Black plate (9,1)Cadillac STS Owner Manual - 2011Recommended Fluids andLubricantsFluids and lubricants identified below by name, partnumber, or specification can be obtained from yourdealer.Usage Fluid/LubricantEngine OilThe engine requires engine oilapproved to the dexos™ specification.Oils meeting this specification canbe identified with the dexos™certification mark. Look for and useonly an engine oil that displays thedexos™ certification mark of theproper viscosity grade. See EngineOil on page 6‑16.Engine CoolingSystem50/50 mixture of clean, drinkablewater and use only DEX-COOLCoolant. See Engine Coolant onpage 6‑25.Usage Fluid/LubricantHydraulic BrakeSystemDOT 3 Hydraulic Brake Fluid(GM Part No. U.S. 12377967, inCanada 89021320).WindshieldWasher Optikleen ® Washer Solvent.Parking BrakeCable GuidesChassis Lubricant (GM Part No.U.S. 12377985, in Canada 88901242)or lubricant meeting requirements ofNLGI #2, Category LB or GC-LB.Power SteeringSystemGM Power Steering Fluid(GM Part No. U.S. 89021184, inCanada 89021186).AutomaticTransmissionDEXRON ® -VI Automatic TransmissionFluid.Key LockCylindersMulti-Purpose Lubricant, Superlube(GM Part No. U.S. 12346241, inCanada 10953474).7-9