LouHill
New member
I am using Fleetguard Antifreeze with additives that I purchased at my local TSC store. I'm using it in a John Deere 770 diesel tractor (24 Hp). Can anyone tell me how often I should change this antifreeze. I understand the additives go bad after a while. Can I get by with changing the antifreeze once every two years? Thanks for your views on this matter.