【单选题】Car Maintenance Once it was considered good practice to let the car engine idle a minute or two following cold starts. Today with modern technology, the opposite is true. An engine operating under roa...
B.
Idling just burns gas(on average, about a gallon an hour)
C.
They commonly are harmful to other parts of the car
D.
They generate more rolling resistance than conventional tires
E.
Parking in areas of less or no sunlight helps prevent the gas from steaming that would occur if you parked in the hot sun
F.
The difference between winter and summer tire pressures can be as much as eight pounds