what cooling system additives do you guys use in your radiator?

John it's ok, that's just rich and jeff ;)

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Originally Posted by JohnK

I know I'm relatively new here compared to some and I don't know a much as many of you, but what I do know is I hope I never get the point that I feel like I know so much that I can sh*t on people for not doing things exactly the same way I do.

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Some one pi$$ in your cheerios John? I pay you a complement and agree with with what you said, and you act like someone insults you? NO ONE SH-T ON ANYONE

Why do you think I was referring to you?

Fido!

Ive been involved with a lot of road race mustangs. Some with no cooling fans...Water Wetter has been good.

I tried water wetter and it may have helped 5º. It was only $12 and I needed a top-off anyway. I filled through the overflow tank.

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Originally Posted by NiceGuyEddie

I tried water wetter and it may have helped 5º. It was only $12 and I needed a top-off anyway. I filled through the overflow tank.

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$12 for 5* difference is pretty good!

I would wait and see if the machine runs hot. I remember reading that a long-time land speed racer found that his Ford Windsors ran best at 192 degrees - basically the OEM thermostat temp as far as I know.

I have no idea if that is true for other engines, but I'd start with the factory thermostat and regular coolant, and if it runs at the recommended temperature, do nothing. I don't see how reducing temps below what the factory determined is a good operating temp would help anything.