Review on 🌡️ PT Auto Warehouse R126 - High-Quality Radiator Cap, 16 PSI: Ensuring Optimal Cooling Performance by Justin Gomez

Let me start with a general comment on radiator caps. Too few Americans change their radiator caps regularly as preventative maintenance. After all, our manuals never talk about it. Well, just think about it. Most radiator caps, like the one in question, are designed to hold the precise pressure in your car's cooling system. The radiators heat to temperatures above boiling water and cool to temperatures as cold as Minnesota's coldest winters. This constant cycling between temperature changes, not to mention the constant spring pressure of the springs themselves, can only lead to fatigue of the springs and rubber seals in the covers. Most people only change these caps when they start leaking (or when replacing radiators). Well, if you checked the pressure threshold of the caps long before then, you will find that the caps no longer hold the pressure they were designed for, in this case 16psi. Why is it important to keep up this pressure? Well, the temperature of the coolant in your car should be slightly above the boiling point of water. The pressure on him will allow him. But there is an expansion that occurs when the coolant is heated. The cooling system is rated for a certain amount of this pressure, and the radiator cap is designed so that excess coolant resulting from expansion above a certain pressure will exit the cooling system into an "overflow tank" or reservoir and be sucked back into the system can become as it cools. If excess coolant is not expelled, the system will over pressurize and rupture the weakest link, usually a rubber hose, sometimes a thin or weakened spot in the radiator itself, or a gasket on the engine. Engineers decide what the pressure will be, and it's built into the radiator cap. A loose radiator cap will drain the coolant too early and reduce the efficiency of your cooling system as the coolant evaporates due to lack of pressure. It can also push out too much coolant, causing some of it to leak out of your "overflow tank". It can also cause some coolant to leak out of the coolant reservoir. In either case, the coolant cannot be recovered, which can cause air pockets to form in your cooling system, which can cause overheating and/or detonation, making the overheating worse. So back to that particular lid. What's so great about that? 1. Did you see the light green silicone seals? They hold their shape better and last longer than standard rubber. 2. Have you seen that it is made in Japan? It doesn't take an engineering degree to know first-hand that doing so means less chance of failure than if it did. China? 3. Have you seen the price? It's cheaper than half a gallon of coolant! I believe many Japanese car manufacturers recommend changing the coolant every 2 years. Why not change the cap for a quality cap at the same time?