Starting January 1, 2027, new heavy-duty diesel engines will hit the road. And when engines change, oil has to change with ...

While fresh oil is generally transparent and amber colored, black oil may mean it's time for a replacement and frothy oil can ...

Semi-synthetic motor oils use a combination of mineral and man-made oil, while synthetic blends tend to have fewer impurities ...

Hi Sajeev, I’m sure this has been asked many times, but I was thinking about oil viscosity recommendations vs. what’s really ...

Quick-lube oil changes use $3 filters without anti-drainback valves, causing dry starts that grind metal and destroy engines ...

Drivers tend to assume that if the oil was changed “recently,” the engine is safe, but the real story is what happened during ...

The API is aiming for a 2027 rollout of the new engine oil spec, which is meant to enhance performance standards.

January 1, 2027, will be the first license date for two new heavy-duty engine oil categories, if all goes as planned.

API PC-12 engine oil categories CL-4 and FB-4 are advancing toward a 2027 launch. Here’s what the changes mean for fleets, ...

Your engine’s oil pressure is one of those things that needs to be just right. If it’s too high or too low, it can be indicative of other problems. This is especially true with high oil pressure, as ...