Engine oil turns black from a combination of combustion byproducts, heat oxidation, and detergent additives suspending carbon ...

Valvoline's Premium Blue One Solution Gen 2 aims to increase oil drain interviews on Cummins X15 engines by 25,000 miles.

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 ...

This paper explains the mechanisms that affect lubricating oil consumption in stationary gas engines. It explains the positive and negative consequences of oil consumption. It discusses the importance ...

Engine oil is so important to the operation of pickup trucks that it can be likened to blood in humans' veins. Without oil, engine parts gall and seize up. Use oil for too long and the necessary ...

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

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.

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.

The oil in your engine can evaporate, but only under very specific — and extreme — operating conditions. These conditions occur when your engine is operating at very high temperatures, which can ...

BMW’s N63 V8 landed in 2008 with a lot to prove. This 4.4-liter twin-turbo brought the brand’s first “hot-V” layout, tucking ...