I vintage road race my 64 FI car. Vintage racing rules prohibit use of antifreeze coolant. If it gets on the track its slippery. I use water and a water wetter solution. During my winter inspection I noticed that there was a white deposit around the coolant holes in the block in the rear and front at the head/block interface. I think this is corrosion. The radiator is aluminum. Any suggestions how to combat this. Jerry
cooling system corosion C2
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