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What type of coolant?


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did an engine swap in my 09 Legacy, confused with what Coolant to use. Green coolant came out of my engine when I was draining it, Do I use green or blue?

 

If its green, would this one work? https://shop.advanceautoparts.com/p/peak-original-equipment-technology-asian-green-50-50-antifreeze-coolant-1-gallon-pagb53/11979619-p?c3ch=PLA&c3nid=11979619-P

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2009+ came with blue subaru super coolant. Zerex, peak, napa, and other companies have their blue asian variety.

https://www.napaonline.com/en/p/NAFNABB53?

 

If you drained green out of your old engine, your radiator should be empty, and there should just be a little left in your heater core. Question is to mix what little might be in the heater core, if any with the blue that you should be using? Subaru makes it sound like it's okay to mix green and blue coolant

https://www.subaruoutback.org/threads/super-blue-coolant-mix-with-green-sllc.182330/#lg=thread-182330&slide=0

 

Still maybe just stick with green since that's what came out, like the stuff you posted..

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Yep, Prestone has worked will in my wagon since I did the timing belt in 2008. It also works in my 86 Ford F150, and my 09 Spec B.

305,600miles 5/2012 ej257 short block, 8/2011 installed VF52 turbo, @20.8psi, 280whp, 300ftlbs. (SOLD).  CHECK your oil, these cars use it.

 

Engine Build - Click Here

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2009+ came with blue subaru super coolant. Zerex, peak, napa, and other companies have their blue asian variety.

https://www.napaonline.com/en/p/NAFNABB53?

 

If you drained green out of your old engine, your radiator should be empty, and there should just be a little left in your heater core. Question is to mix what little might be in the heater core, if any with the blue that you should be using? Subaru makes it sound like it's okay to mix green and blue coolant

https://www.subaruoutback.org/threads/super-blue-coolant-mix-with-green-sllc.182330/#lg=thread-182330&slide=0

 

Still maybe just stick with green since that's what came out, like the stuff you posted..

 

 

Just an fyi- You can add blue to green, but not recommended to add green to blue. If you add anything to blue (besides blue) even water, it shortens the mileage interval. Anything added to blue cuts the replacement interval by at least 50%. If you have green coolant the mileage interval won’t be affected.

 

 

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