Originally Posted By: LargeCarManX2
Diesel Coolant does not have silicates like regular coolant does....
Not entirely true, some do, some don't. CAT DEAC coolant has silicates.
Originally Posted By: csx7006
can i add SCA's?
Yes, but generally not needed. CAT ELC contains 'Carboxylic Acid' as its main inhibitor, it also contains 600ppm Nitrite, so its technically a NOAT coolant. CAT has whats called 'ELC Extender' which is to be added for an on road truck at 3 years/3,000hr/ 300,000 miles, roughly half life of the coolant. Conventional coolant SCA has shown to have negative effect on ELC.