合成油长期换vs普通油短期换(假设都按recommended mileage)，哪个对引擎好？

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• if you are in a warm area, and the engine was designed to use di -老生长谈- ♂ (362 bytes) () 03/04/2015 postreply 09:43:38

• 个人倾向于合成机油，看坛里很多人车开的不多，一年一换多省事！ -than- ♂ (0 bytes) () 03/04/2015 postreply 17:49:14

• 答案完全取决于对下面这个问题的回答：家里的树上，长不长 -原野青蛙- ♀ (495 bytes) () 03/04/2015 postreply 22:38:26