synthetic oil question

[netfreak]

Silly question perhaps, but do I need to drain out my oil before I start using synthetic oil or can I just add it to what I have already? (I'm running a bit low too)

[TeKKnoTeKK]

Well of course you can just add it, but to do synthetic I would do an oil change, especially considering it's not synthetic in there now. I did hear however that with the components the synthetic have they will cause the regular oil to break down (dunno if that is true). So IMO I would take out the old oil, might as well.

[89LXi]

Synthetic and conventional motor oil are OK to mix. And the synthetic will not cause the regular motor oil to break down faster.

[netfreak]

Hmm ok thanks. Even if it did something with the other oil, there isn't much in there anyways. Well I better go pick up some oil then :D