Today's cooling systems manage heat loads instead of reacting to them after they happen. These intelligent systems will look at calculated engine load, throttle position and more to determine the best course of action. These real-time countermeasures help to keep combustion chamber temperatures at optimum levels for the best possible combustion event. The condition of the coolant has a direct relationship on the health of the cooling system. The coolant additive packages contain wetting agents or surfactants, which reduce surface tension and allow the coolant to transfer heat more efficiently. The cooling system has an important job in street cars, but it's even more critical in heavy-duty or high-strain applications. Whether we're talking about heavy-duty trucks, work vehicles, or sports cars which see routine, spirited or track driving, their cooling systems will need to hold up to even harsher conditions. If the goal is to keep temperatures in check, then we need to do everything we can to help the system to operate as intended.