Aisin Trans fluid at Rockauto

[AH64ID]

https://www.cumminsforum.com/forum/...aisin-as69rc-transmission-4.html#post19451002

You’ve got some great experience with the AISIN, and it’s rather helpful. You run a very different duty cycle than I do.

If I spent more time on the highway and less time slow on back roads I’d likely just stick to the conventional fluid. I end up with a decent amount of my towing being slower and hotter than most, which is why I like a synthetic fluid. It’s overkill for sure, but I’m okay with it.

 

[campertruck]

I only have 30,000 on my 2016 with the 6.4 Hemi but it has the AS66SCR Aisin. I looked up this fluid and it's what Aisin recommends for the transmission and it's showing the ASCR requirement right in their description. I run Amsoil in all of my engines and love it but with the transmission I will stick with the Aisin fluid as I don't know what distinct properties they want out of the fluid as to friction modifiers, etc. . The 30K service is just draining the pan which has a plug so it's really no work. Mine took about 6-1/2 quts for the change. Fluid looked and smelled like brand new. My truck is loaded with a camper on the back 95% of the time and it has been through some steep mountain driving. I am very happy with how that transmission performs. Transmission fluid temp never goes above 167 degrees.

 

[TFucili]

Deleted

 

[Wayne M.]

Nice score. Between Walmart,Rock and Amazon, all the fluids are covered. I got a great deal in the 10 year premix coolant on Amazon.

 

[gsbrockman]

Nice score. Between Walmart,Rock and Amazon, all the fluids are covered. I got a great deal in the 10 year premix coolant on Amazon.

Out of curiosity....why would you buy premix and not the concentrate? Given the cost of one gallon of distilled water (under a buck) the premix you end up purchasing sure has some expensive water in it.

 

[gsbrockman]

I am running AMZ/OIL in mine. I am hoping to hear from someone that was interested in doing a complete change. I sent him what TransEngineer sent to me.

Are you implying you only performed a PARTIAL transmission fluid change?

 

[gsbrockman]

@AH64ID

https://www.cumminsforum.com/forum/...stion-those-math-skills-better-than-mine.html

 

[AH64ID]

@AH64ID

https://www.cumminsforum.com/forum/...stion-those-math-skills-better-than-mine.html

I went thru and did that math when I flushed the coolant on my 05. It takes a few flushes.. but that was with distilled water, not $$ ATF fluid.

Unless the fluid gets burned I’m not sure there is a need for a 100% change.

 

[gsbrockman]

I went thru and did that math when I flushed the coolant on my 05. It takes a few flushes.. but that was with distilled water, not $$ ATF fluid.

Unless the fluid gets burned I’m not sure there is a need for a 100% change.

I would agree...
On my 2014 RAM 3500 and my 2018 RAM 4500.....dropping the lower radiator hose yielded 5 gallons of coolant drained; system capacity is 5.7 gallons. I was happy enough with that and I didn’t even worry about running any straight distill d water through it. Worked great on the 2014 at ~150k miles and ~300k miles.

 

[AH64ID]

I would agree...
On my 2014 RAM 3500 and my 2018 RAM 4500.....dropping the lower radiator hose yielded 5 gallons of coolant drained; system capacity is 5.7 gallons. I was happy enough with that and I didn’t even worry about running any straight distill d water through it. Worked great on the 2014 at ~150k miles and ~300k miles.

Wow. Not bad for the 6.7. On my 5.9 only about 1/2 the fluid would come out on a drain, which is why I did several flushes.

The 5.9 block holds a lot more than the 6.7 thou, and is the main reason for the difference in cooling system capacities.

 

[Cummins12V98]

Are you implying you only performed a PARTIAL transmission fluid change?

Yep for now til I figure a good way to do the exchange.

I would like to get the converter tapped.

 

[gsbrockman]

I would like to get the converter tapped.

Post #27 will be a better route to take than tapping a converter.....

 

[Cummins12V98]

#27 does nothing for me. I’m hoping the guy that sent me a PM figures something out. He has a lift so it will be easy to figure out what to do, I hope!

transEngineer was worried drilling n tapping would leave leave metal in converter. If I was confident in a proper location I would not hesitate to drill n tap.

 

[AH64ID]

#27 does nothing for me. I’m hoping the guy that sent me a PM figures something out. He has a lift so it will be easy to figure out what to do, I hope!

transEngineer was worried drilling n tapping would leave leave metal in converter. If I was confident in a proper location I would not hesitate to drill n tap.

Why not buy one of the thermostat bypass valves and make a new output line that goes to a bucket?

I really don't think you need to worry about it, but it seems like that would be the best way.

 

[Wayne M.]

Out of curiosity....why would you buy premix and not the concentrate? Given the cost of one gallon of distilled water (under a buck) the premix you end up purchasing sure has some expensive water in it.

Completely out of convenience and the guarantee of the right mix. Been doing that for a long time. One plunge every 5 years (GO5) is not a big deal. Open my cap and have a look (and a sniff). I think it was a good choice.

 

[gsbrockman]

Open my cap and have a look (and a sniff).

I’ll pass........

 

[AH64ID]

Completely out of convenience and the guarantee of the right mix. Been doing that for a long time. One plunge every 5 years (GO5) is not a big deal. Open my cap and have a look (and a sniff). I think it was a good choice.

Interesting. If you flush the system the premix guarantees the wrong ratio... not the other way around.

But I guess if you don’t flush then premix would work, but goes against the recommended maintenance interval.

 

[Wayne M.]

*Not to get too far off the subject of this topic*
Ive done two “flushes” and even then they were drain/ refills. Unless you have a contamination issue, I think the drain/refill is fine unless you have a unlimited supply of neutral water, especially when dealing with this type of coolant. I’m more concerned about introducing scale and creating a ph imbalance. I do keep some full strength around in case I do come up light.

 

[AH64ID]

That’s the difference then. The service does call for a flush and replace on coolant, vs the drain and refill on the AISIN.

 

[Cummins12V98]

Why not buy one of the thermostat bypass valves and make a new output line that goes to a bucket?

I really don't think you need to worry about it, but it seems like that would be the best way.

That’s a thought. As mentioned I am hoping the guy that messaged me about this will use TransEngineers advice I forwarded to him and get an easy way to do it. He has a lift so that will make it easier to figure it out.