7.3 Ford coolant additive
In a prior thread the number for the coolant additive was pf-22 from ford I found VC8 is this the same?
Forum Discussion
colliehauler wrote:
Sidecar is the DCA4 different then the above mentioned additive? I went with the American made Moog ball joints as well.
DCA4 is potassium permagnate and di-ionized water and SCA additives. I think the FoMoCo additive is the same. I've used both, DCA4 in the past and now the FoMoCo additive.
DCA4 is what you use in a big truck with conventional antifreeze. The new 'extended life' anti freeze for diesels has the SCA additives already in them but, and here is the big but...
If you switch from conventional ethylene glycol (the green/gold) antifreeze to the SCA charged extended life diesel antifreeze, it's imperative that you flush every bit of the ethylene glycol conventional antifreeze out of the system which, entails pulling the drian plugs on each side of the block on a 7.3 (one located above the starter, the other under the oil cooler). If you don't get every bit of the conventional antifreeze out and add an SCA pre-charged diesel antifreeze, the residual conventional antifreeze will react with the pre-charged extended life and cause it to solidify into a gooey mess. I know someone that happened to and it wasn't pretty and expensive to repair.
Why I stay with the conventional ethylene glycol a/f and add the additive. Only vehicle I own with conventional a/f anymore. Every other vehicle is extended life, gasoline and diesel.
When I added the coolant filter (no I didn't buy the Diesel Site unit, I bought a less expensive one), they all do the same thing, they mount a filter and in my case I use a Baldwin filter, when I cut it open after 5,000 miles I was amazed at the amount of casting sand in the filter that has been circulating in my engine all these years.....They work, I can attest to that and I think that is why I had to replace the water pump last year, the sand ate up the seal.
Hope that helps.
