8-2 Driving and OperatingFuelFuel . . . . . . . . . . . . . . . . . . . . . . . . . 8-49Recommended Fuel . . . . . . . . . 8-49Gasoline Specifications . . . . . . 8-50California FuelRequirements . . . . . . . . . . . . . . 8-50Fuels in Foreign Countries . . . 8-50Fuel Additives . . . . . . . . . . . . . . . 8-50Filling the Tank . . . . . . . . . . . . . . 8-52Filling a Portable FuelContainer . . . . . . . . . . . . . . . . . . . 8-53TowingGeneral TowingInformation . . . . . . . . . . . . . . . . . 8-54Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . 8-54Trailer Towing(Except CTS-V) . . . . . . . . . . . . 8-58Trailer Towing (CTS-V) . . . . . . 8-59Towing Equipment . . . . . . . . . . . 8-59Conversions and Add-OnsAdd-On ElectricalEquipment . . . . . . . . . . . . . . . . . 8-60Driving InformationDriving for Better FuelEconomyDriving habits can affect fuelmileage. Here are some driving tipsto get the best fuel economypossible.. Avoid fast starts and acceleratesmoothly.. Brake gradually and avoidabrupt stops.. Avoid idling the engine for longperiods of time.. When road and weatherconditions are appropriate, usecruise control, if equipped.. Always follow posted speedlimits or drive more slowly whenconditions require.. Keep vehicle tires properlyinflated.. Combine several trips into asingle trip.. Replace the vehicle's tires withthe same TPC Spec numbermolded into the tire's sidewallnear the size.. Follow recommended scheduledmaintenance.