"some" ABS systems say to NOT use dot 5 fluid because it does something to the accumulator in those systems.
at least up until the 2002 MY, dot 3 was the only fluid to use in minivan ABS systems according to the FSM.

besides, DoT 5 is tOo ExPeNsIvE for the ol' DoC.......................
TiTeWaD that he is............