Cooling system Cleaner.
Is it okay to run a Cooling system cleaner in your system - one like Liquid Moly or Prestone? I have a 97 A4 2.8L V6 12 valve. I was concerned about adding something like this in such an old system. Do they even really work?
Thanks
Thanks
Last edited by ProfileTrader; May 1, 2023 at 07:25 PM.
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