AAA conducted primary and secondary research to understand the differences between conventional and synthetic engine oils that are readily available for use in gasoline engines.

 What they discovered is: “On average, synthetic oils outperformed conventional oils in the conducted tests by 47 percent. The selected tests evaluated shear stability, deposit formation, volatility, cold temperature pump-ability, oxidation resistance, and oxidation-induced rheological changes.”*

 This enhanced performance by synthetic oils is surprising in contrast to the fact that: “44 percent of drivers are either not sure if synthetic motor oil is better for their engine, or do not believe synthetic motor oil is better for their engine.”*

Modern automobile engines are usually smaller, operate at higher RPMs, are built to exacting tolerances, and produce far more horsepower and torque per cubic inch than engines of decades past – all while delivering better fuel economy. The automobile engines of today cannot run on just any oil, current design philosophies largely owe their feasibility to engine oils tailored to the demands of advanced engine design. The purpose of this research is to compare the performance of oils marketed as “conventional” versus oils marketed as “full synthetic.”*

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