Boxer engines are popular engines used in Subaru and Porsche cars, such as the Subaru WRX STi and Porsche 911 GT3. The engines have cylinders that lay flat (not to be confused with a 180 degree V ...

Cars with internal combustion engines — as opposed to electric vehicles, which still depend on a few fluids themselves — require various fluids to keep everything running smoothly. If you've been ...