Modern vehicles rely on a host of fluids to send us down the road. Some, like engine oil and coolant, are well-known, while others, like differential fluid, are less-familiar to average motorists.

Manuals are a dying breed in the modern car market. Especially in North America, most of the cars that are sold have an automatic transmission, but we're not here to talk about manuals vs. automatics.

Hydraulic oil ranks high among fluids with multi-function capability. True, for sheer utility, it can’t match olive oil, which through the centuries has been used as food, lubricant, fuel, medicine, ...

One wrong bottle of brake fluid can silently destroy everything downstream.

The process works because liquids are incompressible, and the density remains almost unchanged even during pressure and temperature rises. However, the fluid must retain its properties at all ...