Originally Posted by colinmitchell111
Ok. I thought when you do the flush with the restore it gets all the gunk out of the cooler. And I was planning on checking the temps before I start the project.
Due to the design of the oil cooler, that will never happen.
Liquid enters and exits through the top of the cooler. Anything that could possibly get stuck in there would get packed in hard enough that npo chemical will cut through it.
If you are changing coolant types, you will need restore and
restore+ (or use Ford VC-9). Neither of which will help an oil cooler, and will likely have the opposite effect.
The restore chemical removes a chemical layer deposited on the walls of the cooling system left behind by the Ford Gold. A big chunk of this could get caught up in your oil cooler.
The Restore+ (or VC-9) will remove the rust scale on the walls of the cooling system. The rust scale is very close to a powder at that point, and will easily pack together real tight in the oil cooler.
What you would then be asking a chemical to do is impossible. You would be expecting the chemicals to cut through steel (rust scale) 8 inches horizontally, 0 inches vertically and to not harm aluminum in the process.