jamesa ... 12/17/2012
2007 Cadillac DTS Base 8 Cyl 4.6L
Is it better to change transmission oil AND filter or just drain the oil and add fresh oil??
2007 Cadillac DTS Performance engine - I hear changing the filter in this car requires the removal of the tranny - Right?
Better to change both the fluid and filter (if equipped). The 4T80E transmission has two filter screens that are serviceable - inside the oil pan. These are removed and cleaned during the trans service. No need to remove the entire transmission for the fluid service.