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.

2027 heavy-duty engines are still a couple of years away. But the American Petroleum Institution is already hard at work on the next generation of oils that will lubricate them. New EPA 2027 emissions ...

The American Petroleum Institute (API) released the FA-4 engine oil specification nearly four years ago. While lubricant manufacturers stand behind the benefits of FA-4, slower OEM adoption and ...

Shell Lubricants has introduced a new portfolio of Shell Rotella heavy-duty diesel engine oils. New Shell ROTELLA T4 Triple Protection 15W-40 and 10W-30 along with Shell ROTELLA T5 Synthetic Blend 10W ...

The oil in your vehicle’s engine is pretty incredible. Its job is to protect every square inch inside your engine where there is metal-to-metal contact – your piston rings, cylinder walls, valves, ...

Some folks impacted by the L87 engine recall should now be running an updated oil spec, which has us wondering - how's your unreplaced L87 engine doing so far?

ExxonMobil introduced three Mobil Delvac 1 synthetic heavy-duty diesel engine oils for use in on-highway and off-highway applications, with the expectation that the oils’ promised improvements in fuel ...

Chevron Products Co. has announced its API CJ-4 and API CI-4 Plus heavy-duty diesel engine oils now meet the new Caterpillar ECF-2 specification Chevron Products Co. has announced its API CJ-4 and API ...

The best synthetic oils offer more mileage, keep the engine cleaner, perform equally well in low and high temperatures, and protect your engine by keeping wear at bay. When it comes to the topic of ...

The GM L87 engine recall that has affected almost 600,000 full-size trucks and SUVs in the U.S. and has led to multiple ...

Several GM truck models were recalled due to engine issues, something that users say might have ben a result of the use of ...