Impreza GT F4-2.5L Turbo (2009)
Engine Oil: Fluid Type Specifications
Engine Oil
Type/Grade .............................................................................................................................. ILSAC GF-4 or API classification SM "Energy Conserving"
Viscosity:
Above -20° C (0° F) .................................................................................................................................................................... 10W-30, 10W-40, 10W-50
Below -40° C (100° F) ..................................................................................................................................................................... 5W-30 (Recommended)