Have you ever woken up in the middle of the night worried that you have never, ever changed the oil on your two-stroke lawnmower? Well, you can relax. A two-stroke oil change is like a left-handed ...

Engine oil color reveals its age, contamination level, and operating condition. Fresh oil is amber or light brown. Oil darkened to black but still translucent after a few thousand miles is normal.

You probably already know that your car relies on various different fluids to help it run smoothly. Two of the most well-known and recognizable of those fluids are engine oil and fuel, which, in many ...

Diesel and gasoline engines might look alike under the hood, but they use oil in very different ways. Gas engines run cleaner, but diesels create much more soot, crank out higher compression forces, ...

The American Petroleum Institute (API) is finalizing PC-12 engine oil specs for 2027. Learn about CL-4 and FB-4 licensing ...

A mechanic cracked open a neglected engine and what he found was brutal.

A recent GM safety recall addressing potential manufacturing defects impacting the naturally aspirated 6.2L V8 L87 gasoline engine dictates that certain engines should now use 0W-40 oil, rather than ...

The new heavy-duty engine oil category, PC-12, is nearing the finish line. Here’s what fleet maintenance managers should know before it arrives in 2027.