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Thread: phosphate 3 coolant

  
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    pardoe16V's Avatar
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    phosphate 3 coolant

    does anyone know if vauxhall coolant is phosphate 3??? ive been told that phosphate 3 is the best to use with an alluminium head, most car spares places dont even know what im on about!!!

    or does anyone know where sells it? halfords? motorworld etc?

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    wot you talkin 'bout ????

    speaka de ingleesh ??

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    Back on Topic though......

    "Reviewing the most common inhibitors we find: - Phosphate is the most ubiquitous and most controversial inhibitor. It is a well known inhibitor of ferrous metal corrosion, hence trisodium phosphate is used to clean of sheet metal. American car manufacturers have specified phosphate in coolants because it is highly effective at preventing cavitation. Europeans specify non-phosphate coolants because phosphates have a propensity to precipitate in hard water. Also, phosphates have a negative effect on the corrosion rate of aluminum. This beneficial effects peak at concentrations of about 3 g/l and decreases at both lower and higher concentrations. Typical concentrations in coolants range from 0 to 8 g/l."

    So I would say probably no to them having phosphates in the coolant.

    Source: Clinky

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    pardoe16V's Avatar
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    ok ive got a headache now!!!! lol

    uhhm, ill ring him back up and ask him why he recomends it!!! ill keep you all posted!

    MK4 1.8 16V Sport and MK5 CDTi Estate




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    Luke, I think Jason at chipped uk was talking about Phosphate free coolant, could you have misheard?

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