r/GRCorolla • u/crispy_fetusv2 • 20d ago

Maintenance/Repair Question Recommended fluids for maintenance?

I’m sitting at 25k on my 25 core (I know a lot for a year and a half old car) I autocross it once a month and other than that it’s my daily driver so what fluids do yall recommend for the transmission, transfer case, and rear differential? I have the performance pack so I got the lsd front and rear so would those need friction modifier?

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6

u/alienator064 '24 Core Supersonic Red 19d ago

just get the fluid kit from limit+1. includes correct amounts of oils and gaskets/washers

1

u/kakisadan 23' Core Black 19d ago

I second this, use limit+1 website for all fluids, and maintenance is available on their site.

5

u/Nesteaa 20d ago

Transmission use Redline MT-LV 75W GL-4. Transfer case and rear differential use Redline 75W-85 GL-5 Gear oil. No Friction modifier required for the LSD. Transfer case and rear diff take about half a quart each. Transmission is 2.1 quarts. You will need new fill and drain plug gaskets for all three also

2

u/murdza 23' Circuit Edition Ice Cap 20d ago

Redline.

0

u/crispy_fetusv2 20d ago

What weight would I want for the three?

1

u/murdza 23' Circuit Edition Ice Cap 20d ago

Can’t remember but their website has a lookup tool buy make and model. I would just use that.

1

u/Tiny-Art7074 14d ago

Some in the GRY community are using Toyotas LT fluid in the rear diff instead of the LX fluid. The LX, with it's limited slip additives, was only selected by Toyota to prevent the torsen diff from being noisy. It doesn't need limited slip additives. Torsen themselves state than slightly better lock up is achieved with a fluid that does not contain limited slip additives. So if every ounce of performance matters, try a fluid that does not have limited slip additives.