
You don't need to do anything special before you switch to synthetic oil after having used conventional oil.

Spring and fall constitute “oil-change season” for many, but that schedule is more tradition than a maintenance imperative.

While it's safe to mix synthetic and conventional oil since they're compatible, here's why it's best to avoid it.

Motor oil myths abound. Here are five of the most persistent along with our myth-busting facts.

Natural-gas-based motor oil made using gas-to-liquid (GTL) technology may be interesting, but is it inherently better than other oils? Let's...

Find out everything you need to know about synthetic vs. conventional motor oil.

Industry testing shows that AMSOIL delivers excellent protection for turbo cars, limiting deposits on the turbo bearing and shaft. See...

Conventional motor oil helped doom German soldiers in the Battle of Stalingrad during World War II, intensifying efforts to find...

“Adventurous” is a good word to describe Tiffany Stone. The Jeep enthusiast, motorsports-programming host and model isn’t afraid to push...

The simple answer: No. In fact, there are wide performance differences between base oil group categories. Generally speaking, Group IV...