- has improved viscometric properties, creating less friction in the engine which contributes to improved fuel economy.
- resists aeration, which enables fuel-saving devices, such as Variable Valve Timing, to work optimally
- offers improved oxidation and deposit-forming tendencies allowing emission systems to operate longer and optimally
- resists degradation between oil changes, extending the time and mileage interval between oil changes DEXOS1....oddly enough mentions VVT in thier blurp