2006 X5 3.0 Radiator has some small leaks, new Nissens radiator on order.

Should I do a flush while I have the system apart anyway? Or a chemical clean?

What products are most highly recommended?

I have read that some of these products are strong acids that need a neutralizer to be put through after.

Others say not to use the chemical cleaners because you may burn through weak parts with the acid and cause more leaks.

Not sure what the best thing to do in this situation. b