Thanks guys, I went back and found the 2 shutoff valves. Thanx!
Next: Is their only 1 zinc and located in the housing of the after cooler tank?
Just to ask one more question when already speaking of coolant filter, is it necessary to use coolant filter with SCA when using new OAT antifreeze since I do have problem finding those filters with SCA in my country, but I can find the ones without SCA. Did find one with SCA but with higher amount than I need.
Two valves even on my old type V-504 Cummins.
Just to ask one more question when already speaking of coolant filter, is it necessary to use coolant filter with SCA when using new OAT antifreeze since I do have problem finding those filters with SCA in my country, but I can find the ones without SCA. Did find one with SCA but with higher amount than I need.
The coolant filter with SCA needs to be compatible with the coolant you use. The filter SCA slowly releases to replace the SCA loaded in the coolant as it depletes. If the coolant uses a different corrosion inhibitor chemistry, then the filter is not compatible. Look up the OAT coolant for details on its chemistry or contact the vendor. There are filters available with no SCA.