This is my first time doing this. I flushed the old fluid, ran a cycle of distiller water, flushed that, ran a cycle of prestone super flush and distiller water, flushed that and ran another cycle of distiller through it. The water is coming out almost clear with a tint of pink and there is still some foam. Should I run another cycle of distilled through or am I ok to refill with coolant?

 

When in doubt flush it out.

 

While you could continue to run water through it, you should be good where you are at this point. You can add the Prestone to the HOAT and be ok

 

hello,
i am the tech manager at Prestone. One more flush with water and you should be good to go. If you need any instructions on cooling system service, please let me know. Jay.Buckley@honeywell.com