- Joined
- Jul 24, 2020
- Messages
- 15
Hello all. I have a question about correct differential oil for my 2021 Genesis G70 Prestige with a rear differential which is LSD. Per the maintenance schedule, at 36k miles or so I changed the factory rear differential oil. I tried from 3 places to get the OEM fluid but each said they don't have it. I ended up putting Valvoline 75W90 with LSD modifiers in the diff. I immediately noticed chattering when cornering and the oil was cold. Drove the car for about 200 miles or so and couldn't take the chattering anymore and ended up adding CRC Trans-X LSD oil additive to rear diff. After I added this the chattering went away immediately. Is the Valvoline just not that good? Any other differential fluids with LSD modifiers you would recommend so I don't have to add additional LSD modifiers? Thanks