Re: 4075 coolant filter
Reply #4 –
Yup, with any of the newer OAT-based coolants, you use a FILTER BLANK. Same filtration, no SCA.
And, if you do have the "older" coolant that does use SCA, as already posted you have to test the SCA concentration to determine what you need. Over-dosing is as bad as under-dosing. Be sure the test strips are not expired.