While some coolants may have slightly different formulations leading to minor variations in operating temperature or efficiency, claims of dramatically lower operating temperatures are generally misleading. If a car is running hotter than normal, it's usually due to underlying issues like:
* Low coolant levels: The coolant needs to be at the correct level to efficiently absorb and transfer heat.
* Faulty thermostat: A malfunctioning thermostat might not open properly, preventing the coolant from circulating as it should.
* Radiator problems: A clogged radiator or a failing radiator fan can hinder heat dissipation.
* Water pump issues: A damaged water pump won't circulate the coolant effectively.
* Head gasket failure: A blown head gasket can introduce combustion gases into the cooling system, causing overheating.
Instead of seeking a "cooler-running" coolant, address any potential problems in the cooling system. Using a coolant with a higher concentration of antifreeze or a high-quality coolant is beneficial, but won't dramatically lower operating temperature if there's a system malfunction. A mechanic can diagnose and fix the underlying cause of overheating.
