2011 Chevrolet Volt Owner's Manual - Page 359

Driving and Operating The following are the minimum requirements for circuits used to charge this vehicle: . . 9-57 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. 120V/15Amp 240V/20Amp Charging equipment with a rating of at least 240V/20Amp will provide the fastest charging time to recharge the high voltage battery. 240V/40Amp circuits provide flexibility for future vehicle charging needs. Contact your dealer for more information. Do not use non‐grounded electrical plug adapters. Notice: Do not use portable or stationary backup generating equipment to charge the vehicle. This may cause damage to the vehicle's charging system. Only charge the vehicle from utility supplied power. Use premium unleaded gasoline with a posted octane rating of 91 or higher. If the octane is less than 91, you could damage the engine. If heavy knocking is heard when using gasoline rated at 91 octane or higher, the engine needs service.