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Mishimoto overflow tank what coolant do I need?

Zerkzie

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I just ordered a mishimoto overflow tank to get rid of that plastic monstrosity in the engine bay... what coolant does the 5.0 use? I couldnt find a direct answer when searching online and on the forum.
S650 Mustang Mishimoto overflow tank what coolant do I need? Screenshot 2025-06-02 094821
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GrabberB

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For ease of use you can get the predilated "Yellow". Regardless if prediluted or not Motorcraft Yellow is the answer.

S650 Mustang Mishimoto overflow tank what coolant do I need? Motorcraft Yellow
 

Paul's stable

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I just ordered a mishimoto overflow tank to get rid of that plastic monstrosity in the engine bay... what coolant does the 5.0 use? I couldnt find a direct answer when searching online and on the forum.
Screenshot 2025-06-02 094821.jpg

Can you please post pictures of it installed.
 


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Zerkzie

Zerkzie

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Thanks for the picture. So precise on the half of the circle is the coolant line right?
This means bewlow the circle is too low and above the circle is too high?
Yeah I think when it's cold it should show half of the sight glass with coolant.
 

OldMerc

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I just finished installing the Mishimoto coolant tank from LMR. I prefer the black, but anything is better than the white plastic tank. It took about a half hour and most of that time was sucking the coolant out of the tank with an old turkey baster. It's a perfect fit. The tank holds a little more than the original so there's no coolant showing in the sight glass. New coolant coming from Amazon Monday will take care of that.
S650 Mustang Mishimoto overflow tank what coolant do I need? 20250704_141004
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