Well, it would be best to use JWS 3324, but it costs like gold, like 10 times more expensive then Ravenol. Personally I used Ravenol because of the price. Ravenol AW-1 meets all specifications for this gearbox.
If you mean changes with shifting, then no, nothing special. Mine is AM6 third generation, car is 308 T9. I am generally not satisfied with this gearbox, shifting is not smooth. I thought oil change would improve it, but it stayed more of less the same. It might be different with 508.