Dexos-1 Motor Oil from Kendall
Dexos-1 is GM's specification for its vehicles' standard motor oil performance standards, a significant improvement over GF-4 and GF-5 grade motor oils. This oil is generally recommended for GM vehicles manufactured after 2011 but, in most situations, will be applicable for use in all modern GM vehicles.
Following extended periods of use, engine lubricants are subject to thickening, a phenomenon that causes increased wear on engine components. Dexos-1 Motor Oils are designed to perform better and be more resistant to oxidation and oil breakdown. Additionally, oils meeting the Dexos1 specification are designed to resist deposit formation on pistons, allowing for full compression to occur. This can increase fuel economy while decreasing emissions.
Superlative testing not normally conducted on engine oils is the defining characteristic of Dexos-1 motor oils. They are tested for greater resistance to viscosity changes in various temperatures and are shown to have greater low-temperature pumpability than most oils meeting previous specs.
Additionally, Dexos engine oils undergo extensive volatility testing. Essentially, these oils are formulated to resist being consumed during use. This performance characteristic leads to extended drain intervals and less subsequent wear on engine components. Make certain your GM vehicle has the only oil it will ever need.