Needed to replace rear differential fluid on a Ford Escape. There is no other way to drain the fluid than cracking or drilling out the differential. It had plenty of suction power to get the job done. Warming up the differential fluid before removing it helps a lot. Also handy for removing excess engine oil when overfilling. Cleaning is a bit fiddly, but worth it. You might not use this often, but it's a time saver when you need it.