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Which Coolant?

The Caltex 'Extended Life Coolant' concentrate and premix is an excellent product. The premix uses de-mineralised water too It has wide approval from European car makers (Mercedes, VW, Audi etc ) and most truck makers with many alloy components.

It is silicate free, contains a nitrite booster and is based on carboxylate technology which is ideal for iron and aluminium alloys and is also Phosphate free!

I have nothing other than a commercial relationship with oil companies - so no axe to grind (My cars and trucks run Shell and Mobil products)

For warranty reasons only I use Detroit Coolant Premix in my trucks - I think it is actually made by Mobil to stringent Detroit specs - Doug H '89 S4

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