I just dumped the ATF out of my pan again. What is the best fluid to use?

It's a all stock 4L60e and I already dropped the fluid once before along with swapping the filter. Last time I used regular old ATF from VatoZone.


I use Dexron Vi in my Impala in mix with the left over stock ATF and it seems to be doing real good.


What do you all suggest/use?

 

Anyone?


I wanna put some new juice in, just don't know which one

 

LMAO


Enough said. . . . Just as good as the Synthetic Vs. Conventional, nice. . .



Oh well, ATF it is.

 

The best fluid is the one you like using.

 

Well, not to start another war...but....with the truly premium fluids (nothing you'll find on the shelf at any parts store) you'll typically see a 20-30 degree drop in tranny temp. Don't know about you, but that tells me that they work better because they do a better job of reducing friction. As such, they will also make your tranny last longer.

 

not to hijack, how much fluid for a 4l80e with a B&M trans cooler? stock pan.
I put 7 ob mine and I think it needs a little more.....

 

And what does your dipstick say? Just because you put a cooler on it doesn't make the dipstick wrong.

 

Which premium fluids are you talking about?

 

Let the fluid wars begin. . . . . .


I just wanted to know. . . I was about 98% certain ATF in my stocker is just that, ATF.

 

Those sold by companies like Hydrotex, Lubrication Engineers, Schaefer etc.
I'd have included Amsoil, but they did something recently that made me question their whole line.
I have first hand experience with both Hydrotex and LE. You pay more, but get much more in the bargain.

 

<hijack=on>

What did Amsoil do...?

 

To me, this answers the question:

http://www.sandyblogs.com/techlink/2...dexron-vi.html

 

The OP's question..?

The blurb at that website has some examples of marketing inspired creativity...

(reminds me of Dex-Cool literature published by GM in the past).

 

best bang for ur buck is wolfs head syn..according to my tranny guy

 

They have come out with a new oil intended to be put into Allison transmissions (World 2000, 2500, 3000) and meeting (not exceeding) Allison spec, the only problem is it's a near 100% clone of Allison TranSynd (a Castrol product), which is at very best a mediocre HD transmission fluid. I've seen the lab test results comparing the two....nearly identical in all areas.

 

Probably the most important statement in the article:
Too bad more people don't take this to heart with engine oil.

 

You will be fine with either a Dexron/Mercon fluid (made to meet old and expired GM Dexron III spec) or the new and GM licensed Dexron VI which is much more thermally stable and very shear resistant. Dexron VI is a less viscous fluid starting out than that of its Dex III counterpart, but unlike Dex III, Dex VI does not shear down half as much during service. For example, the Dex III starts out life at about 7.5 cst and is allowed to shear to about 5.5cst. The Dex VI starts out near 6.0cst and is not allowed to drop only a few points below that point and because of its formulation it doesnt. Two ways to skin a cat but the DEX VI is the fluid of choice and much superior to the III.

 

I used Dexron III for many years but have switched to Dexron VI with my new trans. D-6 is about double in price than D-3.

Bill

 

Does this stuff really lower trans temps by 20-30? If it does where do I get some?

Bill

 

Give them one of these companies a call to find your local rep.

www.hydrotexlube.com
www.le-inc.com
http://www.schaefferoil.com/