原帖由 老杨 于 2007-8-8 07:34 发表 2 [3 G/ H/ g* S7 W/ W7 U/ M
1、省油 ) D' ^$ Q! P( l- s
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 ...
! n7 O6 F! o( a/ a7 Q/ R # ~9 d$ z& ^' ?, a5 DYou 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.