TRD LSD Oil

[beeker]

I dropped into my local toyota agent and asked what LSD oil should i use for my TRD (Clutch) LSD. They didnt know. They seemed to think there was one LSD oil for both Clutch and Viscious (excuse my spelling).

Is this true ?

Whats the recommend LSD oil for a TRD Clutch pack LSD.

thx in advance.

[TRD Man]

Beeker, we've never been too fussy choosing an oil to use in our rally cars with TRD LSD.
We can supply you with TRD LSD oil but it is expensive - and unnecessary in our view.
We stick to the main brands and make sure that the oil we do use is specified as being suitable for LSD.

Some years ago at a Taupo rally we had a terrible noise coming from the LSD. We thought we'd buggered it. When we got home we discovered that we'd used a regular gearbox oil, drained it and replaced with a Castrol LSD suitable oil and the thing was fine and has been so for 3 seasons since.

FYI - TRD LSD oil is 75W-90 for FWD & 85W-140 for RWD.

cheers
Bruce

[atmosports]

In viscous diffs the viscous part of the different is basically always sealed & the viscous fluid is way different to your common LSD or Non-LSD diff oil & in a viscous diff you can generally get away with an ordinary diff oil, this is generally the same for a gear type LSD as well. A clutch type is a whole different story & will require a dedicated LSD oil which includes friction modifiers & numerous other additives to enhance the life of the friction surfaces.

As above Castrol generally works pretty good, & we've used Kendall,Penrite, Pennzoil, & Motul in numerous cars in various LSD types with no problems.

On a side note it always pays to check the manufacturers recommendations for aftermarket diffs as I know some manufacturers will recommend a single weight or mineral oil only for there product. A multi-weight or synthetic will probably still work but better to go with what they recommend as it's genreally what will prolong the life of the component.

[JT]

I've got a trd clutch pack in my ae86 and I'm running redline 80W-140 lsd oil. Some people have said about redline gear oil eating bearings but haven't had any problems with their lsd stuff. The 'diff shop' in chch specalise in diff's and put redline in all their work.

[atmosports]

Personally I wouldn't recommend Redline for anything other than Water Wetter as from what I've seen their Oils are horrible stuff. Sure they amke more power but at the expense of engine life or g/box life. I've seen he gear/diff oils turn to a thick jelly in many diffs/gearboxs & to be honest you end up throwing away seals/bearings/synchros etc that would otherwise be reusuable. Just my 2c worth but I stay well clear of Redline oils.