Radiator Fluid Combo

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May 24, 2017 | 09:48 PM

#21

Singh_snisen

Joined: Jan 2017

Posts: 861

Likes: 24

From: United States

Oem fluid in countless race cars here in Cali.

May 25, 2017 | 04:48 AM

#22

King Tut

Registered User

Joined: Jul 2014

Posts: 2,629

Likes: 53

From: Fort Walton Beach, FL

Quote:

Originally Posted by imstimpy

I have a bottle of water wetter ready to go for my new Koyo but their FAQ has me spooked. They specifically suggest against water and additives.

Any of you guys see any long term ill effects to water wetter? While my car does have a license plate, it has spent the last two years exclusively for autox and HPDEs.

That FAQ tells me all I need to know about Koyo and their "racing" radiators. It is clearly a CYA attempt. We all know that distilled water and Water Wetter are going to be more corrosive than a proper OEM coolant and that is why they mention it. Also all true "race cars" are not allowed to run coolant and therefore would not be allowed to run a Koyo "Racing" radiator.