15 Common Vehicle Maintenance Mistakes That Kill Your Car’s Value

If you're looking to cut car costs, you could actually be making a costly mistake by not keeping it properly maintained. While a trip to the mechanic might sound expensive, keeping your car maintained helps it to hold its value, which is a smart move for when you trade it in or sell it.  

In particular, don't skip the following auto maintenance tasks; doing so might cost you in the short and long term.

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Some people dump hot water on an icy windshield, hoping for a fast melt. But this could lead to a crack in the windshield. The rapid temperature change is not good for the glass.

According to Kelley Blue Book, don't be surprised if it costs more than $1,000 to fix that windshield.

Using inferior oil can prevent the engine's working components from getting proper lubrication, which can lead to failure.

So, follow what the owner's manual recommends for your car, especially if it calls for a specific viscosity to protect the engine.

The wrong oil could lead to a costly engine replacement, which, as we mentioned earlier, could cost thousands of dollars.

Refilling your gas tank isn't much fun, even if you're earning rewards on all those fill-ups. But letting your tank run down to empty too often can cost you.

Fuel helps to lubricate and cool the fuel pump. If too little fuel is in the tank, components in the fuel pump can wear more quickly. That can result in the need for a fuel pump replacement that could cost around $1,000, says Kelley Blue Book.

Brake pads typically last about 50,000 miles, although some need to be changed sooner. If you hear squealing or your car needs more pressure on the brake pedal to stop, bring it into the shop.

If you let brake pads wear too far, it could damage the rotors. According to Advance Auto Parts, that might cost you $300 in repairs per axle.

Soon after learning to drive, you probably heard about the importance of regularly getting the oil changed.

Still, many of us fail to keep on top of this task. Maybe we're busy, and sitting at the shop for an hour or so isn't high on our to-do list.

That is a big mistake, however. Changing your oil according to manufacturer recommendations — often between 5,000 and 7,000 miles — ensures the engine's components don't wear down too soon.

According to J.D. Power, replacing an engine can cost you $4,000 for a four-cylinder engine and $10,000 for a high-performance engine. Changing your oil is a relatively cheap way to avoid this major expense.

Failing to maintain proper tire pressure impacts the tires themselves and could lead to alignment problems.

Prices vary, but a set of four tires can run you $600 or more, according to Discount Tire. Using the air at a nearby gas station to keep your tires properly inflated is much cheaper and worth the time.

When cars overheat, it can lead to damage to the head gasket. If it happens often enough, you might blow the head gasket.

According to J.D. Power, that can mean a repair cost averaging $1,000 to $3,000. It's better to pay attention to the warning indicator and temperature gauge and take action sooner.

A car wash is an investment in making your vehicle look good, but it can also help to protect the vehicle's paint quality and overall value.

A buildup of salt, mud, debris, and chemicals from roadways can significantly damage the paint, creating a dull, less-than-new look. When it comes time to sell, your car will look worn and much older than it should.

According to J.D. Power, you could paint it, but that can cost anywhere from a few hundred dollars to $10,000 or more.

A flooded roadway is any street where you can't see the pavement. Driving through water in a car could mean damage to the cylinders.

Hydrolock — a condition in which water gets into the cylinders and damages the function of the pistons — is a costly problem. In some cases, the fix might require replacing the engine.

You might have to pay a few hundred dollars to get rid of the water, at the very least.

Keep the interior upholstery of your vehicle clean. Sand, dirt, and grease can cause significant damage if they build up.

Dirty shoes are particularly problematic because that material gets ground into the carpet in your car. If you can't get it clean, this interior damage can rob your vehicle of resale value.

Failing to start and run your car now and then can put your vehicle's health at risk.

To function well, cars need to run. When they don't, tires fail, batteries go bad, and the engine might struggle to fire up.

It's hard to put a dollar value on what that could mean, but the longer your car sits, the more the risk of damage grows. Some experts say you should aim to start your vehicle at least once a week and take it out for a drive every month or so.

If you see signs that your car is losing fluid, check it immediately.

Don't ignore these signs. For example, if your transmission leaks fluid, it could damage the transmission itself. According to J.D. Power, if the entire transmission needs to be replaced, it can cost you between $2,500 and $5,000.

Having your wheels properly aligned can lengthen the life of your tires. If you ignore this important piece of maintenance, the tires might wear unevenly.

That could mean you will need to replace two or even all four tires. Have the wheels aligned, especially if you notice the car pulling to one side.

Another way you risk uneven tire wear is to fail to rotate your tires. Tires wear differently depending on where they are located on the car, so it's best to move them around often.

Fortunately, there's a simple fix: Pay to have your tires rotated every oil change.

Even if you do everything on this list right, using an inferior, untrained, or uncertified technician for the repair might not pay off.

Cutting corners in this way puts your vehicle at risk. Make sure you bring your car to someone who knows what they are doing. If you don't, there's no telling how much it could cost you.

Keeping your car maintained helps it retain its value, which in turn can help you keep more money in your wallet. 

Set up a calendar to remind yourself when it's time for oil changes, tire rotations, alignments, and other services.

Preserving the value of your car in this way should result in a larger return when you trade it in or sell it later.