Coolant Filter Without Chemicals

The objective of diesel engine coolant filters, also known as water filters, is to remove contaminants from the engine cooling system. Coolant filters can be of cartridge or spin-on design. However, spin-on designs are most common on today's diesel engine cooling systems. 

Coolant filters without chemicals, commonly called "Blank" coolant filters, should be used when a system is adequately charged and no additional SCAs are needed. 

The status of a cooling system can be determined using Baldwin's FleetStrip coolant test kit.