În cadrul aceluiaşi studiu s-a demonstrat că anvelopele umplute cu azot vor îmbunătăţii siguranţa în timpul rulării şi vor avea un efect benefic asupra consumului de carburant. „Rezultatul pe care îl aşteptam din partea azotului era să menţină presiunea în pneuri, ceea ce ajută la conservarea proprieţatilor acestora”, a declarat un oficial NHTSA.
În cele 90 de zile de teste de laborator, pneurile umplute cu azot au avut o scădere a presiunii cu doua treimi mai mică decât a celor umflate cu aer. Media pe lună a acestei scăderi de presiune a fost de 1.39 de procente, în timp ce anvelopele umplute cu aer au înregistat o pierdere de 2.13% .
„Cercetările arată că pneurile umflate în mod corect îşi pot prelugi durata de funcţionare cu până la 25% şi, de asemenea, scad consumul de carburant al maşinii cu până la 5%”, a declarat Mike Wise, şeful Kwik-Fit Fleet, o companie care oferă astfel de servicii.
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