Which coolant is best for summer?

Technical Area Routine Servicing
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  1. My model of MX-5 is: 1.8 NB Euphonic (2004)
  2. I’m based near: Sunderland
  3. I’m looking for technical help or recommendations on: Swapping Coolant

Hello,

I’m looking to do a full coolant flush and swap. As it’s coming up to Summer, are there coolants about for different seasons? What would people recommend? Cheers

Note: I have no idea what is in the car atm except its a bright green colour :slight_smile:

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Comma extreme G48 for all year round.

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Would i still dillute with de-ionised water? That coolant says to not dillute but I am confused as to why some advise it and some don’t. Everywhere I look seems to recommend the Xstream G30 :thinking:

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No you use it as is, you don’t have to mix it with anything. Never used de-ionised water in my life.

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