Dexos oil is motor oil that is licensed by General Motors to carry the dexos specification. The dexos specification is awarded to oils that have passed a number of tests conducted by GM and that have paid for the dexos license.
What is dexos oil? And why do I have to use it in my vehicle? Although it’s been six years since General Motors transitioned to its dexos oil specifications, there’s enough confusion and misinformation that we regularly receive questions from customers concerned about maintaining their vehicle warranties.
What is dexos 1? Approximately every 5 years, a new service category is placed on engine oil. The reason behind this is that auto manufacturers are under constant pressure to reduce emissions, offer better protection against sludge, and increase fuel economy.
Dexos engine oil specification is designed by GM Powertrain engineers and is intended specifically for GM engines. Dexos is designed to increase fuel efficiency, extend the life of the vehicles emissions system, reduce oil changes and extend the life of the vehicle.
And just like GM, dexos ® is global. GM wants to make sure that every GM car anywhere in the world has access to the highest quality oil formulated exclusively for GM engines. GM wants to make sure that every GM car anywhere in the world has access to the highest quality oil formulated exclusively for GM engines.
GM's new oil product, Dexos, consolidates its five prior recommended oil specifications into two blends: Dexos1 for gasoline-powered vehicles and Dexos2 for diesels.
The dexos oil also has some unique properties that General Motors engineers required. One characteristic is better resistance to aeration (the whipping of air bubbles into the oil).
Dexos-approved engine oil is engine oil carrying the Dexos specification created by General Motors designed to inform customers that the oil meets GM specifications. Oil manufacturers must pay to obtain the Dexos license in order to display the Dexos logo.
The dexos™ specification sets a high standard, requiring both improvements in fuel economy and fuel economy retention over the life of the oil while at the same time requiring improvements in oil robustness. It is also designed to perform where GM‟s engine technology requires enhanced performance to operate at its best.
General Motors vehicles built in 2011 and later, required the use of dexos™ licensed engine oil. Many people are thoroughly confused. Is dexos™ a great new oil or just a GM shakedown? What is dexos? Confusing as it may be, dexos™ is not a brand or type of oil at all.