It's one of the best motor oil brands out there, especially in the budget category. Maybe skip Super Tech's oil filters, though — they ranked poorly in SlashGear's look at the best oil filters.

While not as popular as other brands outside the U.S., Amsoil synthetic motor oil products cater to the automotive, power sports, industrial, and racing sectors. Since Amsoil motor oil is less ...

But there are other notations worth paying attention to on the labels of even the best motor oil brands, and the letters "HD" rank among the most important. Those letters can often be found alongside ...

Learn what gear oil is, how it differs from transmission fluid, and why using the right lubricant is crucial for your vehicle ...