Q: Advice on changing the fluid in the differential

Differential fluid on a lot of modern cars has it built in the transmission. For example, for a 2002 Toyota Camry, when you change the transmission fluid you are also改变差分流体。他们共享普通的液体。但是，在差异分开的其他车辆上，通常每50,000-60,000英里更改一次是个好主意。

Because, it does get dirty. It’s not like the automatic transmission where it’s going to change the shifting, but if it does really dirty, then the seals can get bad. They can get dirt on, wear out, and start to leak. And it can also wear the gears a little bit. It’s nowhere near as crucial as changing automatic transmission fluid. But you’d still want to change them every so often. If you want tohave your differential gear fluid inspected，他们会让您知道您是否需要知道您是否需要替换油。