Motor oil is one of the most important fluids in your vehicle. The purpose of motor oil is to reduce friction and keep a vehicle's engine clean and corrosion-free. Another critical function is to ...

As Americans keep their cars for longer, Kentucky-based Valvoline says one of its synthetic oil products can turn back time ...

Walk into any auto parts store and you're smacked with a wall of brightly colored bottles promising "protection," "performance," and probably enlightenment if you squint hard enough. Somewhere in that ...

As any car owner will tell you, routine maintenance on any automobile can be extensive and, depending on where you go, expensive. Road-ready tires, new filters, fresh coolant, and more need to be ...

I’ve been getting a lot of mail regarding using synthetic motor oil in vehicles. Questions such as: Should I use synthetic oil? Does it work better in some cars than others? Does it cost more? Do I ...

Synthetic engine oil typically costs 2 to 4 times as much as conventional mineral oil, but it is definitely cheaper than an engine or a vehicle. The US military exclusively uses synthetic oil in all ...

A persistent debate around synthetic motor oil is whether it can be used in old cars. In this Engineering Explained video, Jason Fenske clears things up. The video is part of a series sponsored by ...

Modern cars require a lot of different fluids. Most people know about engine oil. However, many people may not realize that engine oil comes in various types, classifications, and consistencies. In ...

Once upon a time, synthetic engine lubricants were considered exotic and used in only the most rarified performance engines. In fact, one of the companies discussed here, AMSOIL, was the first company ...

Q: I have a 1994 Toyota Celica and have always used conventional oil. Should/can I change to synthetic? Can I mix the two? Car Doctor: How to spot a 'flood' car before you buy Car Doctor: Can you give ...

Its pretty amazing when you think about itall those metal parts spinning away furiously but never making contact. Oil makes it all possible. In addition to serving as a buffer against wear, oil also ...

Technically, the first synthetic oils were produced in 1877, which was about a decade before the first patented motor car arrived in 1885. Despite this, the former didn't find its way into the latter ...