100% synthetic engine oil, "Fuel Economy" developed for recent gasoline engines, turbocharged or naturally aspirated, with direct or indirect injection, engines requiring the use of low friction and low viscosity HTHS lubricants (≥ 2.6 mPa.s). gasoline engines requiring hot viscosities SAE xW-20 and Fuel Economy (API SP-RC, API SP and/or ILSAC GF-6a standards) Approved under the GM-dexos1™ GEN2 standard for all engines requiring this approval: BUICK, CADILLAC, CHEVROLET, GM, GMC, OPEL and VAUXHALL Compatible with catalytic systems This type of oil cannot be used in some engines. If in doubt, always consult the maintenance manual