Really wish ppl would stop bringing me trucks with hydraulic fluid in trans

[Supercharged111]

Indeed, you're right....the OP did say that and I missed it. Yep, I don't agree with it. Looks like perhaps the "bottle" was talking, during that post?

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[Scooterwrench]

I don't get it. I've used John Deere HyGard in performance TH350,TH400, 4L60E and 4L80E builds for years. The trans runs 20-30* cooler, survives alot longer under extreme conditions (racing, pulling, etc.) It even tightens the stall up by 2-300 rpm, shifts faster and cleaner.

What factual proof, do you have aside from "The OEM wants fluid X or fluid Y"?

Maybe we ought to go back to ***** whale oil. That's was the original ATF.

 

[95burban]

i used power steering fluid in my trans (jeep xj). It was better than walking back to camp.

 

[Supercharged111]

i used power steering fluid in my trans (jeep xj). It was better than walking back to camp.

I believe that has more anti-foam crap and fewer detergents. But aside from that I really don't know the diff.

 

[95burban]

I don’t either, it was a trail rig so it was abused.

 

[PlayingWithTBI]

Oh boy, another "which oil is the best" thread!

 

[Supercharged111]

Oh boy, another "which oil is the best" thread!

You know as well as I do that whatever I run is superior to what anyone else is.

 

[RDF1]

Ive used cheap "303" hydraulic fluid in a ton of TH400s and Powerglides. It works plus it can tighten up the torque converter some too.
AW46 works good as well as the low vis John Deer Hyguard.
Some of these 1600hp turbo trucks running 4L80's with a fixed pressure and transbrake last longer with Hyguard for some reason.
Ive killed more transmissions while using Dex III than anything.. SO i guess that is bad fluid?

 

[Supercharged111]

Ive used cheap "303" hydraulic fluid in a ton of TH400s and Powerglides. It works plus it can tighten up the torque converter some too.
AW46 works good as well as the low vis John Deer Hyguard.
Some of these 1600hp turbo trucks running 4L80's with a fixed pressure and transbrake last longer with Hyguard for some reason.
Ive killed more transmissions while using Dex III than anything.. SO i guess that is bad fluid?

If correlation= causation then yes. Seems to work for politicians.

 

[Vikingdude]

Bob Is The Oil Guy is an entire forum dedicated to armchair engineers arguing about which dinosaur juice is better, and its absolutely insufferable. I second the motion to return to whale oil.