Vortec dex-coolant flush?

ok, here's deal, im coming close purchasing '06 burban 72,xxx. concern horror stories coolant. dex-cool still eat through intake manifold gaskets? own '99 tahoe i've had last ten years came stuff. had flushed after year , have been using "universal" coolant since; no problems. told dex-cool has been "improved" , doesn't cause problems did in past. ok flush or leave in there.

ok, here's deal, im coming close purchasing '06 burban 72,xxx. concern horror stories coolant. dex-cool still eat through intake manifold gaskets? own '99 tahoe i've had last ten years came stuff. had it...

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