Can you add regular oil to synthetic in a car engine?

Answer by  trehugger (149)

You can add regular oil to synthetic in your car's engine my husband has done it before and he says it is not dangerous and will not hurt the car's engine. They are both oil but one is natural and one is created by artificial means. It's like using artificial sweetener or regular sugar they both do the same thing.

Answer by  Bernie (67)

No, you cant add regulat oil to synthetic in a car engine, because otherwise your engine can exlpode! So dont do it! it's dangerous!