Cylinder Performance-Compression Ratio and Mechanical Octane-Number Effects

Air Pollution Control: Equity Considerations for Rural and Urban America

“…Industry cost estimates fail to adjust for performance loss and indicate a 5 to 30 percent reduction in fuel economy. The estimates of Heron and Felt [2] are used in this study, which give fuel economy losses of 7.8 percent for regular gasoline cars and 13.3 percent for premium gasoline cars. Weighting these two figures by 32 percent premium gasoline cars and 68 percent regular gasoline cars (the approximate current car population mix), the fuel economy loss becomes 9.6 percent, which implies a power loss of 6.4 percent.…”

“…A related issue concerns the basic assumption that the cost of controlling air pollution is less than the cost of allowing it to occur. The total projected cost of controlling air pollution via nond i sc riminatory application of controls, $10.1 billion to $10.3 billion, is composed of the following components: (1) government expenditures--$454.5 million [11], (2) industrial expenditures (high and low estimates)--$942.2 million and $765.8 million [11], and (3) consumer motor vehicle expenditures--$8 .9 billion. The motor vehicle component of the total cost is based on Table 1 and a pro jected 120 million automobile equivalents in 1974.…”