As the title states , is the newest Hyundai SP4-M ATF made from Group III or Group IV (PAO) base stocks ? Trying to better understand the composition to determine if it is truly a better ATF than Maxlife All Vehicle ATF (rated for SP4-M) or the similar Castrol ATF ? ... Or just a highly inflated priced dealership Group III ATF (now at $20 per qrt.) ?