A viral TikTok video showing a woman trying to check her car’s radiator fluid has become a warning about the dangers of fixing cars yourself. The video, posted by Georgia Lear on TikTok, has gotten over 66.3 million views and shows what can happen when someone opens a radiator cap on a hot engine. In the video, set to No Doubt’s song Just a Girl, a woman walks up to a car with its hood open. She pulls back as she turns the radiator cap, probably because the metal feels hot. When she finally gets the cap off, the system explodes. Hot liquid shoots up and out, hitting not just the woman but also the person filming, who runs away from the scene. Lear wrote “We’re just girls” on the video and later added “That was boiling water bro.” The video got thousands of comments, with many people making jokes about what happened. “I’m just a girl… who got a free chemical peel,” one person wrote, while others worried about burn injuries. One user named Chas shared their own story, saying “The hospital told my brother he had 2nd and 3rd degree burns on his face and chest from doing exactly this.” Why you should never open a hot radiator cap The danger comes from the pressure that builds up inside a car’s cooling system. When an engine runs, it makes a lot of heat that gets soaked up by the coolant. This makes the coolant get bigger and creates pressure inside the radiator. Car experts say this pressure can make the coolant’s boiling point go up by about 45 degrees above its normal 212 degrees. @ig..ig17 There’s been an update: That was boiling water bro… #justgirlsbeingirls #carbrokedown #shit #car #boilingwater ♬ Just A Girl – No Doubt When someone opens the radiator cap on a hot engine, all that pressure gets let out at once. This makes the super hot coolant boil fast and spray out hard, just like what happened in Lear’s viral video. People can get serious burns from both the hot liquid and the steam. Doctors say these kinds of injuries usually cause second or third degree burns on the face, chest, and arms. Safety experts say checking radiator fluid needs to be done carefully. The most important thing is to wait at least 30 minutes for the engine to cool down completely before trying to open the cap. Drivers should also wear gloves and safety glasses because radiator fluid can really hurt your skin. After the engine cools down, the cap should be turned slowly to let any leftover pressure out bit by bit. @ig..ig17 You really good at everything #fyp #braces #foryoupagee #2million ♬ Cant Go Broke (Remix) – Zeddy Will Even though radiator caps have warning stickers and car manuals tell you not to do this, these injuries still happen a lot. One medical study that looked at eight years of data found 68 cases of car radiator burns at just one hospital. Most of these injuries happened during summer and involved people taking the cap off an overheated radiator. Just like other viral accidents that have caused serious injuries, this shows that things that seem easy can actually be really dangerous. Lear has not said if the woman in her video got hurt, though she did say “Fixed it” when someone asked for an update, which seemed to be about the car and not the person.