What is the sign of insufficient engine coolant?

[VonJade]

The insufficient engine coolant warning light displays a thermometer shape, and there is also a kettle-shaped indicator. The functions of antifreeze are introduced as follows: Cooling function: Cooling is the basic function of coolant. The engine generates a large amount of heat during operation, with 60% of this heat being dissipated into the surrounding space through the cooling system. Water and methanol coolants have low boiling points and are prone to boiling. If the vehicle operates under conditions where the coolant is boiling, even for a short period, it can cause engine damage or even complete failure. Anti-scaling function: The coolant should minimize the formation of scale during circulation to prevent clogging of the circulation pipes and affecting the heat dissipation function of the cooling system. In summary, one should be cautious when selecting and adding coolant.

[LeHarper]

Yesterday I noticed a small red teapot symbol lit up on the dashboard and immediately pulled over to check. This Aladdin's lamp-like icon is actually the coolant level warning light - definitely not something to ignore! When I popped the hood, I found the auxiliary tank's water level had dropped below the MIN line, so I quickly topped it up with half a bottle of distilled water as an emergency measure. Later I learned that long-term mixing of different colored antifreeze can create sediment that clogs the pipes - no wonder it was depleting so fast. Now I always keep a small bottle of OEM coolant in the trunk and check the fluid level every couple of months.

[OBrooke]

Last time I was driving, the temperature gauge suddenly shot up to the red zone, which really scared me. I immediately turned off the engine and called a tow truck. The mechanic pointed at the coolant reservoir and said it was completely empty. Now I've learned my lesson: whenever I see the red thermometer icon light up on the dashboard, I stop the car right away. When washing the car, I casually wipe the expansion tank - seeing the orange or green liquid line through the plastic shell is the safest. If I notice the fluid level is below the midline before a long trip, I definitely go to the auto parts store to top it up first, to avoid overheating on the road.

[MacRobert]

See that translucent plastic tank on the left side of the engine bay? When the engine is cold, the pink fluid inside should be between the MIN and MAX marks, slightly above the middle. Last Wednesday, I checked and found only a tiny amount left at the bottom, so I topped it up with three cans' worth of coolant. An experienced driver taught me a trick: after starting the engine and waiting for the fan to kick in, squeeze the coolant hoses a few times. If you hear bubbling sounds, it means there's air trapped inside. And whatever you do, don't try to save money by mixing in tap water—it'll cause scaling and clog up the radiator!

[MatthewFitz]

Once, on my way to pick up my child from school, a warning light with a wavy line and a thermometer icon lit up on the dashboard, and the car computer started beeping. I immediately pulled over, turned on the hazard lights, and felt the engine hood—it was scalding hot. After calling the insurance company, I learned it was the low coolant warning. Now, every month, I take my child to perform a car 'check-up': she uses a flashlight to check the fluid level in the white plastic reservoir, while I inspect the oil dipstick. Before winter, I always switch to -35°C antifreeze to ensure the safety of my whole family.

[LeLena]

After driving through the heavy rain the day before yesterday, a symbol resembling a test tube with steam suddenly popped up on the dashboard. I pulled over and opened the hood, only to find the coolant reservoir completely empty! I temporarily poured in some bottled water, and the temperature gauge returned to normal. Now, every morning before starting the cold engine, I squat down to check the auxiliary coolant tank to make sure the green liquid covers the 'min' line. Since modifying the car with a turbocharger, it indeed consumes more coolant—about half a liter every month. Looks like I'll need to upgrade to a larger auxiliary coolant tank next time.