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

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

Home mechanics have been pouring vegetable oil into engines for years, sometimes in the fuel tank, sometimes straight into ...

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

Curious to see the damage caused by running on low oil? This teardown of a blown BMW B48 engine shows what goes wrong and the ...

The basics of an automobile engine require lubrication. This means the role of the oiling system is critical to performance and especially critical for high-performance applications. To help you keep ...

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, ...

GM Authority poll shows owners overwhelmingly want thicker 5W-30 or 0W-40 oil for next-gen V8s, citing durability over thin ...

Checking your engine oil level is a quick, easy task that’s a crucial part of car maintenance. Keeping the right amount of oil in your engine will increase its longevity regardless of age, cylinder ...

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

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Oxidation, fuel dilution, copper, lead, potassium, aluminum, iron and so much more. Used engine oil analysis not only reveals elements and conditions that can help fleets maximize oil life, it also ...