Diff oil service
 

Hi Guys,

My Australian delivered 86GTS requires a diff oil change at 45,000km. The manual gives us two options:

"Toyota Genuine Differential Gear Oil LT" or
"Other LSD gear oil that meets API GL-5 and SAE 75W-85".

Do you think I should put the Toyota stuff in or if not, what is a good alternative?

No complaints with how the diff is working with the factory fill, just looking for alternatives from those who may have some experience.

Subsonic.

Chose whatever gear oil you want. Or what ever your wallet says.
I for one used mobile 1 gear oil, just because it's available at any auto parts store and it's cheap compared to oem gear oil and saves me a 30 minute drive to the dealership.

And if you don't like it, it's simple to drain and fill with whatever oil you chose.

Use any equivalent. I used Castrol in mine. It's right as rain. Zero noise and the Torsen bites like new.


Avoid using the combo GL-4/GL-5 stuff.

mmm, why do you say that ? I've been using Gear 300 for years, seems fine I think.

Dealership oil and service are very expensive.
The only reason i keep going back , is to keep my 6 year warranty.

Additives in dual rated lubes are "good enough" to provide GL-5-ish protection without corroding soft metal, but not as good as an actual GL-5 lube.

I suggest that, unless one is concerned about minimizing inventory, there's no reason to choose in-between stuff over the good stuff. Use GL-4 in the transmission, GL-5 in the diff, and call it a day.

Penrite Pro Gear GL-5 75W-85 in mine

So far no kittens, or gears have been killed.

$25 Ltr at Stupercheap

^ Sweet, Penrite ProGear looks a good oil that matches the Toyota LX spec - full synth too ;)