An automobile engine is a complex arrangement of moving metal components that require a critical element in order to function: oil. Without the lubrication provided by engine oil, friction, heat, and ...

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

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.

A recent GM safety recall addressing potential manufacturing defects impacting the naturally aspirated 6.2L V8 L87 gasoline engine has lead to confusion among some owners when it comes to the ...