how to flush engine and transmission oil?
thinking about using Amsoil oil, is it good?
should i use regular oil to flush out engine and tranny, and then put amsoil oil or should i use amsoil to flush oils completely?

 

You cant truly FLUSH, unless you have some kind of special machine to do it.

 

check the fluids and lubricants section

 

Amsoil engine flush. Works great.
So does seafoam with synthetic, if you are using dino oil.