While everybody knows what the oil pump's job is and why it's there, few enthusiasts consider the lowly bubbler as a possible engine tuning resource. We've come to appreciate that it takes power to ...

When you take your vehicle in for an oil change — or change you oil yourself if you're so inclined — you probably don't give much thought to what's in the fluid being drained. It might not occur to ...

Is there a way to have your engine oil tested to see how it is holding up or if it's right for your engine? I have the cheapest company stock put in, but sometimes I notice that certain oil is more ...

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, ...

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

We may receive a commission on purchases made from links. Turbocharged engines are nothing new — the systems have been around since the late 1800s, first applied to airplane engines and eventually to ...