What makes Chevron base oils more resistant to oxidation?
Chevron base oils contain lower levels of reactive compounds compared to solvent-refined Group I and, in some cases, other Group II base oils. These “impurities,” which include aromatics and sulfur compounds, are much more susceptible to oxidative attack. Once these compounds begin to oxidize, a complex chain of reactions occurs that ultimately causes both the base oil and the additive to degrade. The virtual absence of these “bad actors” means Chevron base oils deliver exceptional resistance to oxidation.
