I was talking to some Ford owners over the weekend and they ask me if I had been checking my S.C.A.


I have never heard of it before. It is some kind of Supplementry Coolant Additive that all diesels need they say.http://www.dieselplace.com/forum/smileys/Confused.gif


Any one here ever hear of it and do we need to check this on our Duramax?

I think this is unique to the Ford 7.3 Powerstroke. They have a cavitation/corrosion problem in the heads, this additive deals with it.

I check it on my cats and my macks.... never thought about it on my dmax.... then again we are running dexcool. if ya wanna check and cat dealer should be able to test a sample.

I had a PSD and it required periodic SCA checks with dipstick and color chart comparision. I had a Dodge with Cummins power and it did not require the additive. I was told by the Navistar dealer that this is an anti cavitation additive for wet sleeve motors. SCA is added to prevent corrosion between the dissimilar metals of the block and piston sleeves (acc to Intl. dealer).