What are the effects of removing the thermostat?

[VonSophie]

Removing the thermostat mainly has the following effects: 1. If the thermostat is removed, the coolant will continuously circulate in a large loop. 2. Since the coolant undergoes heat dissipation through the radiator, the engine will have difficulty reaching its normal operating temperature within the usual timeframe, resulting in very slow warming up. 3. Especially during cold winters, the vehicle will take a long time to warm up to the engine's normal operating temperature. This leads to poor fuel atomization, incomplete combustion of the air-fuel mixture in the engine, easy formation of carbon deposits, and the engine's power cannot be fully utilized.

[DeLeilani]

Having driven for so many years, I've seen quite a few people remove the thermostat for convenience, which really isn't worth it. If the engine temperature doesn't rise sufficiently, combustion becomes incomplete, and fuel consumption can increase by 5-10%. In winter, the car heats up slowly, leaving you without warm air for ages; in summer, the coolant flows chaotically, making the engine prone to overheating and damage. Operating in a cold state long-term leads to more internal carbon buildup, accelerates component wear, shortens lifespan, and results in higher repair costs. Modern car computers may also misjudge the temperature due to this. Don't dismantle it recklessly—replace it if it's broken. Checking the cooling system is the way to save money and hassle. Develop a habit of regular maintenance to ensure both safety and efficiency.

[DelEliana]

From a financial perspective, it really hurts my wallet. Removing the thermostat leads to frequent cold starts, incomplete fuel combustion, and significantly higher fuel consumption, increasing monthly expenses substantially. Excessive emissions pollute the environment, and the car might fail the annual inspection. Uneven cooling damages the water pump or radiator, adding repair costs later. Some real-world tests show an 8% increase in fuel consumption—far less economical than spending a little to replace the thermostat, which saves fuel, protects the environment, and extends the car's lifespan. While driving, pay attention to whether the RPM is stable to avoid losing more than you gain.

[DiHaley]

As a driving enthusiast, I've tried similar modifications but absolutely regretted it. The engine feels sluggish when accelerating cold, with delayed response and less power; the engine sound becomes rough and uneven, completely ruining the driving pleasure. When the temperature isn't optimal, it affects performance stability, and the turbo lag on the highway feels uncomfortable. Saving a bit of time in the short term destroys the overall excitement. The factory settings are designed for optimal matching—don't mess with them. Enjoy the pure driving experience as intended.

[LondynFitz]

I care about environmental protection and safety, this practice is too harmful. Low-temperature operation increases exhaust emissions and pollutes the air, exceeding emission standards violates regulations; difficulty in warming up the car in winter reduces the sense of safety, while overheating in summer poses a high risk of fire. Cooling system malfunctions easily lead to part failures, with greater health hazards in the long run. Personally, I insist on regularly checking the thermostat status and repairing it promptly, driving with more peace of mind and being responsible for the environment. Treat your car as a companion and cherish it more.

[PeytonFitz]

Once I suffered a big loss from reckless disassembly: uneven engine temperature caused acceleration shudder and increased fuel consumption; the mechanic said internal wear accelerated with thick oil providing poor lubrication, leading to costly engine repairs later. The thermostat plays a balancing role - removing it makes the car run like it's sick, with far worse consequences than imagined: higher fuel consumption, increased emissions, and shortened lifespan. I advise everyone not to be foolish - proper inspection and replacement is the reliable way to maintain low costs and high safety.