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Unexpected costs of skipping car maintenance

Mechanic and driver at auto shop
Mechanic and driver at auto shop
July 15, 2024

Keeping your car in top shape doesn’t have to be costly. In fact, those little maintenance tasks we often delay, like oil changes and tire rotations, can save you significant money and stress. Neglecting even a few hundred miles on a recommended service interval can lead to expensive repairs or breakdowns later.

Let's explore why staying on top of your car's maintenance is a smart move for both your wallet and your safety.

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Oil changes

Engine oil with funnel.

An oil change is a budget-friendly way to keep your engine healthy—and it’s a breeze compared to a full engine replacement! Skipping this routine service can have costly consequences down the line.

Regular maintenance costs

The average cost of an oil change ranges from $35 to $75.*

Consequences of neglect

Fresh oil lubricates parts, prevents overheating, and extends engine life. Skipping oil changes can lead to:

  • Engine wear and damage

  • Overheating

  • Oil sludge buildup

  • Reduced performance

  • Increased emissions

  • Engine seizure

Replacing an engine can cost between $5,000 and $10,000 based on estimates from Consumer Affairs.*

Tire rotations and swaps

Car wheels

Rotating your tires regularly is an affordable way to maximize their lifespan. It can also help you avoid situations like unexpectedly changing a flat tire on a busy highway.

Regular maintenance costs

The average cost of a tire rotation is $60 to $72.*

Consequences of neglect

Neglecting to regularly rotate your car's tires can lead to:

  • Uneven tire wear

  • Reduced traction and safety

  • Decreased fuel efficiency

  • Noise and vibration

  • Increased stress on suspension

  • Invalidated warranties

A new set of four tires can cost from $400 to $1,200, according to Consumer Reports, plus potential accident repair bills ranging from $1,000 to $5,000.*

Brake system checks and replacement

Brake set for cars

Costs will vary with your brake system, but whether it’s pads, rotors, or calipers, routine checks are vital for optimum braking performance and overall safety. Failing brakes can not only put you at risk, but also lead to expensive repairs and accident-related costs.

Regular maintenance costs

The average cost for a brake system inspection ranges between $88 and $111*, as reported by RepairPal.

Consequences of neglect

While paying around $100 for an inspection might seem expensive, it's far cheaper than ignoring worn brakes and potentially significant accidents. Neglecting worn brakes can lead to:

  • Noise and vibration

  • Reduced stopping power

  • Increased tire wear

  • Damage to brake components

  • Brake failure

According to AutoZone, replacing the pads, rotors, and calipers can cost between $300 to $800 on average, but may exceed $1,000.* However, accident-related vehicle repairs and costs due to brake failure can range from $5,000 to over $20,000, * as this hypothetical scenario shows:

John was driving his car on a busy highway when he suddenly realized his brakes weren’t responding. Despite his attempts to stop the vehicle, he collided with the car in front of him, causing a multi-car pileup. Costs incurred from the accident included:

  1. Vehicle repairs:

    • John's car: Front-end damage requiring a new bumper, headlights, and radiator: $2,500.

    • Other cars: Damage to two other vehicles involved in the pileup: $3,000.

  2. Medical bills:

    • John: Minor injuries treated in the emergency room: $1,200.

    • Other drivers/passengers: One passenger in another car required hospitalization for a broken leg: $5,000.

  3. Towing and rental car:

    • Towing: Cost to tow John's car and the other damaged vehicles: $400.

    • Rental car: Cost for John to rent a car while his vehicle is being repaired: $300.

  4. Legal fees and insurance:

    • Legal fees: Consultation with a lawyer regarding the accident: $500.

    • Insurance premium: Potential insurance premium increase due to the accident: $1,000 over the next year.

Total Cost: $13,900

This scenario illustrates how a brake loss accident can lead to significant financial burdens, emphasizing the importance of regular brake maintenance. This is a hypothetical example for illustrative purposes only. Actual costs and legal outcomes may vary based on individual circumstances and jurisdiction.

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Transmission fluid changes

Transmission fluid dashboard icon

Transmission fluid is vital for smooth gear changes and maintaining the health of your car's transmission. In newer vehicles, maintaining clean transmission fluid also helps you stay compliant with warranty requirements.

Regular maintenance costs

J.D. Power estimates the average cost of a transmission fluid change at $80 to $100.*

Consequences of neglect

Old transmission fluid fails to properly lubricate and cool the transmission, potentially leading to complete engine failure. Here are several related transmission issues:

  • Overheating

  • Reduced performance

  • Transmission wear and damage

  • Transmission failure

  • Loss of fuel efficiency

  • Contaminant buildup

Many vehicles include transmission fluid changes in their maintenance schedule, usually required every 30,000 to 60,000 miles. Repairing a failed transmission can cost between $2,000 and $5,000.*

Air filter replacement

Two different air filters

It's a small part, but a clogged air filter can make a big difference, and it’s one of the most affordable vehicle maintenance tasks. The air filter's primary purpose is to prevent dirt, dust, and other particulate matter from getting into the internal combustion engine and damaging its components.

Regular maintenance costs

A cabin air filter can range between $20 and $50 depending on the filter type, according to J.D. Power.*

Consequences of neglect

A clogged air filter chokes your engine's airflow, reducing performance and forcing it to work harder, which means burning more fuel. Other problems can include:

  • Reduced engine performance

  • Engine wear and damage

  • Poor air quality inside the vehicle

  • Increased tailpipe emissions

  • Dirty spark plugs

  • Reduced lifespan of engine components

A dirty cabin air filter can cause dust and other allergens to accumulate inside the car, which can be especially aggravating for allergy sufferers.

Coolant flush

Green engine coolant liquid

The cost of a flush pales in comparison to the cost of replacing a damaged radiator or facing major engine repairs. Coolant helps keep your engine from overheating, but over time, it breaks down. This service is vital for preventing engine damage and steep repair bills.

Regular maintenance costs

The average cost of a coolant flush is $373-$400, according to RepairPal.*

Consequences of neglect

Allowing coolant to age in your car can lead to several serious consequences:

  • Overheating

  • Corrosion and rust

  • Clogged radiator and passages

  • Poor heating performance

  • Coolant leaks

  • Reduced coolant life

  • Invalidated warranty

Repairing the radiator can cost $300 to $900 based on CostHelper data, plus up to $4,000 for severe engine repairs, according to CarCare.org.*

Driving with an empty gas tank

No gas

While not a scheduled maintenance task, avoiding constantly running your car on fumes can help your engine live a longer, happier life.

Regular maintenance costs

The average regular gas price in the United States is approximately $3.44 per gallon, according to Gas Buddy. Filling a 15-gallon tank would cost around $51.60.*

Consequences of neglect

Running your car on a nearly empty fuel tank doesn't just put you at risk of running out of gas mid-drive—it can also lead to serious and costly issues. Low fuel levels can trigger issues including:

  • Fuel pump damage

  • Reduced fuel pump lifespan

  • Air in the fuel system

  • Sediment in the fuel

  • Fuel filter clogs

  • Engine misfires and stalling

  • Increased condensation

  • Inaccurate fuel gauge readings

These issues can result in poor engine performance, reduced fuel efficiency, and costly repairs. Keeping your tank at least a quarter full can help you avoid these problems.

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Get roadside assistance coverage

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Regular maintenance is essential for keeping your car running smoothly and avoiding costly repairs. However, unexpected breakdowns can still occur. For added peace of mind, Dairyland® insurance offers optional roadside assistance coverage. This service can help you quickly and safely get back on the road if an unanticipated event leaves you stranded. Request a free quote today.

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The general information in this blog is for informational or entertainment purposes only. View our blog disclaimer.

*Data accuracy is subject to this article's publication date.

This document is made available by Sentry Insurance Company and its subsidiaries and affiliates (collectively “Sentry”) with the understanding that Sentry is not engaged in the practice of law, nor is it rendering legal advice. The information contained in this document is of a general nature, and neither that information nor the hypothetical loss example included in this document is intended to address the circumstances of any particular individual, entity, or set of facts. Legal obligations may vary by state and locality. No one should act on the information contained in this document without legal advice from competent and licensed local professionals. THE INFORMATION CONTAINED IN THIS DOCUMENT IS DISTRIBUTED BY SENTRY “AS-IS,” WITHOUT ANY WARRANTIES. SENTRY WILL HAVE NO LIABILITY TO ANY PERSON OR ENTITY WITH RESPECT TO ANY LOSSES OR DAMAGES CAUSED, OR ALLEGED TO HAVE BEEN CAUSED, DIRECTLY OR INDIRECTLY BY THIS DOCUMENT, REGARDLESS OF WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, TORT (INCLUDING NEGLIGENCE AND FOR PROPERTY DAMAGE AND DEATH), OR OTHER GROUNDS.