IF IT SAYS POWER STR FLUID ,THAT IS WHAT YOU ARE SUPPOSSED TO USE , IF IT SAYS AUTOMATIC TRANS FLUID THEN THAT IS IT, THE DIFF, IS IN THE SEAL MAKE UP OF THE STEERING BOX, THE WRONG FLUID AND IT WILL START TO LEAK , SOMETHING TO DO WITH THE THERMAL ADDITIVE IN THE PWR STR FLUID THAT THE DEXRON, DOESN,T HAVE , ODDLY THE HONDA PWR STR FLUID AND THE ISUZU FLUID ARE COMPLETEY INTERCHANGABLE, CERTAIN YEARS SINCE 88 SOME ISUZU,S HAD ONE FLUID AND SOME HAD THE OTHER THAT IS WHY IT IS PRINTED ON THE CAP AS TO THE DIFFERENCE JERRY