Cadillac 2011 DTS Owner's Manual

Also see for 2011 Cadillac DTS: Navigation manual Specifications Brochure Owner's manual Owner's manual

Black plate (5,1)Cadillac DTS Owner Manual - 2011This vehicle has an airbag system. Before attemptingto do your own service work, see Servicing YourAirbag-Equipped Vehicle on page 2‑68.Keep a record with all parts receipts and list the mileageand the date of any service work performed. SeeMaintenance Record on page 7‑12.Adding Equipment to the Outside ofthe VehicleThings added to the outside of the vehicle can affectthe airflow around it. This can cause wind noise andcan affect fuel economy and windshield washerperformance. Check with your dealer before addingequipment to the outside of the vehicle.FuelUse of the recommended fuel is an important partof the proper maintenance of this vehicle. To helpkeep the engine clean and maintain optimum vehicleperformance, we recommend the use of gasolineadvertised as TOP TIER Detergent Gasoline.Look for the TOP TIER label on the fuel pump to ensuregasoline meets enhanced detergency standardsdeveloped by auto companies. A list of marketersproviding TOP TIER Detergent Gasoline can be foundat www.toptiergas.com.Gasoline OctaneUse premium unleaded gasoline with a postedoctane rating of 91 or higher. You can also useregular unleaded gasoline rated at 87 octane or higher,but the vehicle's acceleration could be slightly reduced,and a slight audible knocking noise, commonly referredto as spark knock, might be heard. If the octane is lessthan 87, you might notice a heavy knocking noisewhen you drive. If this occurs, use a gasoline ratedat 87 octane or higher as soon as possible.6-5