how much transmission fluid do i use for a 1998 honda passport

Hello, The quantity depends on if the transmission and torque converter were drained, if the transmission filter was removed and replaced, or if the transmission pan was just drained and refilled. A good rule of thumb is to buy a little more than you got out, just in case. However, the parts counter where you purchase your new transmission fluid will have the fill specifications on hand. Be certain not to over or under fill the transmission, as both have negative consequences.