Changing the fluid every handful of decades will not be my notion of substantial upkeep, and I can't see why theirs would wish much less generally modifications.?? ??? ???? ?? ??? ?? ???? ?? ?? ???? ????. ??? ?? ??? ????? ????? ? ??? ?????, ?? ?? ???? ??? ???? ?? ???? ?? ????? ?? ??? ????.A CVT automobile will likely be, on stability, much more gas