Re: CLR to clean out Engine Waterways

Posted by HH56 On 2010/12/3 12:25:22

I have used it for it's intended purposes and frankly, was not that impressed despite the stars in the ratings. The FAQ does mention that it was not recommended on the car as it might contact aluminum or paint and is not recommended for cleaning radiators or cast iron due to metal reaction.jelmar.com/faq.htm