2013 Buick Regal Owner Manual - Page 360

11-12 Service and Maintenance Recommended Fluids, Lubricants, and Parts Recommended Fluids and Lubricants Usage Engine Oil Fluid/Lubricant Use only engine oil licensed to the dexos1 specfication, or equivalent, of the proper SAE viscosity grade. ACDelco dexos1 Synthetic Blend is recommended. See Engine Oil on page 10‑10. 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant. See Engine Coolant on page 10‑17. DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806, in Canada 88863462). Automotive windshield washer fluid that meets regional freeze protection requirements. DEXRON®-VI Automatic Transmission Fluid. Engine Coolant Hydraulic Brake/Clutch System Windshield Washer Hydraulic Power Steering System Automatic Transmission (2.4L Engine) DEXRON ®-VI Automatic Transmission Fluid. Automatic Transmission (2.0L Engine) Automatic Transmission Fluid (GM Part No. 19256039, in Canada 19256040). Manual Transmission See your dealer.