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Old 08-09-2020, 09:18 PM
Entropy11's Avatar
Entropy11 Entropy11 is offline
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Join Date: Dec 2019
Location: North Tonawanda, NY 14120
Posts: 381
Default Radiator tag code

Hi- any ideas on a code: “FO 4”

It’s an old radiator that was in my ‘68 GTO but nothing at all appeared to be original at all so I doubt that helps.

The “4” is smaller and spaced over a bit from the FO.

Not a big deal, just hate to scrap something somebody might actually be looking for. Thx.

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Old 08-10-2020, 10:14 AM
Tomslemans67 Tomslemans67 is offline
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Join Date: Sep 2005
Location: Monroe MI
Posts: 251
Default Cleaning coolant sytem

Can anyone give me ideas on how to clean my cooling system? I’m looking to do this with the radiator not being in the car. I don’t want it getting clogged. The reason I am doing this is that there is rust in fluid. Thanks Tom

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