Must be better for the hg too i'd imagine.
Well it helps to keep the engine running at optimum temp, yes.
However, as for it being 40°c outside in the summertime, which climate do you live in? Iraq?
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"Supercharged - 454.1bhp/317.5lb/ft"Peugeot 306 GTi-6
2000 (X), Moonstone