If you have an OAT coolant (like Final Charge) your coolant filter will NOT have SCAs in it (nor will you need to test strip for SCAs). In the case of OAT coolants, the filter really is just a filter.
Originally Posted by SteveR161
The shut offs are now froze open so the filter can only be changed at coolant changes or if the coolant needs to be drained for any other repair.
Well, not really true. You'll lose about a quart of coolant (or less) depending how quickly you reinstall the new filter - keep the radiator fill cap securely tightened while doing this to minimize spill. I took my valves out do to perpetual seepage and just do quick filter swap outs. Pretty much the same as fuel filter swap outs.