Forum Discussion

LBL_1206's avatar
LBL_1206
Explorer
Jul 29, 2013

Antifreeze Coolant Xchange

how often, miles/age, do you change your radiator coolant?
do you have them back flush your radiator also?
mine appears still to be clean but who knows what lurks inside that
radiator...truck is still in great shape and has 59k mile on it, no hard travel or use...would just kinda like input from ya'll....
Tow Vehicles
  • Goose2448's avatar
    Goose2448
    Explorer
    Jul 29, 2013
    I know for the Duramax's its every 50K miles. I doubt mine has ever been changed, bought used, so thats up on my list of things to do. Make sure you are using the correct coolant as well.
  • agesilaus's avatar
    agesilaus
    Explorer III
    Jul 29, 2013
    Your dealer will test your antifreeze to see if it's still effective. It's probably worth it on diesels but on gassers I'd just change it out once a year or so.

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