Show Operating Costs Lower on Average Automobile The cost of operating an on average automobile has declined 3 34 cents a amile amile mile or per cent since 1021 1924 Greater fuel and lubrication economy as well as longer life Ufe of present cars and Improved highways as account for forthe forthe the reduced cost The Items Involved In the cost are gasoline oil tires and tubes maintenance depreciation li license ii 11 tense cense garage Insurance and Interest F F. F A. A lower Bower an automotive engineer credits three engineering contributions oil oil filters air all cleaners and crankcase crank crank- case ventilation with ventilation with reducing COltof cost COlt of operation more than a cent a mile These devices have bave decreased used the ne ne- necessity for bearing adjustments adjustment and have reduced wear on rings and pta pU- tons tans and materially lessened less oil oU con I |