Natural to Synthetic Oil, any complications? Options

[hurley97]

I've always used natural oil because thats what I assumed the previous owner used. I want to switch to synthetic but I've heard bad things could come from doing so after using natural for so many years.

I can't remember exactly what possible problems I was told could arise nor can I remember where I heard it but it had something to do with the deposits that form and casing leaks, etc.

Is this just a myth? I plan to just flush the system like I did when I switched weights, would that have any negative consequences?

[hurley97]

I bought the car at 126k miles and have changed the oil every 3-5k miles since then. it now has 167k.

that is exactly what I heard would happen. Auto-Rx sounds like a plan to me, although I havn't ever seen it I assume somewhere like Autozone will have it?

Thanks!