I bought 5 litres of Ford Super Plus Premium from a reputable company online. Once mixed 50 50 with water, I tested it with one of those "turkey baster" style testers, with the 6 different coloured discs. Only the first 2 discs float, giving a protection around the late teens.
To get anything near -37 (as stated on the container) I needed to up the concentration to around 2/3 - 3/4 antifreeze.
I tested the antifreeze neat and the 6 discs floated correctly meaning not safe. Also normal water makes no discs float which is correct.
I went out and purchased a 1.99 tester from Halfords (3 floating balls) just to get another perspective. A 50 50 mix makes 2 balls float meaning -17'C which sort backs up the the other tester.
It is possible that the Ford antifreeze I have got is a dodgy batch? Or it is likely both testers are way off the mark?
I have a mix of around 60% antifreeze, 40% water and it gives 3 floating discs and -23' protection which I am happy with. What I am bothered about is whether the higher concentration of antfreeze will have any long term affect on the cooling system?
Note - also the mix is orange like the older stuff, and not the newer pink/purple (which I thought was strange)
Regards Paul
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English Electric
Member Since 07 Sep 2012Offline Last Active Sep 21 2012 09:20 AM





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