Hey folks: I'm coming here for this question as I can't stand attempting to approach a dealership for this type of question. My local dealer doesn't respond at all...
2015 F350 with 70,000 on the clock. I've refreshed the antifreeze twice with their PH additive, and somewhere I read that was the maximum allowable before needing replacement of the coolant. However, the maintenance manual states first change out at 100k IIRC.
It's a daily driver, and also used to tow my roughly 12k lb 5th wheel, with some fairly good grades here in Washington State.
Appreciate any help....
2015 F350 with 70,000 on the clock. I've refreshed the antifreeze twice with their PH additive, and somewhere I read that was the maximum allowable before needing replacement of the coolant. However, the maintenance manual states first change out at 100k IIRC.
It's a daily driver, and also used to tow my roughly 12k lb 5th wheel, with some fairly good grades here in Washington State.
Appreciate any help....