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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Jul 2022
Posts: 460 Likes: 80
Learner Plates Off!
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OP
Learner Plates Off!
Joined: Jul 2022
Posts: 460 Likes: 80 |
One of my winter projects was the installation of an aluminum radiator and will be switching to G13 coolant. I had the water pump and timing gear cover off to replace the front main seal, and the inside of the water jacket was surprisingly clean and rust free. I'm thinking just a plain water flush and drain, then fill with 50-50 coolant and distilled water. Thoughts?
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Joined: Jul 2007
Posts: 28,912 Likes: 354
Salty Sea Dog Member of the Inner Circle
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Salty Sea Dog Member of the Inner Circle
Joined: Jul 2007
Posts: 28,912 Likes: 354 |
That would be my thinking too 
Graham (G4FUJ)
Sold L44FOR 4/4 Giallo Fly
'11 MINI Countryman Cooper D All4
'90 LR 90 SW
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Joined: Feb 2016
Posts: 8,702 Likes: 416
Needs to Get Out More!
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Needs to Get Out More!
Joined: Feb 2016
Posts: 8,702 Likes: 416 |
Good idea to buy a refractometer (cheap on eBay) to measure coolant freezing temp. I was surprised to find the factory coolant protected to -40°C so following rad change put the fresh Mannol AF12+ coolant in neat as recommended, to give same.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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