whixh ATF for older 4L60e?

[luca]

I have a '98 GMC K1500 with 75k. Truck runs great, but the transmission fluid has probably never been changed in it. I plan on dropping the pan for a filter change and get some fresh fluid in the old 4l60e. Im also doing a deep pan upgrade that'll add 2 qts of capacity.

Which fluid should I go with on an older 4l60e with low miles?

I believe the original manual calls for Dex III (Dex Iv), but have heard maxlife is great stuff as well that should be compatible.


Thoughts?

 

[Farmer]

Maxlife. I use this for most vehicles at the farm that require whatever specs on the back.

 

[Oro_O]

I do not think they made any internal changes for the III/VI switch. Maxlife is good stuff and cheap enough in gallons at WM - can be overpriced elsewhere.

Get a pan with a drain plug - some don't have it. Or weld in one.

 

[Shannow]

Maxlife Universal

 

[jmb106]

Maxlife good stuff.

 

[demarpaint]

Add me to the Maxlife list.

 

[Lubener]

I am changing my older, low mileage 4T60E next week, I already got my DEX 6. If you plan on keeping it a long time, order an upgraded pan with a drain plug from Rock Auto.I'm not into universal fluids.

 

[SteveSRT8]

While I am a big believer in Dex VI I also know from experience that Maxlife is excellent stuff. Use it with confidence...

 

[JHZR2]

I have Dex VI in my 98 S-10 with the same AT and 70k. Granted I've changed it once or twice since new.

 

[slacktide_bitog]

Maxlife will serve you well.

 

[luca]

Maxlife it is!

The deep pan I'm installing has a plug on it as well.

Thanks guys!

 

[barkingspider]

I have used dex/merc, dex 6, and maxlife in older 4l60e. I couldn't tell the difference. Any of these will serve you well.

 

[meborder]

I just use supertech dex 3 in my plow truck with 4r700.

Never any worries using it.

If the price is right, consider that an option as well.

 

[Boss302fan]

Maxlife...

 

[Fsharp]

What deep pan are you getting? I always get one of those Derale deep pans with the cooling tubes. They have a drain plug and don't require an extended pick up.

 

[luca]

I got the dorman deep pan. It came highly recommended from most of the GMT400 forums. I also got a compatible AC delco deep pan filter too.

 

[901Memphis]

I hope it works better than my Dorman pan with drain plug for my 4T65e, it dripped at the plug so I went back to the oem pan

 

[crazyoildude]

I would use the max life it never let me down and always worked great.
And another plus is it is cheap at wal mart and always fresh because they sell a lot of it.

 

[FastLane]

I bought the Dorman pan.... The shift linkage binded so badly I had to switch back to the factory pan. I strongly don't recommend it.

I used Mobil Dex VI but next change it will be Maxlife.

 

[Fsharp]

Originally Posted By: luca
I got the dorman deep pan. It came highly recommended from most of the GMT400 forums. I also got a compatible AC delco deep pan filter too.


Well I like the low price. I saw it online, some people said they switched the brass washer for nylon on the drain plug to stop it from leaking.