原帖由 老杨 于 2007-8-8 07:34 发表 , n6 F8 H G/ e: c5 n1、省油 / l, Y! T, i" g- d! v h
平均每个铝合金轮毂比相同尺寸的钢轮毂轻2kg,一台轿车用5个便省了不起10kg重量。根据日本实验,5座的轿车重量每减轻1kg,一年约或节省20L汽油。而美国汽车工程师学会发表的研究报告指出,铝合金轮毂 ...
# a* Z8 y3 |. j, _; s % U2 d. n# v9 W8 @+ J# RYou forgot to distinguish the difference between mounted mass and unmounted mass. The 2kg advantage is much more than it sounds, since it's unmounted mass.