SCAF or Per-mix ?

   / SCAF or Per-mix ? #2  
I assume you are talking about SCA coolant? Premix has better quality water premixed, while the concentrate you mix with your own water.
   / SCAF or Per-mix ? #3  
Do a little brain math and consider quantity needed. If the premix cost significantly exceeds the concentrate plus deionized + distilled water cost, then mix it; UNLESS the quantity you need is less than 2 gallons, in which case you would have extra poison sitting around. What 'ntarnation does SCA or SCAF stand for????

   / SCAF or Per-mix ? #5  
SCAF = Some Confusing Abbreviation Fundamentals ?
   / SCAF or Per-mix ? #7  
Okay good, now we know what the subject is. Maybe someone will be more help than me, I just buy what my dealer has on the shelf.