Just because your mechanic’s too nice to make a scene doesn’t mean you’re not doing things that raise their blood pressure.
Car owners have bad habits they’re unaware of or don’t care to address. This leads to problems that become your mechanic’s problems. If you want to keep things civil between you and the person you rely on for vehicle maintenance, avoid these 16 bad habits.
Ignoring Dashboard Warning Lights

Although some drivers may be tempted to ignore dashboard warning lights, it’s just asking for trouble. This is especially true if those lights are blinking or flashing. Don’t allow a potentially small problem to grow into a major problem costing you thousands down the road—get those warning lights checked by your auto mechanic ASAP.
Using the Wrong Fuel

Another mistake some drivers make that upset their mechanics is using an incorrect fuel grade. Sure, you might save some money with regular fuel, but you could rack up a considerable repair bill if your engine needs to be rebuilt or replaced. If the automaker states the car needs premium fuel, it’s not just a recommendation—it’s a requirement.
Skipping Routine Maintenance

Failing to do routine car maintenance is asking for trouble. Your mechanic isn’t a magician. Delaying important maintenance and repairs could damage your car, costing you an arm and a leg.
Allowing the Car to Run on Fumes

Allowing your car to run on fumes—letting the fuel level decline to almost nothing—isn’t a wise strategy. Still, breaking down in the middle of nowhere isn’t the worst thing that can happen. You could burn out your fuel pump, which costs anywhere from $300 to $500 to replace. A good rule is to top up your tank when it reaches one-fourth of its capacity.
Ignoring Odd Sounds

Auto mechanics also hate when clients ignore strange sounds. If your car starts to make odd noises, don’t ignore them. That weird rattling sound from under the carriage could mean part of the exhaust system has broken free. Waiting for a strange little sound to grow into an orchestra of grinding metal before you address it isn’t good for your wallet or your mechanic’s patience.
Riding the Brakes

Premature brake pad wear is the likely outcome if you commit this mistake. Although rookie motorists often do it, even experienced drivers make this mistake. Your braking system deserves better.
Speeding Over Potholes

Some roads are worse than others. It’s not always smooth driving. But motorists who routinely drive over potholes at full throttle aren’t doing their vehicle’s suspension any good. In addition to suspension systems, motorists who drive like speed demons over potholes can ruin their rims and tires.
Packing Too Much Weight

Problems with the suspension system, tires, and brakes are possible if you push your vehicle beyond its limits while carrying a large payload. If you need something capable of transporting some serious weight, consider getting a truck or SUV.
Neglecting to Change the Oil

Don’t be the sort of car owner who drags their feet when it comes to oil changes. Some wait so long that the engine oil has the color and consistency of molasses. That’s the perfect way to shorten the lifespan of the engine.
Ignoring Tire Pressure

Low tire pressure increases braking distance. It also compromises steering and handling, reduces the longevity of your tires, and increases the risks of a tire blowout. Check the tire pressure at least once a month for the sake of you, other motorists, and your mechanic.
Doing DIY Repairs Improperly

While good mechanics won’t discourage customers from tackling basic maintenance tasks independently, they won’t be happy if you mess things up. Your mechanic doesn’t want to take on a job that would have been easier had you not made matters ten times worse.
Failing to Clean the Vehicle

A filthy vehicle is a turnoff. If you want a mechanic to help you, don’t leave the interior of your ride looking and smelling like a landfill.
Letting Your Vehicle Sit Too Long

Parking your vehicle for an extended period can cause problems. A dead battery, seized brakes, or wildlife nesting under the hood are all too common problems. Your mechanic is going to be scratching their head, wondering why you didn’t start it up once in a while.
Ignoring Small Leaks

It’s best not to ignore any leaks, no matter how small or insignificant they may appear. If you can’t diagnose the problem and fix it yourself, take your vehicle to an auto repair shop.
Overlooking Brake Fluid Changes

Your vehicle’s braking system doesn’t just apply to the rotors, brake pads, and calipers. Remember the brake fluid as well. In addition to ensuring the brake fluid level remains consistent, you must also change the brake fluid periodically.
Failing to Communicate

Mechanics know how to fix vehicles. But they can’t read your mind. So, if there’s something they should know, communicate it clearly and promptly—it’s in both of your best interests.
Avoid These Errors That Drive Mechanics Nuts

If you have a good mechanic, count yourself lucky. But don’t take yours for granted. Although they’re happy to take care of your vehicle, making any of the 16 mistakes mentioned above will make their job harder and cost you more money.
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