aisin fluid at 30K miles, I'm likely going to take it to the dealer and have a flush and fill. They have the machines to do it. Doing the brake lines on my RV right now is highlighting that my do it youself days are running out with mostly back and neck issues.

As to the Aisin Fluid change intivals, Ram must be erring on the conservative side as short interval seems excessive.

Greg,
You have the highest mileage, towing wieghts, and duty cycle of anyone I know... do you see any significant difference in color or wear particles when you change your Aisin fluid? I thought you posted once the before and after on a paper towel. I saw some tow numbers comparable to yours when hauling generators and a few things for sure: I'm glad it was with a Ram, a Cummins, and an Aisin. I beleive we all share those bragg'n rights!

Finally, as with all the oil, transmission, and axle fluid threads, it's expected to be lively, but in the end, it's still interesting to see all the positions represented.

Christmas Cheers, Ron

 

[Cummins12V98]

Dawg, you know for a fact they are capable of changing ALL the fluid on the AISIN?

 

[kthaxton]

Figured you would chime in. SOME of us prefer to change ALL the fluid when servicing our rigs.

NEVER have seen it say drain part of the fluid. It says to change the fluid.

In one of these discussions in the past, someone posted exactly what the FSM considers as a transmission service, which is the typical pan drop that has been used for decades. Apparently you forgot or ignored it when it was posted.

However, I recently purchased an FSM for my 2015, would you like me to post what the manual says?

You can do what ever you like, but stop pretending the factory requires a complete fluid change...or that it is even remotely necessary under normal circumstances.

 

[Wiredawg]

Dawg, you know for a fact they are capable of changing ALL the fluid on the AISIN?

Yes, even more than a complete drain and fill, they flush it as well. Not specified in FSM, but every since the dealer and some high end auto repair shops started offering the transmission flush service, I've had it done. Had it done on my LRE transmission as well.

I don't mention the transmission flush service much as a lot of my friends and family think I'm wasting my money. Just like everything discussed here, it's mostly personal preference what, how, when, where, and if to do it.

Christmas Cheers My Friends! Ron

 

[lpennock]

After having the couple transmissions I had a flush on go bad right after the flush I avoid it personally. Could just be a coincidence but I'll stick with drain and fill.

 

[Wiredawg]

After having the couple transmissions I had a flush on go bad right after the flush I avoid it personally. Could just be a coincidence but I'll stick with drain and fill.

I'm told that a transmission that's older, has a lot of miles, or other things, or if not properly and exactly done right, it could go wrong.

EDIT: Probably the most critical criteria I know is finding a shop that knows how to do them. I'm betting solvent killed those trannys... its major science to do it right.

Same holds true with engine oil flushes. My BIL mixes diesel with engine oil, he's a master diesel mechanic... something I'm told old timers used to do. Way beyond me on both.

Ron

 

[AH64ID]

After having the couple transmissions I had a flush on go bad right after the flush I avoid it personally. Could just be a coincidence but I'll stick with drain and fill.

Depending on how they are flushed this is more common than people think. It's not always from the flush, sometimes the transmission is already damaged and the new fluid and damaged clutches don't play nicely together.

Even when flushing you can't get ALL the fluid out.

 

[HPSimpson]

Yes, even more than a complete drain and fill, they flush it as well. Not specified in FSM, but every since the dealer and some high end auto repair shops started offering the transmission flush service, I've had it done. Had it done on my LRE transmission as well.

I don't mention the transmission flush service much as a lot of my friends and family think I'm wasting my money. Just like everything discussed here, it's mostly personal preference what, how, when, where, and if to do it.

Christmas Cheers My Friends! Ron

Ron. your time crawling under the truck changing the transmigration fluid, let your dealer do it, your health is way more important than anything.

 

[Cummins12V98]

Yes, even more than a complete drain and fill, they flush it as well. Not specified in FSM, but every since the dealer and some high end auto repair shops started offering the transmission flush service, I've had it done. Had it done on my LRE transmission as well.

I don't mention the transmission flush service much as a lot of my friends and family think I'm wasting my money. Just like everything discussed here, it's mostly personal preference what, how, when, where, and if to do it.

Christmas Cheers My Friends! Ron

I just wish I could as I have done on my 11 with 68.

 

[Cummins12V98]

In one of these discussions in the past, someone posted exactly what the FSM considers as a transmission service, which is the typical pan drop that has been used for decades. Apparently you forgot or ignored it when it was posted.

However, I recently purchased an FSM for my 2015, would you like me to post what the manual says?

You can do what ever you like, but stop pretending the factory requires a complete fluid change...or that it is even remotely necessary under normal circumstances.

I am referring to what came with MY truck.

How many have a FSM anymore.

my point is if it’s easy to do all the fluid why not. I have not given up on this.

sounds like I could pay to have it done but that’s not my style.

 

[Cummins12V98]

After having the couple transmissions I had a flush on go bad right after the flush I avoid it personally. Could just be a coincidence but I'll stick with drain and fill.

I have heard this also.

 

[smittyd174]

All they say is to do a filter and partial fluid change so that's what it gets. If you had a dedicated flush unit for each type of fluid it could be done. I only guessing hear but Dodge would need 5 or 6 because they have so many different trannies and fluids. Cross contamination is bound to happen. Besidesthey can soak you for a special change.

 

[kthaxton]

I am referring to what came with MY truck.

For which the "service" is the same.

How many have a FSM anymore.

Why would that matter? The manual says what it says, no matter how many people own one.

my point is if it’s easy to do all the fluid why not.

Actually, your point on this is often "NEVER have seen it say drain part of the fluid. It says to change the fluid" or "you wouldn't change only part of your engine oil". Which is wrong, or misleading.

Even one of the engineers of the 68RFE was here and told you what a fluid service consists of.....and you still dispute it.

I have not given up on this.

Obviously, but don't be surprised and/or whine when us vultures circle these discussions and point out that you are giving out wrong or misleading information.

As has been said many times before, if you merely stated that is what you like to do, there would be no issue, but when post incorrect information, or imply that it is somehow needed, that's when we have a problem.

 

[AEdelheit]

I wonder if everyone worried about changing every bit of fluid out realizes how much engine oil is still left in the engine after a 10 min drain......

 

[smittyd174]

Wow, as many times as the simple question which fluid for the Aisin has been asked it still amazes me it stirs up so much crap. If Dodge follows these forums they would love it as they know there is still alot of confusion over Aisin miracle fluid. This allows them to fleece the uninformed public. I had my 1st done at the dealer $550 Canadian , I said you're nuts and ended up paying $400 still crazy. It's now time for it again warranty is up and I'm planing to spend less than $120 for materials and about an hour of my time.

 

[Wiredawg]

I wonder if everyone worried about changing every bit of fluid out realizes how much engine oil is still left in the engine after a 10 min drain......

Everything I change fluid on gets drained at operating temp overnight. In the 70s I didnt really change oil, just added it when the red light came on.

All:
I know the threads on oil, transmission fluid, differentials, powersteering, and maybe brake fluid has different opinions on how to do em. what to use and when, but for my part, getting as much of the old out and the new in is good, however you want to do it. FSM or whatever procedure you use is good.

My final comment on flushing my transmission when filter change required likely puts me in the smallest percentage on the forum and in the universe (statistics term) and it don't bother me at all. And I don't criticize anyone for the way they do it. Its all good, but I won't mention it again.

Cheers, Ron