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Danski · Posted: Sun Oct 12, 2014 8:12 am Post subject: "green" coolant

Okay so I'm begining to wonder if I am using the wrong coolant now. Basically I put in valvoline Xerex (https://valvoline.com/products/consumer-products/antifreeze-radiator-products/antifreeze/40) as it said it was safe with aluminium. But I have since heard that all 'green' coolant should not be used and that there is also a red variant of the xerex? I believe the xerex does have some silicone in it but it is low. Would it be worth changing or is this stuff actually safe?
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1985 Porsche 924 NA

jason c · Joined: 13 Jan 2014 Posts: 1018 Location: Nwi

The green is fine. If you do change to red "dex-cool", you'll have to completely empty & flush the system. Green & red can't be mixed, it turns to mud.

leadfoot · Posted: Sun Oct 12, 2014 7:11 pm Post subject:

yes, plenty of green options of coolant that are aluminum safe...
as long as you read the instructions you're fine...
Stu
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1981 ROW 924 Turbo -
carbon fiber GT mish mash
LS1 conversion in progress...

Rasta Monsta · Joined: 12 Jul 2006 Posts: 11733 Location: PacNW

I put this stuff in everything:

Pentosin NF.
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Toofah King Bad

WeiBe (1987 924S 2.5t) - 931 S3

TYPE111 · Posted: Mon Oct 13, 2014 9:49 pm Post subject:

Green from Repco in mine.
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Trust, Then Verify

Danski · Posted: Wed Oct 15, 2014 6:30 am Post subject:

Thanks guys! That's reassuring

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1985 Porsche 924 NA