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[Bud Kaiser]

I just changed out my coolant with a 50/50 mixture of antifreeze and distilled water. Do I need an additive to protect my liners?
If I do what do yall use or recommend?
Thanks:

 

[KYpatriot]

(quoted from post at 21:42:49 01/26/18) I just changed out my coolant with a 50/50 mixture of antifreeze and distilled water. Do I need an additive to protect my liners?
If I do what do yall use or recommend?
Thanks:

John Deere Coolgard already has the additives, so you are good for awhile if you used that. I buy additive for my truck, and John Deere sells additive as well as the test strips.

 

[David G]

As stated, if coolguard you are fine, otherwise an anti cavitation additive must be used.