10 DIY Car Maintenance Myths Debunked: Separating Fact from Fiction

Ever sat on a table at a bar where everyone there owns a car? The amount of advice on car maintenance that flows is usually overwhelming. Everyone seems to have an opinion on how to care for your car, with everyone trying to win you over.

Well, keep in mind, however, that the world of auto care is full of myths and misconceptions that can lead even the savviest car owners astray. But here’s the thing: knowing what’s true and what’s not can save you time, money, and a whole lot of headaches.

At Peach Cars, we’re all about empowering car owners and giving you factual information that not only saves you money, but ensures your car lasts for as long as it should – and today, part of that mission is debunking common car maintenance myths.

And if by the end of this article, you realise that your current car isn’t meeting your needs, maybe it’s time for a more fuel-efficient model or one with advanced features that make maintenance a breeze.

So, let’s dive into those car maintenance myths. We’ll spill the beans on what’s true and what’s just plain wrong. By the end of this, you’ll be a car care champion. 

Myth #1: You Can Do Everything Yourself

Let’s kick things off with a classic. DIY is a badge of honour for many. But let’s be real, not everyone is a mechanic. Trying to fix something you don’t understand can lead to more problems, more money spent, and a whole lot of stress. Some repairs require specialized tools and knowledge. And let’s face it, your time is valuable.

Sure, changing a flat tyre or replacing wiper blades is doable. But when it comes to engine issues, electrical problems, or complex repairs, it’s usually smarter to call a professional. Trust us, your car will thank you.

Myth #2: Older Cars Are More Reliable

“They don’t make ‘em like they used to,” right? Wrong. While older cars have their charm, modern vehicles are packed with technology and safety features. They’re also more fuel-efficient and environmentally friendly. Plus, car manufacturers have made significant improvements in reliability over the years.

Of course, there are exceptions to every rule. But generally speaking, newer cars are less likely to break down. And when they do, diagnostics are easier thanks to onboard computers.

Myth #3 You Need to Change Your Oil Every 4,800 Kilometres

For years, the 4,800-km oil change rule was gospel. But guess what? Things have changed. 

Modern engines and synthetic oils have changed the game. Most cars can now go 8,000 to 12,000 kilometres between oil changes. Some can even stretch it to 16,000 kilometres!

So, what should you do? Check your owner’s manual. It’s your car’s bible. It’ll tell you exactly how often to change your oil. Following this advice won’t just save you money – it’ll keep your car running smoothly for longer.

Myth #4: Premium Fuel Boosts Performance in All Cars

Heard this one before? It’s a common misconception that premium fuel will make any car run better. But here’s the truth: unless your car specifically requires premium fuel, you’re just wasting money.

Most modern cars are designed to run perfectly well on regular gasoline. Using premium when it’s not needed won’t improve performance or fuel economy. It’ll just lighten your wallet.

Stick to what your car’s manual recommends. If it says regular is fine, save your money for something else. Your car won’t know the difference, but your bank account will thank you.

Myth #5: You Need to Warm Up Your Car Before Driving

This myth is especially persistent in colder climates. But here’s the scoop: modern cars don’t need long warm-up periods.

In fact, idling for too long can be counterproductive. It wastes fuel and can even cause engine wear. The best way to warm up your car? Start driving gently after about 30 seconds.

Your engine warms up faster when you’re driving, and it’s better for the environment too. Win-win, right?

Myth #6: Dish Soap is a Good Car Wash Alternative

Ever been tempted to grab that bottle of dish soap when your car needs a wash? Think twice!

Dish soap is designed to cut through grease – great for plates, not so great for your car’s paint. It can strip away protective wax and leave your car’s finish vulnerable.

Instead, use a car-specific soap. It’s gentler on your paint and won’t remove the protective coating. Your car will thank you with a longer-lasting shine.

Myth #7 You Should Replace All Tires at Once

Here’s a myth that can hit your wallet hard. While replacing all four tires at once is ideal, it’s not always necessary.

If you have significant wear on just one or two tires, it’s okay to replace them individually. Just make sure the new tires match the others in size and type.

However, if you have all-wheel drive, replacing all four at once is best for even wear and optimal performance. Always consult your manual or a trusted mechanic for the best advice for your specific vehicle.

Myth #8: Engine Oil Additives Significantly Improve Performance

The shelves of auto parts stores are lined with miracle oil additives promising to boost performance and extend engine life. But do they really work?

In most cases, these additives are unnecessary. Modern motor oils already contain the additives your engine needs. Adding more can actually upset the delicate chemical balance of your oil.

Stick to high-quality oil that meets your car’s specifications. It’s all your engine really needs to stay healthy and perform well.

Myth #9 You Should Let Your Gas Tank Run Almost Empty Before Refilling

Some people swear by this practice, thinking it saves money. But running on fumes can actually cost you in the long run.

Your fuel pump relies on gasoline for cooling and lubrication. Running consistently low can cause it to overheat and wear out prematurely. Plus, sediment at the bottom of your tank can clog fuel lines and injectors.

Try to keep your tank at least a quarter full. It’s better for your car and gives you a safety buffer in case of unexpected delays.

Myth #10: Car Batteries Last About Five Years

While five years is a common lifespan for car batteries, it’s not a hard and fast rule. Battery life can vary greatly depending on usage, climate, and maintenance.

In hot climates, batteries might only last two to three years. In cooler areas, they could stretch to seven years or more. Regular check-ups can help you gauge your battery’s health and avoid unexpected failures.

Don’t wait for your battery to die before replacing it. Regular testing can help you catch issues early and avoid being stranded.

Verdict?

Debunking these myths is just the start of smarter car ownership. But remember, every car is unique. While these myth-busters apply to most vehicles, always consult your owner’s manual for specific advice. And when in doubt? Don’t hesitate to reach out to our professional team at Peach Cars. 

Give us a call today. Whether you want to discuss an upgrade or a vehicle inspection, we’ll be happy to help!