Advanced Automotive Technology: Visions of a Super-Efficient Family Car

TABLE 3-7: Retail Price Effects for Friction Reduction

Components in Four-Valve Engines

Roller cams

Lightweight

valve/springs

Pistons

Piston coatings

Total

4-cylinder

$17.20

31.20

10.20

6.70

$65.30

6-cylinder 8-cylinder

$24.20 $31.20

45.20 59.20

13.70 17.20

8.45 10.20

$91.55 $117.80

SOURCE: Energy and Environmental Analysis, Inc., “Automotive Technologies To
Improve Fuel Economy to 2015,” prepared for the Office of Technology Assessment, June
1995.