hello everyone,

I am going to replace my radiator soon, and I wanted to clean the system before i replace the rad because if I do it after the new rad is installed im worried that any debris may break loose and plug my new radiator. My question is, can I use a mixture of CLR and water in my cooling system to clean it out. I already flushed it free of all coolant and I am wondering if I can put CLR in the engine and drive it around for a day then drain it and flush it with clean water. Only reason Im asking is that it says do not use on copper, aluminum or brass.

Anyone have any info on this?

Andy

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1983 300DT 284k miles. :-) "The Benzo"
1998 Mustang GT Custom 4.9 L engine.
1997 Dodge ram Pickup 5.9L