Diff Fluid?

[RRMach1]

Hey everyone! Going to be changing out the trans fluid soon, swapping the stock stuff with some Redline D4 and I figured I’d to the diff while I’m at it. What have you all used for it? I’m seeing Redline 75W-85 GL5, not sure if that needs friction modifier added to it.

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[xcm77]

For the rear diff, I went with https://www.ravenol-shop.de/getriebeoel/75w-85/ravenol-dgl-75w85-gl5-ls (it already contains friction modifier)

 

[RRMach1]

For the rear diff, I went with https://www.ravenol-shop.de/getriebeoel/75w-85/ravenol-dgl-75w85-gl5-ls (it already contains friction modifier)

Hmm so does GL5 fluid already have friction modifier then?

 

[xcm77]

Hmm so does GL5 fluid already have friction modifier then?

I literally wrote "it already contains friction modifier" and you even quoted it

 

[WItoTX]

If you street drive only, whatever the manual calls for. If you track it, something better.

 

[2morrow]

Hey everyone! Going to be changing out the trans fluid soon, swapping the stock stuff with some Redline D4 and I figured I’d to the diff while I’m at it. What have you all used for it? I’m seeing Redline 75W-85 GL5, not sure if that needs friction modifier added to it.

I use the same thing. No additives needed and works great!

 

[RRMach1]

I literally wrote "it already contains friction modifier" and you even quoted it

You did say that, I'm sorry I've been sick and I just glossed over it. Thank you!

 

[RRMach1]

I use the same thing. No additives needed and works great!

I think that's what I'll go with then, since I'm going Redline in the trans as well. Thank you!

 

[86pagt]

I used the BG kit from OP Mustang. No issues and super fast shipping.

 

[ice445]

I use the valvoline 75w90 squeeze pouches, they work great. The redline works great too.

 

[RRMach1]

I use the valvoline 75w90 squeeze pouches, they work great. The redline works great too.

Do you use any friction modifier with that? I’ve read mixed things on using friction modifier with aftermarket fluids.

 

[traxiii]

Do you use any friction modifier with that? I’ve read mixed things on using friction modifier with aftermarket fluids.

I've found its very hard to find diff fluid without friction modifier. The Detroit Truetrac in my F150 Prerunner calls for fluid without the modifier. Redline makes some, but its not always easy to find and like I said, most other brands have it already included.

 

[ice445]

Do you use any friction modifier with that? I’ve read mixed things on using friction modifier with aftermarket fluids.

Originally I used half the recommended XL-3 modifier with the redline 75W85, but it ended up being a little too slippery and caused some oddness at low speeds. The Valvoline comes with its own modifier and I just left it alone and it's been 100% perfect.

I found out later Redline makes two versions of the 75W85, so either get the one with their own modifier, or get the non modified version and add 3oz of the Motorcraft XL-3.

 

[Optimum Performance]

I've found its very hard to find diff fluid without friction modifier. The Detroit Truetrac in my F150 Prerunner calls for fluid without the modifier. Redline makes some, but its not always easy to find and like I said, most other brands have it already included.

We offer our BG Kits with and without. Track Customers with the Torsen use the non additive because like your Truetrac, it makes the differential work better.

 

[webspoke]

I use redline and use 1qt of 58304 75w90 no-slip (no modifiers) and top off with 50104 75w85GL5 with modifier. You could go straight 75w90NS also.

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