In May of 2011, we ran a story about a small company seeking backers for an innovative do-it-yourself device engineered to measure the level of contaminants in a vehicle's motor oil. Armed with ...

Such competition, of course, inspires questions of whether O'Reilly's in-house motor oil is any good ... marks from most ...

While there are other nuances to motor oil classifications that need to be understood before changing or topping off the oil in your car's engine, one of the first things to address is the ...

For those who aren't avid automotive enthusiasts, a vehicle's engine probably isn't at the forefront of your mind too often. You slip into the driver's seat, start the car and head to your ...