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.

There's no question that cars are getting more reliable and maintenance-free. You no longer have to clean carburetors, adjust timing, or perform frequent engine tune-ups the way older cars required.

Everybody makes a big deal about regular engine oil changes, and with good reason. Just like any other part of a vehicle, oil wears down during constant use and needs to be replaced to ensure your ...

Replacing your transmission fluid can be relatively inexpensive, depending on your vehicle type and whether you do it yourself or have it done by a professional. For manual transmissions, you can get ...