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?

[Steevo]

I have done it not only to my Olds with a 3.1 197K miles, but to the celica too 124K.




I also work in parts, not car parts, some things a bit bigger than a tiny 1.8L.