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Is G12 coolant perfectly safe for an Aluminum Rad ?

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Old 05-21-2003, 04:33 PM
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Default Is G12 coolant perfectly safe for an Aluminum Rad ?

going to replace the rad in my little spitty with an aluminum rad from summit racing and just checking to see if there are any issues ?
Old 05-21-2003, 07:04 PM
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Default Re: Is G12 coolant perfectly safe for an Aluminum Rad ?

As long as it is phosphate free, I don't see a problem.

BTW, a friend is putting a tripple carb'd, cam'd, etc TR6 I6 in his Spitty as we speak...
Old 05-22-2003, 08:54 AM
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Default Thanks for the input !!

That engine should be putting out close to 200hp...hmmmmm!!
Old 05-22-2003, 05:53 PM
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It's designed esp. for use with Aluminum; the only reason to use it over G11!
Old 05-23-2003, 06:27 AM
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Default Re: Thanks for the input !!

After looking at the '99 A6Aq, I'd say G12 will do just fine in your Spitty, as that is what's in that car. Otherwise, you can get away with just about any phosphate-free antifreeze/coolant.

The TR6 motor is being pessimistically rated at ~170hp. He didn't want to get his hopes up, but either way it'll be one nice Spitty when he's done with it (being set-up as a Street Prep. or Prep. class auto-x car, can't remember which).
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