Originally Posted by HAM_RADIO_MAN
Oh boy, thats a can of worms. Lets see if I can word this correctly. My personal feelings are that the Restore will remove the silicate goo left by the ford gold coolant and its does a great job. The Restore Plus / VC9 is an iron de-scaler and it does its job very well also. If your engine has a lot of internal scale there is a very good chance the use of the Restore Plus will help all that newly liberated material find it’s way to your oil cooler. Your oil cooler has the smallest passages in the entire cooling system. I personally used the restore only in my truck with 60K miles and NOT the Restore Plus. I am running ELC coolant and my delta is 4 deg.
If your truck has high miles then I would use both products and plan on changing an oil cooler. If low miles I would use just the restore, change to CAT EC-1 rated coolant and watch your delta between EOT and ECT. In any case you need a coolant filter for a 6.0. and a monitoring solution like a Scangauge or Edge Insight.
Nice dance, HAM_RADIO_MAN !
It isn't the cleaner that clogs up the oil cooler.
The crap that is built up in your cooling system does. The question back to you is, how much neglect has your cooling system seen? How many miles are on that coolant in there now? What are your ECT/EOT 's?
If you don't know, find out, now. When you reach the threshold where replacement of the oil and EGR coolers is recommended, then that is the time to consider flushing the system using BOTH chemicals (and depending on how bad your cooling system is, a reverse flush, a heater core flush and a radiator flush done separately).
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