<strong>Yahoo Message Number: 77740</strong>I currently have Fleetguard ES Compleat PG (Blue) as the coolant in our Cummings 600 engine. I'm looking for a source (internet or other) for the concentrate or the 50/50 mix (Located in Fredericksburg, TX, near San Antonio/Austin). Or information for a substitute like a Peak or Prestone product. Any information would be greatly...