I am considering using a waterless coolant manufactured by Evans in my new Fiesta. The coolant is not corrosive, freezes around -40°C, has a boiling point of 180°C and does not need changing.

With this coolant one could remove the hot radiator cap without fear of an explosive face full of steam. The reduced pressure in the system would prevent the instance of burst hoses and failed clips. It is also claimed that the coolant results in less use of the engine fan thus reducing mpg up to 10° and contributing to a smoother performance.

I would be interested to know whether anyone has personal experience of the product. It is considerably more expensive than antifreeze (c. £95) but would seem to be cost effective if the claims are to be believed. I also am concerned as to whether the use of such a coolant has warranty implications.

Haven't used it myself but it was used on one episode of Wheeler Dealers.

What you lose in initial cost you gain back in the fact that you can re-use the coolant again and again.

You remove the chance of rust in the coolant system therefore extending the life of radiators and avoid clogs from sediment.

I can't see how it can affect a warranty in any way tbh.

Thanks for that.

I saw the same Wheeler Dealer programme. You would think that if half the claims were true that car manufacturers would all be adopting it.

I will certainly consider using it when the antifreeze has to be replaced.

they do it as they do purely for cost

It will cost them about 20p to make / buy the coolant for one car at the point of manufacture, whereas that for £95 is much more expensive.