you don't care your car, why do you care the results?

for synthetic oil, it lasts longer and can be stored long time.

yes, you may mix different motor oil. If they are in different weight, you won't get the performance you expected. For old engine, higher weight is ok.

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• 有點意思。其實我很愛惜我的破車，這是為什麽 -專開破車的男人- ♂ (242 bytes) () 06/28/2011 postreply 13:56:32