怎麼知道便省油? 你有故意去測跑幾 mile?

我的車子會估算我的油耗～～

cool! btw, can u show me how to change the oil next time? thx la~~

hmm, I will let u know next time.

but basically, it's just open the drain to let old oil out and change oil filter. Then pour new oil into your car. That's all.

I think it's better to see in live XD

My car is not civic......