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Phosphate on the other hand isn't as good at protecting Aluminium and tends to create deposits....
The Asian vehicles I've used PHoat AFs in, the radiators have stayed pristine looking even at 100k+ miles. I have no idea the source of that information, but ime Phosphated Oat AFs do a great job of protecting aluminum with no significant or noticeable deposits over their recommended long service interval. And I don't read many issues on this subforum with folks using them in thier Asian vehicles. Usually the opposite in fact. That and the Asians vehicles, don't recommend or use silicates in thier AF.
To topic, already been some suggestions, all which seem fine (none w/2eha). I'd likely do a distilled flush series before making a change, but that's just me.
Phosphate on the other hand isn't as good at protecting Aluminium and tends to create deposits....
The Asian vehicles I've used PHoat AFs in, the radiators have stayed pristine looking even at 100k+ miles. I have no idea the source of that information, but ime Phosphated Oat AFs do a great job of protecting aluminum with no significant or noticeable deposits over their recommended long service interval. And I don't read many issues on this subforum with folks using them in thier Asian vehicles. Usually the opposite in fact. That and the Asians vehicles, don't recommend or use silicates in thier AF.
To topic, already been some suggestions, all which seem fine (none w/2eha). I'd likely do a distilled flush series before making a change, but that's just me.