Another two-year mix and the best outright performer in the test. As usual, the concentration needs to be 30% or higher to stave off freezing at -18℃. But this product beat all others in the heat capacity/ conductivity test, albeit only marginally. Whether this would make any difference in real life conditions is questionable. With this in mind, we can't help thinking that paying almost ￡22 for a two-year mix is a little steep. And while it's generally acknowledged that two-year mixes are universally compatible, Halfords suggest this should only be used in pre-1998 enqines.
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