2013 Chevrolet Spark Owner Manual - Page 212

9-32 Driving and Operating might have to step on the accelerator pedal to maintain the vehicle speed. When going downhill, you might have to brake or shift to a lower gear to maintain the vehicle speed. When the brakes are applied, cruise control is disengaged. Ending Cruise Control There are four ways to end cruise control: . Fuel Use of the recommended fuel is an important part of the proper maintenance of this vehicle. To help keep the engine clean and maintain optimum vehicle performance, we recommend the use of gasoline advertised as TOP TIER Detergent Gasoline. Look for the TOP TIER label on the fuel pump to ensure gasoline meets enhanced detergency standards developed by auto companies. A list of marketers providing TOP TIER Detergent Gasoline can be found at www.toptiergas.com. TOP TIER gasoline is only available in the U.S. and Canada. Step lightly on the brake pedal (manual and automatic transmissions). Press the clutch pedal to the floor (manual transmissions). Press Recommended Fuel Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service. . . . [ on the steering wheel. To turn off the cruise control, press I on the steering wheel. Erasing Speed Memory The cruise control set speed is erased from memory by pressing I or if the ignition is turned off.