WHO? DEi Engineering
CONTACT?  www.nimbusmotorsport.co.uk

Heater Hotter is a performance radiator additive specially formulated to rapidly absorb heat from the engine and transfer it to the cooling system, without raising engine temperatures.

This means that according to Dei Engineering, Heater Hotter halves the time it takes to reach normal operating temperature, makes interior hot air available faster and also reduces engine wear – in short, if it does what it says on the tin, it’s ideally suited for the winter running of older VAG cars.

Heater Hotter is available through UK stockist Nimbus Motorsport, who promises that this additive is compatible with all antifreeze mixtures and safe to use with all alloys (including aluminium).