Quote:
Originally Posted by harleytoprock
Chris, Muriatic will remove rust much better and quicker than vinegar. I'd try the muriatic again. For your baking soda neutralizing solution, add some liquid clothes detergent to it. The phosphates help to neutralize. I use 2oz of soda plus 2 oz of detergent per gallon of water. Leave the solution in there for about 15 minutes before rinsing.
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The Muriatic acid did a great job on the engine. I was concerned about putting it in the radiator.