Coolant flush or refill?

**StockEngine** · December 28th, 2019 02:21 AM

Originally Posted by Ronpascual

Actually sir dinrain ko existing ko, pero sa radiator at coolant reservoir lang. Nagtataka lang ako nung binuhos ko orange coolant tapos distilled water, naging green siya sa ibabaw.
Anyone here experience the same?

The cooling systems includes passages inside the engine.

simply draining the radiator does not remove the coolant entirely. if you really want to remove the coolant there are ways to do so. you can remove the radiator hoses top and bottom and you can also remove the thermostat as that is "closed" on a cold engine. by doing these all that coolant should go down the drain. you can do this twice to complete change to a different coolant.

**Ronpascual** · December 28th, 2019 10:48 AM

Originally Posted by StockEngine

The cooling systems includes passages inside the engine.

simply draining the radiator does not remove the coolant entirely. if you really want to remove the coolant there are ways to do so. you can remove the radiator hoses top and bottom and you can also remove the thermostat as that is "closed" on a cold engine. by doing these all that coolant should go down the drain. you can do this twice to complete change to a different coolant.

Kaya nga sir. I missed removing the radiator inlet and outlet hose. Should I be worried now? 4 days ko ng gamit after changing coolant which is supposed to be orange but turned green on top but so far okay naman takbo niya.

**shadow** · December 28th, 2019 11:08 AM

Originally Posted by Ronpascual

Kaya nga sir. I missed removing the radiator inlet and outlet hose. Should I be worried now? 4 days ko ng gamit after changing coolant which is supposed to be orange but turned green on top but so far okay naman takbo niya.

Anong kotse? Toyota ba? Baka naman nahaluan na dati ng ibang coolant?

Supposedly dapat drain and fill is ok na kung same coolant ipalit.

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**dr. d** · December 28th, 2019 11:14 AM

Originally Posted by shadow

Anong kotse? Toyota ba?

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i am curious.
does it matter?

**shadow** · December 28th, 2019 11:54 AM

Originally Posted by dr. d

i am curious.
does it matter?

Coolant color.

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**dr. d** · December 28th, 2019 12:22 PM

Originally Posted by shadow

Coolant color.

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ah yes.
red si toyota, green si sentra...

red + green = brown, which might be interpreted by some as orange, if it is not too concentrated.

**shadow** · December 28th, 2019 12:23 PM

Originally Posted by dr. d

ah yes.
red si toyota, green si sentra...

Honda-blue. Kaya baka nahaluan na before.

To Thread starter, mag drain and fill ka na lang ulit ng isang beses and pre-mixed na ilagay mo.

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**zechs** · December 28th, 2019 12:59 PM

Ako usually drain lang from radiator plug then flush with water. Pag clear na, refill it with ready to use prestone coolant.

**dr. d** · December 28th, 2019 01:03 PM

Originally Posted by zechs

Ako usually drain lang from radiator plug then flush with water. Pag clear na, refill it with ready to use prestone coolant.

dad used to place a garden hose into the radiator's filler neck, back when radiators had open-able filler necks, open the radiator drain, and run the engine at idle until the draining water is clean and clear. it took only a few minutes.