旧车上了60发抖倒是挺常见的，我以前那个旧车就是，几个同学的老车都有这问题，所以永远不会freeway超速，而且总开慢道，别人超车我也不生气，养成了好脾气

这个汽油味你倒是要注意呢，老车漏机油漏transimission的比较常见，那个一般没有什么味道，如果车很旧不想花钱修，勤检查勤加保持那些油的level够也还行--transmission要在发动起来以后检查的，没有大问题，汽油味就不好说了，对了，你的油箱盖子查查密封性是不是不够了，要不干脆换一个。我们一个6年的车，最近作smog检查，就说油箱盖子不够密封，给换了，我们倒是没有闻到过味道

谢谢楼上2位

对了我还有一个问题就是方向盘手放掉以后开的不直呢

去SEAR矫正过一次说是好了可是开起来还是老样子

其实车也不算太老，99年的

买的时候开了5 W麦

7K刀

dollhouse is right, 4-wheel aligment is the right way, no matter if it is turning to the left or shakes after high speed. (Shaking while parking is a different case, that is a need for spark plug replacement, or maybe wires too.)

you said you have done the aligment, then you must have the aligment paper they give to you, what does that say? all the numbers arent suppose to be too off. Usually after the aligment, car should go stright w/o holding the wheel. Unless the car had been in a serious accident where mech had to "bend" the frame back to "normal", which isnt normal.

also, check left and right tires worn out tracks. if they arent even but still kind of new, maybe just rotate them too, so they can have a even worn out, then replace the tires when time comes, then do the 4wheel aligment

About the gas leak, hard to say, i am not so sure. Try to find where the smell come from la? can you? yaosen is prob right. But get a free estmate from few shops are something i would do if you cannt find where the smell come from.

aligment，还轮胎

我们的车一个毛病

换了轮胎，开起来跟新的似的