--- title: 'Don''t Buy a Used Car Before Watching This Video' source: 'https://youtube.com/watch?v=1PSdtStc5KQ' video_id: '1PSdtStc5KQ' date: 2026-07-28 duration_sec: 644 channel: 'Nerds de Negócios' --- # Don't Buy a Used Car Before Watching This Video > Source: [Don't Buy a Used Car Before Watching This Video](https://youtube.com/watch?v=1PSdtStc5KQ) ## Summary This video provides a comprehensive guide to buying a used car in Brazil, highlighting common scams and critical inspection points to avoid costly mistakes. The presenter emphasizes that while a new car is ideal, if buying used, following a thorough checklist can significantly reduce risk. ### Key Points - **Bodywork Inspection** [01:58] — Walk around the car checking alignment, gaps between panels, and door fit. Serious accidents can twist the monocoque chassis, causing chronic misalignment that can't be fixed. - **Exhaust Smoke Test** [02:50] — Check smoke color: white indicates head gasket problem, black means engine out of tune, blue/oily means burning oil. Also inspect inside of tailpipe for residue. - **Oil Dipstick Check** [03:17] — Pull dipstick; if oil is whitish and creamy (like mayonnaise), water is mixing in, indicating head gasket or cracked block. - **Spark Plug Reading** [03:46] — Remove a spark plug (if comfortable): black dry means rich mixture, white means lean or overheating, oily indicates oil in combustion. - **Tire Wear Analysis** [04:11] — Uneven wear indicates alignment issues or suspension damage from a collision. Tires are an X-ray of the suspension. - **Legal Document Inspection** [04:54] — Check for liens, judicial restrictions, or family disputes. Use specialized companies (cost R$100-200) to avoid losing the car later. - **Mileage Verification** [05:35] — Average is 12,000 km/year. Too-low mileage may mean odometer tampering or prolonged sitting, which degrades parts. - **Flood Damage Signs** [06:00] — Check for dried mud under carpets, in trunk, and wheel wells. Floods cause electrical corrosion that emerges months later. - **SUV vs Sedan Practicality** [07:59] — SUVs are often overhyped; they have higher fuel consumption and parking difficulty. Sedans can offer more driving pleasure for less money. - **Maintenance Cost Research** [08:51] — Some brands (e.g., premium) have extremely expensive parts. A timing belt can cost R$2000 vs R$500. Research before buying. ### Conclusion Buying a used car is always risky, but following this checklist reduces the chance of a bad deal. If possible, consider a new electric car for peace of mind, warranty, and lower running costs. ## Transcript used car market in Brazil is a minefield. There are flood-damaged cars The odometer has been tampered with, and the vehicle has a worst part is that most of these scams go unnoticed, even by lot of people here on the channel are in that phase, OK? Changing cars, wanting to save money, having to make the right choice that fits the budget. everything you need to know and check before closing a deal. These are can do and that can really save them. You have to spend a few decades losing save them. You have to spend a few decades losing money. make one point clear, which is the following, okay? Despite all the tips I'm if you can afford it, the best option will always be a brand new car. That's my history, you know it hasn't been abused, there are no hidden surprises, and it even comes even factory-made products can have defects . So now I want to give you a recommendation of what we have that's best on the market today. Unless you bio on the street, right? Those guys you see here are responsible for lowering the overall price of cars in Brazil. They arrived out of nowhere at a competitive price. So, the market, which was used to paying could get a futuristic and modern car for almost the same price. And not only that, Simplified purchase, with better installment options, financing, and spend way less paying for electricity than you do for you can see over there on the channel, in the now. So, petroleum derivatives, these cars are having a lot of problems right now, are only advantages to this situation. If you want to learn more about BOID's options, click the link in the description; scan what a coach is, which buy used cars who could be buying top-of-the-line electric cars instead. the time, OK? If you have the budget to make this investment, damn, it's totally worth it video on his channel explaining that it's worth it, right? Finally, moving on to used books, let's go to the guide. Starting with the first and most important part, the bodywork. So sit in the seat, the first thing you do is take a complete walk around the car and check the body alignment. What you're looking for is a door sticking out from the fender. There's a gap between the pieces that's larger close properly, or is there one that gets stuck, scrapes, or doesn't fit? If the car is going to be in a serious accident, right? They fixed it and straightened it out later. Minor bump, scratch, or dent from a parking lot. This is something every used car part of it. The problem is a serious collision. the monocoque chassis. What is this, Peter? Monocoque refers to the basic structural framework of the vehicle. It's like the car's skeleton. If the monocoque body twisted, it's over, man. You're going to have chronic misalignment [music], constant misalignment, OK? Parts that don't fit, doors that don't close properly—there's no permanent fix for that. Therefore, this body inspection is the most important of all. Second point, the because they are quick checks that give a reading of the engine's health without thermometer: the exhaust. Go to the back of the car, okay? And look at the color of the smoke and the look at the inside of the pipe , okay? If the smoke is very is wrong. This usually indicates a problem with the cylinder head gasket. This is an expensive repair. You'll spend the day after buying the car. If the smoke is very engine is out of tune. And if you run your the engine is burning oil. This is a sign of internal wear and tear. Seriously, you're going to maintenance later. According to the thermometer, the oil dipstick. Open the hood, pull out the dipstick, and oil has a whitish appearance, with little balls, and a creamy texture, like mayonnaise, it means water is getting into the crankcase. What is serious problem. It could be a punctured head gasket or a cracked engine block. It's the kind of car is worth, man. You wouldn't want that for yourself. Third thermometer: the spark plugs. If you know how to remove a candle, OK? If you don't know, search on YouTube, it's there, OK? Its color, the color of that spark plug, tells you the whole story of the engine. A black, dry spark plug indicates a rich fuel mixture. A very white candle indicates a poor mixture or overheating. A candle with an oily deposit you don't know much about mechanics, that's okay, right? Skip this one. But the first two, that, damn it, there's no excuse for you not doing them. You can do it, okay? Third tire is bald, anyone can tell, right? What matters is how the know that, Ped? Is the wear even across the entire tread, perfectly one side than the other? If the wear is uneven, the car has an alignment problem might just require a simple adjustment, OK? Beauty? But it could also damaged, that the car suffered a hard impact in a collision, right? Either some without proper maintenance. Dude, the tire is basically the X-ray of the suspension. Before looking at the shock absorber, spring, or control arm, check the tire; it will ruin everything. Fourth point, and this one surprises a lot of people, is the outside as well. Step outside the box, the frame, okay? the car, everything's great, perfect mechanics, all paperwork in order, and two months your door and takes the car away. What do you mean , Pedro? The guy who sold it to you got divorced from his wife, and the car was being used as collateral in the settlement. The vehicle seller, I don't know, she had a debt and the car was under lien. Or even worse, the happens. This happens more often than you think, okay? There are companies that specialize in document inspections that check if there are any legal actions judicial restrictions, financial issues, any kind of problem, man. You pay very little, like R$ 100 or R$200, and it can save you from losing your entire car, man. It's worth it, damn it, headache. Whether you're buying from a stranger or a store, always do this research. Fifth point, be wary of mileage that's too low, man. Who's doing the math, man? around 12,000 km per year. An average. If the car is 5 years old, it should have around 60,000 km on it. If it has much less than that, or the car has been sitting because stationary parts dry out, the rubber cracks, right? The fluid is degraded or the odometer has been tampered with. The guy pushed down that little number there. And the special voltage most common and hardest to detect scams. A car that has been driven through a and out for the first few months. electrical components, corrodes wiring, rots insulation, you understand? Then the defects gradually become apparent . The electronic control unit burns out, fortune to replace. You'll spend it later, right? At first, man, it's all good, my car is great. Then it starts one by one. And visually, many times man. There have been cases of professionals with decades of experience buying full inspection. What's happening is frightening . So, if the car is from an to be true, if it's coming from a city that recently flooded, ease the tension, try lifting the trunk carpet, look under the seats, see dried mud marks in places that nobody normally cleans, right? type wheel wells. Because, honestly guys, sometimes you fall into the trap of saying, right? You get what you pay for in the long run. You know this, right? If you take all your money electric one for example, you eliminate all that worry . That's it, no need to go through that. You know you have a 6-year warranty on the car, you know you have an 8- Bio, it will cost less per month in gas. When you put everything down on paper, man, this is more advantageous, right? A but it's true, man. Many people don't do this calculation and end up getting lost along the way. Besides that, you get more comfort, much more technology, infinitely less hassle, and the security of knowing that the warranty is valid at the dealership for years. Everything happens, like 8 years from now, you're covered. Many people will even warranty expires. Damn dude, seriously, I have a biodi, I'm not recommending have it, it's in São Paulo, it's not here in the United States. I really miss having n't any. But in São Paulo, it's the car that I even traded in for a Mercedes that I used to have. Best trade I've ever made, by far . I'm very happy. Because she's the one driving, right? But she's very happy because we really enjoy gas, no more spending on maintenance, there 's nothing left, man. It's surreal how I'm emphasizing it again, man. Sit down calmly, put all the costs down on , okay? Think about it: you're going to keep the car for at least 5 years. The bill and sixth point, and this is more of a financial tip than a mechanical one. Think SUVs have become a craze in Brazil, right? Everyone wants an SUV, but the truth is, the automakers push SUVs because their profit margin is much higher. The Corolla than the Corolla Sedan. And do you know how much taller the Cross is than the sedan? 15 taller the Cross is than the sedan? 15 mm, my brother. 15 is literally nothing, thinking they're getting a superior car. Look, I'm driving an SUV. And in everyday life real nightmare. It takes half an hour maneuvering in a shopping mall, occupies two parking lot owner charges double, fuel consumption is higher because the car is city you don't even use 10% of the really need it for dirt roads, for example, to haul cargo or for off-roading, the R sedan will give you more driving pleasure for less money. But not in the car manufacturer's interest. Seventh point, maintenance cost. I'm talking business deal and financial ruin. Some cars are beautiful, comfortable, have first defect can lead to absurd losses. There are some brands here, replace a simple timing belt , which costs around R$ 500. , which costs around R$ 500. belt on an old car before. And if you think I'm exaggerating, do your own research, fall in love with a premium brand at a tempting used car price, do the average maintenance cost, join forums, ask in specialized workshop and ask how much a complete service costs. Listen, the car isn't taxes the government will rip you off, okay? It also includes what you'll spend cheapest car to buy is the most expensive in the long run. Keep in mind, my friend, that buying a used car is always a risk. So, by following but you at least reduce it, right? It reduces the chance of you having a problem. and the information. So, if you can, take a trusted mechanic, get the all that, man, stay humble and know that something unexpected can happen. The , OK? But obviously, the ideal world is for you to pay for a brand new, pristine car that's all yours, right? I even made a video about the difference between an electric car and a gasoline car, which one is more worthwhile in terms of cost, and I did the so you can see, you'll realize the difference is absurd. And don't forget, OK? description to learn more about Bod's know someone who's thinking about buying a used car, send it to that her from a serious loss. And comment below if you've ever been in a situation like this when any extra tips that could have saved you from a scam, you know? Leave a tips to save your money, so you can make money online. I've been making money here, not on YouTube, but on the internet since 1999. Thanks for but on the internet since 1999. Thanks for that, guys. Until next time. Thanks, bro.