Coolant Drain and Fill

[esclamada]

Here's my take on changing coolant,

There are several ways one of them involves flushing which I don't want to do since I don't see any need for it. The coolant I'm going to add anyway is safe with the existing coolant. The process of putting tap water and flushing it out until its clear is also time consuming. Also there are discrepancies on what to add after the flush, some say add 50/50 premix coolant (this ends up only 25% antifreeze added), some say 100% coolant since water was added anyway (will be 50% antifreeze). I don't want to put tap water into my cooling system or remove the thermostat. I just went ahead drain and refill the coolant although it's only 50% initially. It doesn't matter as long as this process is being done yearly (or more than in 1 year), the coolant will always be not 100% old. I don't see any issues with bleeding air compared to my 98 continental.

The mountaineer with the aux climate control has 20 qts of coolant of which 10 qts (2.5 gals) gets drained.


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[dwcopple]

Nice job, but I would've stayed with the Zerex or Motorcraft stuff.

 

[esclamada]

Right, Zerex is only carried by Napa and Motorcraft is just way overpriced by the dealers. I'll switch to Zerex (just the green one, not the G-05) on my next oil change. I just realized that motorcraft/zerex has some silicates in the formulation while peak just didn't have it (to be universal I assume)

Somehow automakers, european, domestic and asian don't agree with the amount of silicates and phosphates on the coolant, so the universal coolant just tend not to have any of them.


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[field]

Anybody know of a way to add just silicates and phosphates for those of us living where we never face a freeze?