I used this on a 2009 Chrysler town and country. I pumped until there was no oil left inline, then took off the oil filter. I wanted to make there was no oil left, I Opened the drain plug, not even a drop came out. The negative thing i noticed is that where the pumping handle connects to the container neck, if you loose the handle position while pumping you will loose pressure. I think it is a very good alternative to getting under the car for people who can access easily the oil filter but not the drain plug.