The aim of the research is to investigate the ability of improving the vehicle safety, performance, and reduce operating coast by using nitrogen inflated tires. In this study, three cases were proposed to study the effect of Nitrogen Tires on Car Vibration and Fuel Consumption. The study was conducted according to the three cases; filling the tires with air only, 50% air and 50% nitrogen and nitrogen only. When adding 50% of the nitrogen with the air to the tires, it reduced the vibration velocity to 10% at 60 km/h, 6.6%at 80 km/h and 7.5% at 100 km/h. Also when filling tires with nitrogen, it reduced the vibration velocity to 28.4% at 60 km/h, 23.6% at 80 km/h and 22.7% at 100 km/h. The decrease in fuel consumption for the addition of 50% of the nitrogen was 4.05% while the addition of nitrogen by 100% was 6.1%.

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