Gravelguy413 Posted August 1, 2021 Share Posted August 1, 2021 I’m running the red coolant in my 96 RD and just changed the coolant filter with a Mack brand. Is this ok? I read where somebody said Mack filter is only to be used with green coolant. Should I change back to non Mack filter? Quote Link to comment Share on other sites More sharing options...
mrgumby Posted August 1, 2021 Share Posted August 1, 2021 (edited) They do sell an untreated filter with no sca in it tell them that’s what you want I know Baldwin Donaldson and luber fiber sells them untreated don’t know if Mack does Edited August 1, 2021 by mrgumby Quote Link to comment Share on other sites More sharing options...
Vmac3 Posted August 1, 2021 Share Posted August 1, 2021 Long life coolant should be tested for acidity and sca content. I know that fleetgaurd sells them. To change a coolant filter without checking the condition of the coolant should be avoided. The newer Etechs with long life coolant did not come with a coolant filter. Mr grumby is correct, stick an untreated coolant canister back on and check the the condition of the coolant. If it needs additives, they sell them in packets or liquid. V 1 Quote Link to comment Share on other sites More sharing options...
Gravelguy413 Posted August 1, 2021 Author Share Posted August 1, 2021 Got it thanks Quote Link to comment Share on other sites More sharing options...
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