MOPAR ATF +4 Spec Sheet?

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Wild one

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From what I can find Detroit has waffled on that claim lately, now it refers to recommended manufacturer oil or something, not specifically non-synthetic. Lots of people on bitog and others that use synthetic non friction modified fluid with no issues. The Torsen doesn't rely on clutch friction so I'm not sure that synthetic would have a negative effect anyways?
I also change diff fluid on a yearly basis,good news is GL5 mineral fluid is cheap,lol
 
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HEMIMANN

HEMIMANN

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I believe the POE in redline is causing the slip in the zf8s. Whatever they did to the zf8s it doesnt seem to agree with redline. As far as i know it uses the same additive package as amsoils low viscosity fluid but amsoil is all PAO. HPL makes a PAO/AN atf using a state of the art addive package for zf8s and its green just like zfs fluid. They also make a blue atf thats also pao/AN that might work for you. I believe they recomend it in place or atf +4

As far as gear oil its hard to beat delvac 1. I got it in my front diff. HPL has their line of incredible gear oils. They are used in everything from border patrol fleets, big rigs, to pettyGMS team in nascar. Its good stuff!

I have the RFE. I was just puzzled why ZF is picky.
 
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HEMIMANN

HEMIMANN

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My plan for a TruTrac is RedLine NS, but I've seen results from people using almost everything without issue.

Depending what happens with base oil type you need, if you end up with synthetic, the Amsoil supposed independent gear oil test ranked their own #1, of course, then Mobil 1. Red Line was ranked 5th.

For synthetics, I would run Amsoil Severe Gear 75W-90 if a limited slip rear differential, and Mobil 1 Delvac without limited slip or other clutches - especially in a torsen all-gear differential. Which is what I have.


Since 4x4 front differentials are usually open (no clutches or lockers), you can use whatever you put in your rear differential into your front also.
 
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HEMIMANN

HEMIMANN

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No clutches it's a torsion style limited slip unit.I'm just aanal about preventive maintence,lol

Then I don't get why they spec mineral oil. Maybe they're worried about slow lockup with synthetic base oil? I know for sure they don't want limited slip additive in there. Took me a while to dig that out. On Eaton's web page.
 

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HEMIMANN

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  • A quality, petroleum-mineral based, GL5 rated 80w-90 gear oil should be used.
  • Synthetic oils are not recommended for Truetrac applications. While some customers have found that synthetic oils works well in this application, Eaton has not confirmed under test conditions that all synthetic oils are compatible with Detroit Truetrac applications.
  • Friction modifiers should not be used because they will decrease performance (reduce differential bias).
 
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HEMIMANN

HEMIMANN

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Thanks, won't let me access without a subscription. Got too many already. I see the Shell logo at the top. Didn't like the intro of Group II & III blend. Might be too old, though.
 

06 Dodge

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Is this the Valvoline product discussed as good alternative to Mopar ATF?

View attachment 510403

My self would not use it, they make an ATF 4+ trans fluid, I'm not one to try any ATF that does not list ATF 4+ on the front label, at this time the only AFT I would use that is listed as multi vehicle is Amsoil as I used it on my 06...
 

danielmid

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My self would not use it, they make an ATF 4+ trans fluid, I'm not one to try any ATF that does not list ATF 4+ on the front label, at this time the only AFT I would use that is listed as multi vehicle is Amsoil as I used it on my 06...
Your '06 had a vastly different transmission.
 

Wild one

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Question, is the Mopar transmission pan gasket rubber or other? For the ZF
It's a rubber like gasket,lol. I just stumbled into these guys,their service interval down a few paragraphs surprises me,but i kind of wonder if they don't have the service interval between the RFE and the ZF mixed up

 
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HEMIMANN

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No clutches it's a torsion style limited slip unit.I'm just aanal about preventive maintence,lol

I read a sheet positing the torsen all gear differential has a frictional brake on the torsen bevel gears that allows them to lock to the spider gears - this is what they are concerned about having just the right amount of lubrication so the lockup is quick.

Apparently, limited slip additive really slows it down, and they are paranoid about synthetic base oil slipperiness However, their statement implies they did successfully test some of the synthetic gear oils without issue. I sense they don't want to be on the hook for any 'synthetic' base oil blend anyone comes up with.

I haven't had any trouble locking up with Mobil Delvac 1 gear oil. And we've had a bunch of snow to date - over 30 inches, and wind drift.

You might consider since mineral gear oil turns into molasses for us in winter.
 

Wild one

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I read a sheet positing the torsen all gear differential has a frictional brake on the torsen bevel gears that allows them to lock to the spider gears - this is what they are concerned about having just the right amount of lubrication so the lockup is quick.

Apparently, limited slip additive really slows it down, and they are paranoid about synthetic base oil slipperiness However, their statement implies they did successfully test some of the synthetic gear oils without issue. I sense they don't want to be on the hook for any 'synthetic' base oil blend anyone comes up with.

I haven't had any trouble locking up with Mobil Delvac 1 gear oil. And we've had a bunch of snow to date - over 30 inches, and wind drift.

You might consider since mineral gear oil turns into molasses for us in winter.
He's in Virgina i think,so cold shouldn't be an issue,but for anybody in the Northern States or Canada,you might be onto to something with the Delvac.I've never had any issues running just cheap Canadian Tire GL5 mineral lube,but my truck also doesn't come out very often in the winter
 
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HEMIMANN

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He's in Virgina i think,so cold shouldn't be an issue,but for anybody in the Northern States or Canada,you might be onto to something with the Delvac.I've never had any issues running just cheap Canadian Tire GL5 mineral lube,but my truck also doesn't come out very often in the winter

Yeah, here in central Minnesota, when it gets really cold in the dead of winter it makes a huge difference in getting a truck moving. Even though I keep mine in a partially heated garage, I still go out for events and errand where the truck sits outside. It also mattered when the truck sat outside at work all day.
 

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I bought 2 jugs of the Valvoline Max life ATF this morning…4 bags of Valvoline 75-90. I just changed front and rear diff fluid. Truck is at 80k. Both old fluids very much same color as the new oil that went in. Front diff had a teeny piece/flake of metal but otherwise no chunks lol.
Went to do the T-case and checked my fluid pump, it was cracked. So I summoned Amazon fora new pump. Will wait and do it when my ZF pan gasket arrives. Thanks for that link @Wild one
 

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Closest thing to specs I found was this
That's because we don't really need to know, our pretty little heads wouldn't understand the big concepts, just shut up and run mopar oil even if it is rebranded garbage up to 3x as expensive. You are risking horrible consequences if you don't, lol. Then you see a study where the only two worse oils then Mopar are RP and Lucas, lol.

You compare the fluid he ended up going with compared to the Mopar fluids it is gonna be a huge difference in performance in cold and the viscosity index. That redline c+ might be the best product redline sells. Look on the stat sheets alone, well if you can find them.
 
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