2011 Chevrolet Impala Owner's Manual - Page 26

1-20 In Brief Engine Oil Life System The engine oil life system calculates engine oil life based on vehicle use and displays a DIC message when it is necessary to change the engine oil and filter. The oil life system should be reset to 100% only following an oil change. Resetting the Oil Life System 1. Display OIL LIFE REMAINING on the DIC. 2. Press and hold the SET/RESET button on the DIC for more than five seconds. The oil life will change to 100%. See Engine Oil Life System on page 10‑11. Fuel E85 (85% Ethanol) Vehicles that have a FlexFuel badge and a yellow fuel cap can use either unleaded gasoline or ethanol fuel containing up to 85% ethanol (E85). See Fuel E85 (85% Ethanol) on page 9‑38. For all other vehicles, use only the unleaded gasoline described under Recommended Fuel on page 9‑35. . Avoid idling the engine for long periods of time. When road and weather conditions are appropriate, use cruise control. Always follow posted speed limits or drive more slowly when conditions require. Keep vehicle tires properly inflated. Combine several trips into a single trip. Replace the vehicle's tires with the same TPC Spec number molded into the tire's sidewall near the size. Follow recommended scheduled maintenance. . . . Driving for Better Fuel Economy Driving habits can affect fuel mileage. Here are some driving tips to get the best fuel economy possible. . . . . Avoid fast starts and accelerate smoothly. Brake gradually and avoid abrupt stops. .