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Just wondering what's the best diff oils for my 2013 SR 4x4 hilux and also can anyone tell me if it has an A.D.D shift actuator

The best you can get Penrite pro gear.

Perfectly suitable oil


Don't use LSD oil if you have Arb air lockers.
I Use
for transfer, manual & Arb lockers.

What is the issue with lsd oil with arb lockers sorry. Was under the impression it was ok.
thanks

Thanks mate, was looking on the Penrite website for my year model Lux it says for the front diff to use the trans gear 75w-90 if it has an A.D.D shift actuator and to use the 80w-90 of it doesn't have one, got me a bit confused as I'm not sure exactly what that is and if mine has one

dooma wrote:What is the issue with lsd oil with arb lockers sorry. Was under the impression it was ok.
thanks

The story goes, the additive is what affects the seal & causes the leaks.

Rodney8778 wrote:Thanks mate, was looking on the Penrite website for my year model Lux it says for the front diff to use the trans gear 75w-90 if it has an A.D.D shift actuator and to use the 80w-90 of it doesn't have one, got me a bit confused as I'm not sure exactly what that is and if mine has one

Either of those oils will be good.
For the rear, if you want the best get pro gear.

Cheers anth. Reason i asked as i ran ls oil in my troopy air lockers for 15years without issue. Thanks for the heads up. Might look into the penrite.

Contact the customer help dept at penrite by email, very helpful and will give you all the tech stuff you need in simple language, and just have a look at the front of your front diff and see if it has an ADD housing .

Yep, the Penrite 80W-90 is what I use.
The Roo.

fourby4diesel wrote:

dooma wrote:What is the issue with lsd oil with arb lockers sorry. Was under the impression it was ok.
thanks

The story goes, the additive is what affects the seal & causes the leaks.

Wondered the same thing when I read this.
Same as Dooma, been using Castrol LSD diff oil in my ARB locker - 8 years still good.

Rodney8778 wrote:Just wondering what's the best diff oils for my 2013 SR 4x4 hilux and also can anyone tell me if it has an A.D.D shift actuator

SR5 has ADD (automatically disconnecting diff)
SR does not

2014 SR has ADD.

DeadlyBeast wrote:2014 SR has ADD.

Thanks for mentioning that, I was wondering if that box in front of the front diff was ADD as it has it's own breather.

I wouldn't use the trans gear 75/90 in your diff, it's a gearbox oil not a diff oil. Contrary to what the numbers say it is a lot lighter than 80/90 gear oil and the trans gear is not for hypoid type gears. Correct me if I'm wrong.