Amazon Basics' affordable motor oil was a hit, but it's been out of stock for what seems like forever, leading some to ask ...

It doesn't matter if you have a hybrid or conventional gas-powered car, a good motor oil can make the difference between a long-lasting engine and a sputtery ride. Here's what you should look for ...

The best synthetic oil products last longer, keep engines cleaner, perform well in all temperatures, and protect your engine.

Ever wondered why there's a price difference between conventional and synthetic oil? Let's take a look at why they're different and which you should use.

Keep your diesel engine in peak condition by using top quality diesel oil. Here are the most popular brands of diesel oil ranked from worst to best.

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 ...

Gilbert’s Garage takes a look back at John’s favorite motor oil brands from the last 50 years —That’s half a century!

Some brands also include additives to enhance certain properties of the oil, like those that make long-lifespan synthetic motor oil instead of conventional oil.

Costco sells house-brand motor oil under the Kirkland Signature label it uses for many other products. Does this oil pass the same tests other motor oils do?

But while base oil is typically derived from crude, the company said it now will use only base oil made from natural gas at Pearl for its premium motor oil brands.

Royal Dutch Shell, which owns Pennzoil, Quaker State and other brands, is announcing Friday that it has already started selling a premium motor oil that is derived from natural gas and not crude.