Bardahl Fuel Economy technology with high viscosity HTHS. For engines requiring low temperature fluid lubricants and increased protection at higher temperatures. For cars not equipped with DPF or DPF. The exclusive anti-friction FORMULA Bardahl Polar Plus - Fullerene for a triple layer of protection: a surface lubricating film, a zone of polar molecules plus Fullerene C60 molecules as a final protection mechanism. Polar Plus forms a molecular lubricating film which, by chemically fixing itself to the metal, creates a permanent protective barrier, drastically reducing friction on all parts of the engine. XTC C60 5W-40 is suitable for high performance engines that require fluid lubricants that are low temperature and at the same time protective at the operating temperatures that can occur du.