The objective of the paper is to evaluate the Engine cooling performance of the light commercial vehicle by data acquisition. The data acquisition is done following Indian standard, IS: 14557:1998. Sometimes, the ambient temperature conditions and actual vehicle parameters may differ, then as mentioned in standard, thus making it necessary to go beyond standard conditions. The methodology of testing is to acquire data and compare the thermal behaviour in five different vehicle configurations. In the first case, a subjected vehicle was operated with a conventional fixed fan that is permanently engaged and a smaller radiator, which more or less resulted in overheating of the vehicle. Then in the second case, data is acquired with a viscous fan, bigger core radiator, fresh air cleaner. The viscous fan operates only when the coolant temperature goes beyond a specified limit. It gives a better cooling performance, lower cabin noise, and higher fuel efficiencies. In the third case, a fresh air cleaner is replaced with a clogged air cleaner, to simulate extreme dusty, off-road conditions like mining, where power and torque demand is maximum and the vehicle operates at lower vehicle speeds. In the fourth and fifth cases, experiments were conducted to check the actual performance of the vehicle on plain roads and hilly routes for a better driving simulation. The specific finding of the paper is that a vehicle may clear the cooling performance according to the standard requirements, but it may fail in the actual field conditions. So, a factor of safety must be considered while designing an engine cooling system, which makes it fit for worse field applications. Finally, the gathered data is used to upgrade the engine cooling management system.