When it comes to maintaining the health and longevity of your vehicle's engine, one of the most critical decisions you can make is selecting the appropriate engine oil grade. Engine oil acts as the ...

The numbers and letters on a bottle of motor oil can look like gibberish if you aren't sure how to decode them. 5W-30, 10W-40, 0W-20... What's this supposed to be telling you? Does the "W" stand for ...

Engine oil and cold weather don't mix well. Here's why viscosity matters, how cold affects oil flow, and how the right oil ...

Demands on heavy-duty diesel engine oils have changed alongside engine technology and fuel formulations. “As engine technology and fuel technology have evolved, the environment in the crankcase has ...

In North America, 15W-40 is the predominant viscosity grade for heavy-duty diesel engine oil. While other options exist, such as 5W-40 and 10W-30, many consumers are reluctant to change from the ...