Last week we explained the basics of motor oil, from viscosity to additives and everything in between. Now it’s time to tackle a much more contentious issue: synthetic versus conventional.

At under $25 for a five-quart bottle and with over 25,000 ratings, AmazonBasics oil has 4.8 stars on ... bonus to users of its specialty motor oils, including synthetic, if their vehicle goes ...

If your mechanic recommends a high-mileage motor oil, how do you know when it's worth it to upgrade? And what are the pros ...

Changing your own motor oil isn't that hard, and it can save you a lot of money, but it's important to know which kind of oil ...

These days, many automakers recommend that owners fill their cars' engines with synthetic oil instead of conventional oil. Using synthetic motor oil may allow you to go longer in between oil ...