undiluted antifreeze
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Redline water wetter appears to improve the heat transfer coefficient of water enabling some increase in heat transfer from the engine to the coolant and from coolant to the radiator. If the cooling system is not overheating then no need for it. If the system is marginal in some conditions then it may help.
cheers
Rohan
cheers
Rohan
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rgh0 - Coveted Fifth Gear
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I have always used the coolant i buy at a Renault garage "Type D" and don't mix any water with it. No problems.
Alan
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
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Rohan, as always, is completely correct regarding heat transfer. if you are in the UK, I would recommend 33% AF rather than 50/50, given the need to get the heat out of an Elan engine. That's what we put in all our vehicles, Lotus or otherwise. Antifreeze has a tendency to find and exacerbate leaks, especially when concentrated, but it is allegedly good for preventing corrosion to aluminium.
1970 S4SE/1760cc big valve/SA-AX block, L2s, 45DCOEs, 1978 Jensen GT, 1962 AH Sprite, Alfa-Romeo 159, 1966 Bristol Bus, 1947 AEC Regal bus.
- nigelrbfurness
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Chancer wrote:That is already diluted Alan, I have yet to find concentrated anti-freeze here, all the ones I have found have been "ready to use".
+1 it is ready to use already mixed as marked on container.Not indicated % of mix
I don't know if it is mixed with demineralised or distilled water. Ethylene Glycol Type "D" which is not to be mixed with Type "C". Good for -20?C.
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
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Don't mix and match though.
Either use red or blue.
The antifreeze I get from Halfords in the U.K. is neat & I mix it myself about 50-50 but all topping up during the year is with distilled water.
Either use red or blue.
The antifreeze I get from Halfords in the U.K. is neat & I mix it myself about 50-50 but all topping up during the year is with distilled water.
Richard
'72 Sprint
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- richardcox_lotus
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Surely when you top up you should use the same mix.
You could also measure the strength to see if water only or mixture for topping up.
Halfords Antifreeze tester ?1.99
Alan
You could also measure the strength to see if water only or mixture for topping up.
Halfords Antifreeze tester ?1.99
Alan
Alan.b Brittany 1972 elan sprint fhc Lagoon Blue 0460E
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Yes, you're right in that a manufacturer can use any colour they like, but in general blue/green antifreeze is the old-fashioned type that used Inorganic Additive Technology (IAT) to prevent corrosion. This required changing every two years. Orange coloured antifreeze uses Organic Acid Technology (OAT) and is "long life" requiring changing every five years. OAT is said to be unsuitable for classic cars as it attacks the lead solder in the radiators (at least original copper/brass ones). For this reason I've stuck to IAT in my classic cars, but loads of people seem to use OAT and report no problems...
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draenog - Third Gear
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