难!!!
换机油就是DIY好.省钱不是主要的,而是通过换油及时掌握车况.说实在的,做生意的和帮忙的人的心态是完全不一样的.对于车行来讲,换机油挣不了几个钱.
算一笔帐:
materials cost: 4L engine oil 10 bucks, filter 3-4bucks. so cost totally 14 bucks.
labor: 20 minutes, costs 10 bucks
totally costs 24 bucks
oil change charge is 25 bucks. so the garage earns only 1 buck each work. What can you expect?
SO DIY !