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Antifreeze and Coolant: What Do They Do?

Antifreeze and Coolant: What Do They Do?

Key Takeaways:

  • Radiator fluids are important to prevent engine overheating. 
  • Antifreeze is added to water to create a coolant solution that will lower the freezing point of the water and raise the boiling point.
  • There are two different types of coolant: traditional & extended-life.
  • It’s important to follow proper procedures when adding coolant to prevent damage. 
  • Lack of coolant checkups results in severe engine issues & seizures.

There are all sorts of radiator fluids out there – knowing a little bit about radiator fluid can favorably extend the life of your car and keep it running smoothly. So, what exactly is radiator fluid, and what does it do? Radiator fluid, also called coolant or antifreeze, is a liquid that helps remove heat from your engine. 

As your engine runs, it produces a lot of heat. NADA Guides state that you cannot run a car for more than five minutes without coolantThe radiator fluids circulate through the engine, absorbing the heat and then carrying it away to the radiator, where it’s cooled down. This process keeps your engine from overheating, which can lead to serious damage.

Now let’s talk about the two main terms we hear about radiator fluids: antifreeze and coolant. Although they are used interchangeably, there’s a difference between the two!

Now let’s talk about the two main terms that we hear when we talk about radiator fluids: antifreeze and coolant. Although they are used interchangeably, there’s a difference between the two! 

The Difference Between Antifreeze and Coolant

Antifreeze is a substance that helps to prevent engine overheating by regulating the flow of coolant. It’s an ethylene-glycol solution that prevents freezing (as the name ANTIFREEZE suggests). 

Coolant is a 50/50 mixture of antifreeze & distilled water. It’s a fluid that helps to transfer heat away from engine parts. 

While antifreeze is necessary for preventing engine overheating, coolant is necessary for keeping the engine at a consistent temperature. 

This mixture of antifreeze & water (called coolant) provides the best protection against overheating and freezing. However, it’s important to consult your vehicle’s owner manual before adding any fluids to your engine because the wrong mixture can do more harm than good.

What Are the Different Types of Coolant? 

There are two main types of coolant: traditional green coolant and extended-life coolant. 

  • Traditional green coolant is typically a mix of ethylene glycol and water.
  • Extended-life coolants use propylene glycol and include corrosion inhibitors. 

Extended-life coolants can last up to five years or 150,000 miles without needing to be replaced. Traditional coolants must be replaced every two years or 30,000 miles.

If you’re unsure which coolant to use, check your vehicle’s owner’s manual or ask a qualified mechanic.

What Do Different Colors of Coolant Identify?

Different coolant colors identify the chemical makeup of the coolant and how they should be used. The different colors can help you choose the right coolant for your car. 

  • Blue coolant is typically used in European cars.

  • Red coolant is typically used in Asian cars.

  • Green coolant is used in American cars.

What Are Some Tips for Properly Adding Coolant?

When adding coolant, it’s important to follow the proper procedure to avoid damaging your engine. 

  • First, make sure the engine is cool before opening the radiator cap. If the engine is hot, wait until it cools down before continuing. 
  • Once the engine has cooled down sufficiently, remove the radiator cap & slowly add the coolant to the radiator.
  • Be careful not to overfill it; the coolant should only come up to the level of the radiator opening. 
  • Once you’ve added the coolant, replace the radiator cap and start the engine. Let it throttle for a few minutes, then check the level again and add more coolant if necessary.

What Are Some of The Dangers of Not Keeping Your Antifreeze or Coolant Levels Up to Par, And How Can You Avoid Them Altogether?

Did you know that if your car overheats just once, it can cause irreversible damage to the engine? Not to mention, it can also cause the radiator and hoses to crack. And we all know how expensive car repairs can be. The best way to avoid all this is to simply keep an eye on your antifreeze or coolant levels and top them off when necessary. It’s a small price to pay for peace of mind and a healthy car.

  1. Your Engine Could Freeze Up

If your antifreeze or coolant levels are low, your engine could freeze and resist ignition. This is particularly dangerous in cold weather, as a frozen coolant in engine & radiator hoses generate internal stresses that can damage the engine block. Not only will this leave you stranded, but with a cracked engine that will need to be replaced!

To avoid this, check your antifreeze or coolant levels regularly and top them up if necessary.

  1. Your Car Could Overheat

When your antifreeze or coolant levels are low, your car could overheat. This is especially dangerous in hot weather, as an overheated engine is at risk of seizure. 

To avoid this, make sure to keep an eye on your temperature gauge and pull over if it starts to climb too high.

  1. You Could End Up with a Cracked Engine Block

You could also end up with a cracked engine block if you are careless about your coolant levels. This is because when the coolant freezes, it expands and puts pressure on the engine block. Over time, this can cause the engine block to crack!  

To avoid this, keep your antifreeze or coolant levels topped up year-round, especially in the winter. 

FAQs About Antifreeze and Coolant – Answered!

  1. How Often Should You Replace Your Antifreeze/Coolant?

Most carmakers recommend changing your coolant every 30,000 miles or every two years, whichever comes first. Extended-life coolant has a lifespan of 150,000 miles, but most traditional coolants last for a maximum span of five years. 

  1. What Are the Signs to Replace Your Coolant?

You can usually tell when it’s time to replace your antifreeze/coolant with its color. If it’s cloudy or rusty, it’s time for a change. 

You should also be on the lookout for leaks. A small leak might not seem like a big deal, but it can quickly lead to engine damage if left unchecked. So, if you’re due for a coolant change or suspect your coolant is leaking, take your car to a mechanic & have them check it out. 

  1. How Much Will It Cost You to Change Coolant?

The cost to change coolant depends on a few factors, such as the type of antifreeze and the amount you need. Generally, you must pay between $50 and $200 for a typical antifreeze change

Conclusion

Antifreeze/Coolant prevents your engine from overheating in summer and freezing in winter by lowering the freezing point of the water and raising the boiling point. It is important to keep your coolant fresh and at the correct level and to keep an eye out for leaks. 

Yuma Honda, serving Yuma, AZ, has the best car service center in Arizona. There are many benefits of dealership service centers over independent repair shops. If unaware of these benefits, come to our dealership and see for yourself! 

Whether you need radiator fluid change, coolant flush service, or full repair – we have expert mechanics to assess your situation and provide the best solution! 

Book your service appointment now!

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Honda Wins Seven Kelley Blue Book 2026 Consumer Choice Awards

Kelley Blue Book is a trusted name when it comes to valuing new vehicles and providing information about the different models available. KBB has developed the Consumer Choice Awards, which honors those brands and models that meet and exceed certain specifications. Honda was recently honored with seven awards for 2026, showcasing the brand’s commitment to excellence. more Best Overall Brand Honda was named Best Overall Brand and Most Trusted Brand by KBB. The auto manufacturer also received the award for Best Value Brand, proving that Honda models offer outstanding value and are trusted by consumers who are looking for dependability. Other awards Honda claimed include: Best Car Styling Brand Best Performance Brand Best Overall EV/Hybrid Brand Best In-Vehicle Experience Brand In total, Honda has received 44 awards from KBB for the Consumer Choice Awards, originally named the Brand Image Awards. Among these awards are ten honors for Best Overall Brand within the past 13 years. The manufacturer has also claimed 12 Best Value Brand awards in a row. These numbers are far above any other brand. The Consumer Choice Awards Kelley Blue Book uses a study that tracks model perception by customer behavior. It looks at over 12,000 new-vehicle shoppers each year. The study provides valuable information about what buyers look at when purchasing a new vehicle and which factors are most important. The main attributes considered are: Affordability Safety Interior layout Reliability/durability The awards cover both mainstream brands and luxury vehicle manufacturers. They consider traditional models as well as EV and hybrid vehicles and trucks. An Award-Winning Brand Honda takes home multiple awards from many events. While it continues to win as an overall brand, the different models get their own honors from various publications and organizations. For instance, the 2026 Honda Passport was named Best New Car by Autotrader. Honda Passport was listed as Best Value New Car with Cars.com for its 2026 Affordability Report and as a Best Car for Families by US News & World Report. Honda Ridgeline won these two awards in its category as well. The 2026 Honda Accord and Accord Hybrid receive the same honor from US News & World Report in their respective categories while the Honda CR-V was also listed on Cars.com’s report. Many of Honda’s models are designed with families in mind, which is why the Honda Accord, Passport, HR-V, and Odyssey received the honor of Best Cars for Families from Parents.com. US News & World Report named the 2026 Honda Accord and Odyssey as Best Cars for the Money while Gear Junkie considered the Passport as Adventure Vehicle of the Year. In fact, you’ll see almost all Honda models at the top of the list or close to it. The Honda Prelude, a newer model in the lineup, was listed as a finalist for North American Car of the Year. Choose Your Award-Winning Honda Model If any of these models catch your eye, you can check them out at Yuma Honda. We carry all the latest Honda vehicles in our new inventory. You can come in for a test drive to see which one is the right fit for your lifestyle. No matter which one appeals to you, it’s guaranteed to be an award-winner. If you live near Somerton, Fortuna Foothills, or Yuma, you can visit our dealership to find your next new vehicle. Contact us with any questions or fill out our application to get started.

New Honda Civic Hatchback

2025 KBB Best Value Resale Awards

When people need to estimate the value of a vehicle, they turn to Kelley Blue Book. The Honda brand has always been known for its reliability, but now, it’s clear that Honda models hold their value, too. Recently, Honda has won multiple accolades during the 2025 Kelley Blue Book Resale Value Awards, as models like the Civic, the Accord, and the CR-V find themselves far ahead of the competition. If you want to see what these models are like in person, then you can test-drive them today at Yuma Honda. more Why Does Resale Value Matter? If there’s one truth in life, it’s that you never quite know where life is going to take you. Protecting Your Investment: You should treat your vehicle like an investment. Almost every vehicle is going to experience some form of depreciation over time, but some models will keep more of their value in the long run. The Accord, Civic, and CR-V have all proven that they’re great for the long haul. Staying Flexible For Life’s Next Adventure: Having a model with good resale value gives you a certain degree of flexibility. For example, if you drive something like the Accord and you’re about to start a family. You can easily trade your model in for something more spacious, like the CR-V. Explore Honda’s Reliable Lineup of Cars If you’re looking for a sedan that will hold its value over time, then you’ve got plenty of options with the Honda brand. If you’re looking for something small and compact, then the Civic is a smart and practical choice. This model gets great mileage, and it's built up quite a reputation on the road, as drivers love the intense power that this sedan has to offer. If you need something a little bigger, then the Accord should be on your radar. This cozy sedan comes equipped with the latest tech, and if you opt for the hybrid powertrain, you’ll have up to 204 horsepower to work with. If you live near Fortuna Foothills or Yuma and you want to test drive either of these models, then you can stop by Yuma Honda today. Best Resale Value: Compact Car - 2025 Honda Civic and Civic Hybrid Best Resale Value: Midsize Car - 2025 Honda Accord and Accord Hybrid Find Your Family’s Next SUV When you’re shopping for your family, you have to consider a lot of different things. For example, you’ll need something that’s spacious so that every passenger is comfortable. You’ll also need safety features that you can count on, and it helps to have an efficient engine. The Honda CR-V offers all of these things while also equipping your cabin with some of the latest tech that the market has to offer. There’s a reason that this model is so popular. It delivers on all fronts, and it's reliable, so you’ll be able to count on it year after year. If you want to see if the CR-V is a good fit for your family, then you can stop by Yuma Honda today for a test drive. Best Resale Value: Compact SUV/Crossover - 2025 Honda CR-V and CR-V Hybrid Best Resale Value: Top 10 - 2025 Honda CR-V and CR-V Hybrid If you’re ready to see why the Accord, the Civic, and the CR-V are so popular, then you can head to Yuma Honda.

Effective Ways to Prevent Rust on Your Vehicle

Key Takeaways: Regularly wash and inspect your vehicle for early rust detection. Apply protective coatings and rustproofing treatments. Prioritize moisture control and undercarriage cleaning. Address scratches and dents immediately. Use high-quality, rust-resistant materials and parts. Seek professional advice for specialized rust prevention methods. Rust prevention for vehicles is crucial to maintaining your car’s longevity and aesthetic appeal. As your car gets exposed to various elements, the risk of rust becomes a significant concern. This article delves into practical and effective ways to prevent rust on your vehicle, ensuring it stays in top condition for years. Looking for the best in rust prevention for vehicles? Visit Yuma Honda for expert advice and solutions. Understanding Rust and Its Impact Rust, a form of iron oxide, occurs when iron, oxygen, and moisture combine. This can lead to structural weakness, unsightly damage, and decreased value in vehicles. Understanding the science behind rust is the first step in effective rust prevention for vehicles. Regular Vehicle Inspections Regular vehicle inspections are paramount in the fight against rust. You can take timely action to prevent further damage by identifying early signs of rust. Regular vehicle inspections should focus on areas prone to moisture accumulation and damage, such as the undercarriage and wheel wells. The Role of Protective Coatings in Rust Prevention Protective coatings offer a barrier against elements that cause rust. These coatings, applied to the vehicle’s body, shield against moisture, salt, and other corrosive substances. Incorporating protective coatings is a proactive approach to rust prevention for cars. Moisture Control Moisture is the enemy of metal, making moisture control critical in rust prevention for vehicles. Ensure your vehicle is stored in a dry environment and promptly address any leaks or dampness. Regularly check for trapped moisture in nooks and crannies, especially after washing your car or exposure to rain. Rustproofing Treatments Investing in professional rustproofing treatments can significantly extend your vehicle’s life. These treatments provide additional protection, especially for cars in regions with high humidity or those exposed to road salt. Rustproofing treatments are effective in vehicle rust prevention, safeguarding against surface rust and more severe corrosion. Undercarriage Cleaning Your vehicle’s undercarriage is highly susceptible to rust, primarily due to its constant exposure to road salts, dirt, and moisture. Regular undercarriage cleaning is essential in rust prevention for vehicles. It helps remove these corrosive elements and prevents them from settling and causing damage. Seasonal cleaning, especially after winter and rainy seasons, is essential. Timely Repairs of Scratches and Dents Scratches and dents are more than just cosmetic issues; they can be gateways for rust. No matter how small, exposed metal can quickly rust when left unattended. Addressing these imperfections promptly is a critical step in rust prevention for vehicles. Using touch-up paint or seeking professional help for more significant damages can go a long way in keeping rust at bay. Use of High-Quality Materials and Parts When repairing or upgrading your vehicle, opt for high-quality materials and parts. Cheaper alternatives might save money initially but can be more prone to rust. Quality parts, especially those with rust-resistant properties, play a significant role in rust prevention for vehicles, contributing to the overall durability of your car. Educating Yourself on Vehicle Maintenance Educating yourself about proper vehicle maintenance is invaluable. Understanding the best practices for cleaning, inspecting, and caring for your vehicle can significantly aid in rust prevention. Knowledge about the right products and techniques can make a substantial difference in maintaining your vehicle’s condition. Seeking Professional Assistance Sometimes, the best course of action in vehicle rust prevention is to seek professional assistance. Automotive experts can provide specialized treatments, advice, and solutions tailored to your vehicle’s needs and local environment. They can also spot potential problems that you might miss. Adopting a Regular Washing Routine A regular washing routine is pivotal in rust prevention for vehicles. Washing your car frequently helps remove dirt, road salts, and other debris contributing to rust formation. Pay special attention to cleaning the underside and wheel arches, where corrosive materials accumulate. During winter, increase the washing frequency to combat the effects of road salt. Utilizing Rust Inhibitors Rust inhibitors can be an effective chemical solution in the battle against rust. These products are designed to slow down or prevent the chemical reaction that leads to rust. Apply rust inhibitors to metal surfaces, especially in areas prone to rusting. They can be handy for older vehicles that may not have come with modern rustproofing. Prioritizing Proper Storage Proper storage of your vehicle plays a crucial role in rust prevention. Whenever possible, park your car in a dry, covered area. This minimizes exposure to moisture, one of the main culprits behind rust. If a garage or covered parking is unavailable, consider using a high-quality car cover for proper ventilation. Avoiding Prolonged Exposure to Saltwater Vehicles in coastal areas or those frequently exposed to saltwater face a higher risk of rust. To mitigate this, rinse your vehicle with fresh water after exposure to saltwater. This is particularly important for the undercarriage and wheel wells. Regular checks for salt accumulation can also aid in early detection and prevention. Incorporating Drainage Check-in Maintenance Adequate drainage is essential in preventing water accumulation, a key factor in rust formation. During maintenance checks, ensure that drainage holes in the doors, undercarriage, and other parts of the vehicle are not blocked. Clearing these areas allows water to escape, reducing the risk of rust. Embracing New Technology Advancements in automotive technology have introduced new methods for rust prevention. Products like electronic rust protection systems claim to offer a modern solution to combat rust. While opinions on their effectiveness vary, it’s worth researching and considering these innovative approaches as part of your rust prevention strategy. Conclusion In conclusion, effective vehicle rust prevention involves regular inspections, timely repairs, protective coatings, moisture control, and professional assistance when needed. These steps will prolong your vehicle’s life and maintain its aesthetic appeal and value. Remember, a little effort in maintenance can save you from costly repairs in the future. For more information and assistance keeping your vehicle rust-free, visit Yuma Honda today.