Owner's Manual
Page 81
... kept open : Driving with automatic transmissions should use (D) rive as often as possible and avoid using "kickdown" to free the ignition key. Note that decrease gas mileage are: Worn or dirty spark plugs Incorrect spark plug gap Dirty air cleaner Dirty engine oil and clogged oil filter Dragging brakes Incorrect front end...
... kept open : Driving with automatic transmissions should use (D) rive as often as possible and avoid using "kickdown" to free the ignition key. Note that decrease gas mileage are: Worn or dirty spark plugs Incorrect spark plug gap Dirty air cleaner Dirty engine oil and clogged oil filter Dragging brakes Incorrect front end...