what is dexos oil

Dexos oil is a type of engine oil that meets a special set of requirements set by General Motors (GM) for use in their vehicles. The dexos1 specification was first released in 2010 by GM to consolidate what they believe are the best oils for their engines. Dexos oil is claimed to keep engines cleaner, reduce sludge, improve fuel economy, and help emissions components last longer. The dexos oil specification also provides a global framework that enables GM vehicle owners anywhere in the world to know which oils are best for their engines. It is important to note that using unauthorized dexos engine oil might lower the efficiency of your vehicle.