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Mixing different kinds of coolant

 
Old 04-04-2019, 11:18 AM
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Mixing different kinds of coolant

I was recently doing some work that involved flushing all my coolant out, and during the refill I had to mix two different brands of Coolant together. Quicktrip gas station generic coolant, and PEAK brand coolant.
Is doing this alright for our engines? I heard that mixing coolants is generally not a good idea, as the mixtures might cause buildup.
If this isn't a good idea, how imperative would ya'll say it be that I fix this? Can I get away with a few more weeks of daily driving, or should I do another flush this weekend?
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Old 04-04-2019, 11:22 AM
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You should be using a Type II Honda blue coolant, it's not that expensive. I'd flush it all out.
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Old 04-04-2019, 11:22 AM
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The KEY thing is to make sure your coolant is "Silicate and phosphate FREE", Since your radiator and engine block is aluminium, it has to be coolant that doesnt have silicates and phosphates.
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Old 04-04-2019, 01:22 PM
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Probably could have gotten away with topping it off with Distilled or de-ionized water...
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Old 04-04-2019, 09:09 PM
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Sounds like a resounding "no that is not okay" haha. I'll take care of it either tomorrow or next week. Thanks fellas!
Justnspace, is that due to concerns of the aluminum being "sanded" away from the inside by the silicates?
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