Originally posted by 2redtours:
The dealer used a slightly too-strong antifreeze mix.
Actually that's the opposite.
Too much antifreeze versus water would cause the car to run hot. Water is a much better coolant (transfers heat better) than Anti-Freeze is.
Anti-freeze is used so the mixture doesn't Freeze. As an added bonus it contains an additive package to prevent corrosion. The new OAT antifreeze won't even leave deposits like the old green phosphate kind will as yet another bonus.
I normally run atleast 60% water to 40% anti-freeze. On my last car (a turbo) I ran 70% water & 2 bottles of water wetter to ~25-27% anti-freeze.
