OTC/Mail 75W90

[UNC201]

Going to drop the rear diff on gasket swaps/ Current fill is Severe Gear 75W90.

Whaddya guys say. M1 at the counter for $13 or should I just prime order Liquid Moly on Amazon for $24.
I used LM in another car eons ago and it was nice

 

[skyactiv]

I once had a WRX, bought new and sold with 136K on it. I changed the rear differential fluid once on it putting in Valvoline Synpower synthetic 75W90.
I did a stage 2 tune at 60K when the warranty expired and ran a 13.6 1/4 mile. The tiny rear ring & pinion held up fine.
It was a limited slip rear diff, I don't know what type it was.

I'd just go to Autozone and get Valvoline or use Mobil 1.

 

[Kira]

Yo, OP, What kinda vehicle? We're not mind readers. (hope that wasn't too harsh)