regular oil or synthetic oil

这两种oil差别到底大不大。上次换了synthetic花了90刀，最近又要去oil change了，想能不能用regular的，只要30刀不到

所有跟帖： 

• 最好按说明书上换！ -than- ♂ (101 bytes) () 07/15/2014 postreply 05:35:48

• Synthetic大概多久换一次呢 -我是红领巾- ♂ (33 bytes) () 07/15/2014 postreply 11:55:49

• 七到八干英里或一年换一次！ -than- ♂ (0 bytes) () 07/15/2014 postreply 13:46:10

• If I were you I wouldn't even change oil -MoonRiverMe- ♂ (0 bytes) () 07/15/2014 postreply 05:53:06

• 你这种出口就伤人的，大概没有什么人敢跟帖 -ecolio157h7- ♂ (219 bytes) () 07/16/2014 postreply 13:12:14