Modeling & Analysis of Factors Affecting Fuel Consumption Over the Life Cycle of a selec‎ted vehicle

12/22/2025 12:00:00 AM

The increase in fuel consumption an‎d component wear in vehicles is considered one of the most important factors contributing to reduced performance in internal combustion engines. In this study, with the aim of eva‎luating the four main factors affecting fuel consumption, including engine oil condition, tire condition, fuel quality, an‎d driving behavior, these parameters were systematically investigated. The results showed that engine oil consumption does not have a significant direct effect on the amount of fuel consumption. However, continued use of degraded engine oil leads to increased internal friction, reduced engine efficiency, an‎d a decrease in the service life an‎d health of engine moving components. Tire condition was found to result in approximately a 1% reduction in fuel consumption, primarily due to the decrease in rolling resistance. Nevertheless, this condition increases vehicle stability an‎d reduces safety risks. Driving behavior was identified as having the greatest impact on fuel consumption, such that aggressive driving patterns an‎d urban driving cycles involving frequent acceleration an‎d braking can increase fuel consumption by up to two times. Furthermore, the analysis of fuel quality indicated that the increase in fuel consumption resulting from the use of low-quality fuel can be significantly mitigated through appropriate driving behavior. On the other han‎d, opening all the windows in a car can increase fuel consumption around 0.6% an‎d according to this thesis the air speed would have a significant portion in fuel consumption that could be around 14%. Overall, the findings of this study demonstrate that improving fuel quality, regularly monitoring engine oil an‎d tire condition, an‎d correcting driving behavior play a key role in reducing fuel consumption an‎d enhancing vehicle maintenance performance.

رفتار رانندگي، كيفيت سوخت، استهلاك تاير، استهلاك روغن موتور، مصرف سوخت.

Fuel quality, Engine oil degradation, Tire wear, Driving behavior, Fuel consumption, Vehicle life cycle.

Mahyar Mohammadzade Ghassab

Amirhassan Kakaee