Blog

When you need a repair, the type of parts used significantly impacts the quality of the repair. There are two main types of parts: Original Equipment Manufacturer (OEM) and aftermarket. As your Buick dealer, we want to tell you more about these parts and why OEM parts are the best choice for all your repairs. They're High-quality OEM components are designed and built to the same high-quality standards as the original parts on your car. They come off the same production lines and are built by the same manufacturers. The only real difference is that OEM components were chosen as replacement parts rather than used to build another Buick. This also means they have an identical lifespan to the parts they replace.​​​​​​​​​​​​​​​​ Aftermarket parts aren't made to the same standards. They are cheaper than OEM components, but the reduced price comes with hidden future costs. They're made from lower-grade materials, reducing their potential longevity and making them more prone to break or fail than OEM components. If an aftermarket part fails, it can also lead to damage to other components. more They're Safe All the components in your Buick undergo rigorous testing to ensure they work correctly. OEM components meet these same national and international safety standards, which gives you peace of mind knowing they won't let you down. They're designed to work with all the other components in your vehicle, and they will always fit perfectly. Aftermarket parts aren't designed or built for your vehicle. They're designed to fit a wide range of different vehicle makes and models. This means that compromises are made in the part's manufacture so they can theoretically fit this range of vehicles. Aftermarket parts generally must be adjusted to fit your vehicle. These adjustments can lead to safety and reliability problems. They Have Warranties All OEM components carry warranties, and if an OEM component fails within its warranty period under normal usage, it will be replaced at no charge. This is possible because they're built to recognized standards and have been extensively tested. We also provide a warranty on all our labor due to our technician's high standards of training and experience. In the very unlikely situation of warranty repair, your Buick can be repaired at any Buick dealer. Aftermarket parts don't carry a warranty. As we've seen, they're not specifically designed or tested to work on your Buick. This makes it impossible to estimate an aftermarket part's longevity with real precision. A repair shop may give a warranty on their labor, but the repair would have to be performed by the original repair shop. These are just some of the reasons why OEM components are the best choice for your repair. Contact us today at Earnhardt Buick GMC in Mesa, AZ.

Finding a daily driver that has the golden trifecta: sleek looks, excellent fuel economy, and tons of comfort, is just about as easy as finding a hen with teeth. The 2024 Buick Envista not only effortlessly ticks all those boxes, but being a subcompact SUV, also comes with lots of passenger and cargo room, making it an excellent fit for most people. Here's what you need to know about the sleek Buick Envista. Our Favorite Features of the 2024 Buick Envista Stylish Profile With a streamlined, coupe-like silhouette, characterized by a sloping roofline, trim waist, wide stance, bold front grille, and futuristic LED headlights, the Envista cuts an incredibly sophisticated and elegant figure. It also looks quite the athlete, too, thanks to its aerodynamic lines. This allows the small SUV to be quite the head turner wherever it graces its presence. However, this design serves more than to capture attention. It ensures the Envista remains nimble and fuel efficient. more Exceptional Performance, Fuel Economy, and Handling A turbocharged 1.2-liter inline-three generating a sprightly 136 ponies and up to 162 pound feet of torque, combined with a lightweight aerodynamic frame, makes the Envista a remarkably quick SUV. Its perky acceleration allows it to get to 50 MPH in just 6 seconds, meaning it can get to and maintain highway speeds comfortably. What's more, your wallet will be glad to know that the Envista is anything but thirsty, boasting an off-the-charts EPA-rated fuel economy of up to 32 MPG on the highway. Another Envista feature that makes it such a delight to live with is its exemplary handling. Featuring precision-tuned power steering, firm brakes, and a fully independent suspension system for excellent bump absorption, the 2024 Envista feels confident and nimble to the driver and safe and comfortable to the passengers, making each ride an experience to look forward to. Spacious and Upscale Interior Despite its sleek, coupe-like sloping roofline, the Buick Envista is roomy, with up to 100 cubic feet of passenger volume. With 54 cubes in the front and 46 cubes in the back, it can accommodate five six-foot adults comfortably. Cargo space is also abundant inside the Envista, thanks to 21 cubic feet of space behind the rear seat, and up to 42 cubic feet of cargo-carrying capacity with the rear seat folded down. Tons of Cutting-Edge Technologies The Envista comes with a plethora of technologies to ensure you stay safe and connected. To help you stay in the loop and entertained, it features an 11-inch infotainment touchscreen with wireless Apple CarPlay and Android Auto connectivity, satellite radio, and available Wi-Fi hotspot. Contact us today at Earnhardt Buick GMC in Mesa, AZ to schedule a VIP test drive.

The 2024 GMC Terrain is a small SUV that delivers a big performance. From its strong engine to the assistive safety functions, there are so many reasons to love the latest Terrain model. We're exploring the new Terrain and some of its features, giving you a closer look at this durable new vehicle. Engine Specs The 2024 Terrain comes with a 1.5L Turbo 4-cylinder engine and a 9-speed automatic transmission. This engine boasts 175 horsepower and 203 lb.-ft. of torque with Direct-Injection and Variable Valve Timing. Exterior Design The GMC Terrain has an acoustic laminated windshield that blocks out outside noises to keep your cabin quieter and relaxing. The deep-tinted rear glass protects your passengers and interior elements from the sun's rays while keeping your cabin at a cooler temperature. LED headlamps and signature tail lamps keep your path illuminated, no matter how dark out it is. Your headlamps are automatic, turning on and off according to the surrounding natural lighting. more Interior Elements The 2024 Terrain has roomy seating for up to five passengers with a 60/40-fold-flat rear set for increased cargo space. The front bucket seats have 4-way manual adjustments that provide optimal comfort while the digital Driver Information Center showcases important insights, such as mileage, fuel levels, and outside temperature. Connectivity Options Your 2024 Terrain has Wi-Fi hotspot capability, allowing you to use the internet on up to ten devices within fifty feet of your vehicle. With wireless Apple CarPlay and Android Auto, you can sync your smartphone to your SUV for phone calls, texting, and audio streaming. These features are accessible on the 7-inch diagonal GMC Infotainment System. When you purchase a new Terrain, you'll get a 3-month Platinum trial subscription to SiriusXM radio. Listen to all of your favorite music and radio shows with crystal clarity thanks to the 6-speaker audio system. Safety Features The new GMC Terrain features the GMC Pro Safety package, which has six different assistive driving functions to keep you safer behind the wheel. The basic Pro Safety package includes: Lane Keep Assist with Lane Departure Warning Automatic Emergency Braking Forward Collision Alert Front Pedestrian Braking Following Distance Indicator IntelliBeam There is an available GMC Pro Safety Plus package, which includes all of the basic features along with Lane Change Alert with Side Blind Zone Alert and Rear Cross Traffic Alert. Other notable safety features in the Terrain include Passenger Sensing System, Teen Driver, StabiliTrak, and Hill Descent Control. The best way to learn about the new GMC Terrain is by experiencing it in person. Visit Earnhardt Buick GMC in Mesa, AZ to see the latest GMC models, including the 2024 Terrain, in person.

Meet the workhorse redefined: the 2024 GMC Sierra 2500 HD, designed for those who demand unparalleled strength without sacrificing sophistication. Our Earnhardt Buick GMC in Mesa, AZ, proudly introduces this epitome of power and luxury, engineered to tackle the toughest tasks with ease while enveloping you in advanced comfort and technology. Unmatched Power and Performance At the heart of the 2024 GMC Sierra 2500 HD lies a testament to GMC's commitment to power and reliability. This heavy-duty truck is equipped with advanced engine options, including a formidable turbo-diesel that offers exceptional torque and towing capacity. Whether it's hauling heavy loads or navigating rugged terrains, the Sierra 2500 HD performs with unwavering confidence. Its precision-engineered transmission and robust chassis are designed to handle the demands of any job site, making it the ultimate tool for the heavy lifter. more Advanced Technology and Comfort GMC understands that strength should come with sophistication. The 2024 Sierra 2500 HD is a sanctuary of innovative technology and luxury. Inside, drivers and passengers are treated to a spacious and refined cabin, featuring premium materials and cutting-edge infotainment systems. With features like advanced connectivity, intuitive navigation, and comprehensive safety technologies, the Sierra 2500 HD ensures that every journey is as enjoyable as it is productive. It's a heavy-duty truck that doesn't compromise on comfort, making it perfect for those long days on the road or at work. Conclusion The 2024 GMC Sierra 2500 HD is more than just a powerful vehicle; it's a reliable companion that brings strength, sophistication, and safety to every task. At Our Earnhardt Buick GMC in Mesa, AZ, we're excited to showcase this remarkable truck in our New Inventory. We invite you to experience the difference for yourself and see how the Sierra 2500 HD can elevate your heavy-lifting needs. Our team is here to provide you with all the assistance you need, from exploring your options to finding the perfect model for your lifestyle. Contact us today, and let's start your journey with the GMC Sierra 2500 HD—a truck that's built to lift, built to last.

Unveiling the Future: GMC's Iconic HUMMER Goes Electric Hey there, fellow car enthusiasts! Buckle up because we're diving headfirst into the future with the 2024 GMC HUMMER EV. Yeah, you heard it right – the iconic HUMMER is going electric, and it's a game-changer. I stumbled upon this electrifying news on the GMC website, and let me tell you, it's got me buzzing with excitement. Unleashing Electric Power with Style First things first, imagine the beastly silhouette of a HUMMER, but now picture it gliding down the road silently, emitting nothing but good vibes. That's the magic of the all-new electric HUMMER. No more revving engines, just pure electric power propelling you forward into the future. more Raw Power: 830 Horses Under the Hood Now, let's talk numbers – and no, I'm not throwing complicated jargon at you. This bad boy packs a punch with a jaw-dropping 830 horsepower. That's right, 830! I don't know about you, but I'm already envisioning the thrill of hitting the accelerator and feeling that electric surge. No More Range Anxiety: 300+ Miles of Pure Freedom But hold on, it's not just about power; it's about going the distance too. The HUMMER EV boasts an impressive 300+ miles of electric range. Say goodbye to range anxiety because this electric SUV has got your back for those long road trips and spontaneous adventures. Hands-Free Adventure: Super Cruise Technology One thing that caught my eye is the Super Cruise technology. It's like having a co-pilot, minus the backseat driving. This hands-free driving experience is perfect for those lazy Sunday drives or when you just want to relax on your daily commute. It's the future, and it's here to make your life easier. Crab Walk: Navigating Tight Spots with Ease Oh, and did I mention Crab Walk? Yeah, you read that right. The HUMMER EV can move diagonally, like a crab. It's not just a party trick; it's a game-changer when you need to navigate tight spots or tricky terrain. I can already hear off-road enthusiasts cheering for joy. Experience the Future at Earnhardt Buick GMC Now, here's the best part – you can experience all of this and more by checking out the 2024 GMC HUMMER EV at Earnhardt Buick GMC. These folks are the real deal when it comes to showcasing the latest and greatest vehicles. Trust me; you don't want to miss this opportunity to witness the future of driving. The Bold Statement of the HUMMER EV In conclusion, the 2024 GMC HUMMER EV is not just a car; it's a statement. It's bold, it's powerful, and it's leading the charge towards a greener, more electrifying future. So, what are you waiting for? Head over to Earnhardt Buick GMC and witness the revolution on wheels. The future is electric, and it's looking mighty fine in the form of the HUMMER EV.

Your tires are subject to constant wear as you drive due to friction with the surface. They can also be damaged by environmental conditions like extreme heat or cold and even direct sunlight. Safe driving requires good tires, and as your Buick dealership, we'd like you to know some of the signs you need to visit us for new tires. Signs You Need New Tires from Your Buick Dealership Low Tread The tread is the raised section of a tire that's in contact with the surface. Due to this surface contact, it's also the part of the tire that will wear the fastest due to the constant abrasion. It's interspersed with grooves that serve to channel water or mud backward to prevent it from collecting underneath the tread and potentially causing the tires to skid. As the tread level drops, you'll notice that your brakes take longer to work, and handling, particularly on wet surfaces, becomes more difficult. The minimum safe tread depth is 2/32". If your looks low, you can test it with a tread depth gauge or by visiting our service department where we'll check it for you. If your tread is low, we can replace any worn tires so you can drive safely again. more Underinflated Tires Your car manual gives the correct tire pressure for all your tires. The tire pressure for your front and rear tires is often different, and this is due to the weight distribution on your Buick and the type of drivetrain it has. We recommend regularly checking your tire pressure, as underinflated tires will suffer extra wear and tear. Underinflated tires will sag slightly on each side, and this brings part of the softer sidewall into contact with the surface. The sidewall isn't reinforced with the steel and polymer bands the tread has, and the rubber will wear much faster. We can check the tire pressure for you and inflate the tires to the correct level if necessary. We'll also examine tires for any damage and then recommend if they need replacement. Overinflated Tires This situation is the opposite of the problem above. In this case, the tires have too much air, which is just as dangerous. When you're driving, the friction generated by a tire moving over the surface causes the air inside the tire to heat up. This is even more important on a hot day, as this will cause the air to heat up even faster. When the air inside a tire heats up, its pressure increases. Overinflation causes the rubber to stretch slightly, which makes the tire surface thinner and weaker. Combined with the increased pressure inside the tire, an over-inflated tire could blow out and lead to an accident. We'll check your tires and replace any damaged ones. If your tires are worn or damaged, visit us today at Earnhardt Buick GMC in Mesa, AZ.

When you own a GMC or Buick vehicle, you are driving a symbol of quality, performance, and style. To ensure that your investment continues to serve you well, it's crucial to prioritize regular car maintenance. Here are a few tips from your GMC dealer about how to maintain your vehicle: not only to keep it in great shape but also to prolong its lifespan. Regular Oil Changes Oil is the lifeblood of your engine, and regular oil changes are vital for keeping it running smoothly. GMC and Buick vehicles require high-quality synthetic oil, so it's essential to follow the manufacturer's recommended oil change intervals. Regular oil changes help lubricate your engine's moving parts, reduce friction, and prevent costly engine damage. more Tire Maintenance Proper tire maintenance is crucial for safety and performance. Check your tire pressure regularly, as underinflated, or overinflated tires can affect fuel efficiency and handling. Additionally, ensure that your tires are properly aligned and balanced to prevent uneven wear and improve handling. Brake Inspection and Service Your brakes are one of the most critical safety features in your vehicle. Regularly inspect your brake pads and rotors for wear and tear and have them replaced when necessary. Brake fluid should also be checked and replaced as recommended to maintain optimal braking performance. Air Filter Replacement A clean air filter is essential for your engine's efficiency and longevity. Over time, air filters become clogged with dirt and debris, restricting airflow to the engine. Replacing the air filter as recommended ensures that your engine breathes easily, leading to better fuel efficiency and overall performance. Regular Fluid Checks Your GMC or Buick vehicle relies on various fluids, including coolant, transmission fluid, and power steering fluid, to operate smoothly. Regularly check these fluids and top them off as needed. Also, follow the manufacturer's recommendations for scheduled fluid flushes and replacements to prevent overheating and transmission issues. Battery Maintenance A reliable battery is essential to ensure your vehicle starts without any issues. Inspect your battery terminals for corrosion and ensure they are clean and securely connected. If your battery is older or shows signs of weakness, consider replacing it to avoid unexpected breakdowns. Routine Inspections Schedule routine inspections with a certified GMC or Buick service center. These inspections can identify potential issues before they become costly problems. A professional technician can thoroughly assess your vehicle's condition and recommend necessary maintenance or repairs. Don't wait until your vehicle faces major issues. Contact Earnhardt Buick GMC today to schedule a maintenance appointment and keep your GMC or Buick in excellent condition. Our team of dedicated professionals here in Mesa, Arizona, is ready to assist you.

Hey GMC fam! We get it – you love your ride to shine just as brightly as your smile. But what happens when those headlights start losing their sparkle? It might be time for a little headlight TLC. Let's dive into some clear signs that your GMC might be craving some new headlights. 1. Dimming Headlights – The Telltale Sign Ever notice that your once-bright headlights are starting to dim? It's not just your imagination. Headlights can lose their luster over time, and if they're not illuminating the road like they used to, it's a clear signal that it's time for an upgrade. Dimming headlights can impact your visibility, making nighttime driving a bit more challenging. more 2. Hazy or Yellowed Lenses – Time for a Makeover Headlights lose their crystal-clear appearance over time, especially if they're exposed to the elements. If your GMC's headlights are looking hazy or yellowed, it's not just an aesthetic concern. Cloudy lenses can significantly reduce the amount of light emitted, affecting your overall visibility on the road. Fresh, clear lenses not only improve your vision but also enhance your GMC's sleek appearance. 3. Flickering Lights – A Warning Sign If your headlights are flickering like a disco ball at a '70s party, it's time to pay attention. Flickering lights could indicate a variety of issues, from loose bulbs to electrical problems. Either way, it's a clear sign that something's amiss and a cue to get those headlights checked and replaced if needed. 4. Rapid Burnout – Blink and They're Gone Have you noticed that your headlights seem to burn out faster than you can say "GMC"? Rapid burnout is a common issue, and it's a sign that your headlights are on their way out. Constantly replacing bulbs can be a hassle, not to mention a drain on your wallet. Consider upgrading to longer-lasting and more efficient options for a brighter, worry-free driving experience. So, if your GMC's headlights are showing any of these signs, it might be time to treat your ride to some new headlights. After all, clear vision is the key to safe and stylish driving. Stop by Earnhardt Buick GMC to schedule your services with us. Keep shining, GMC enthusiasts!

When your battery starts to die, your car will give you a few clues. If you notice any of these, it's important to get a new car battery from your GMC dealership as soon as possible. If you wait too long, there can be damage to the electrical components of the vehicle if the battery fully fails, and, of course, you could end up stranded when you least expect it. Electrical Jitters Pay attention to the quirks in your car's electrical system. Do your radio speakers crackle or dim intermittently? Do your gauges flicker or malfunction briefly? These seemingly minor glitches can be early signs of a struggling battery, unable to maintain consistent voltage throughout its network. Infotainment Issues Modern cars rely heavily on digital displays and touchscreens, so if your navigation system loses its saved locations, your radio forgets your presets, or your clock resets itself, a failing battery could be the culprit. These memory-dependent features are particularly vulnerable to fluctuations in power supply. more That Chilling Click Imagine turning your key, expecting the familiar roar of the engine, but only hearing a single, sharp click. This click, often accompanied by dim dashboard lights, is a stark indicator of a depleted battery. It signifies that there's insufficient power to even attempt cranking the engine, leaving you stranded and requiring a jumpstart. If you find yourself having to jumpstart your car frequently, this is a warning sign that your battery is on its last legs. Start budgeting for a new one soon. An Unwelcome Aroma If you detect a faint sulfurous odor wafting from the engine bay, especially after stopping the car, it could be a sign of internal battery damage. This smell is similar to rotten eggs, arises from the release of sulfuric acid from the battery cells, and it's a warning of overheating or overcharging. The Weight of Time Just like all good things, car batteries don't last forever. Most have a lifespan of 3–5 years, depending on usage and climate. If your battery is nearing its sunset years, even without noticeable symptoms, consider a proactive replacement to prevent unforeseen breakdowns. Coughing Starts Your engine should always just roar to life as soon as you turn the key or press the Start button. If it doesn't, and it sounds like it's coughing or whining as it struggles to get started, the battery starts to go. You have some time at this point, but not much, so start thinking about your new battery now and call us to make an appointment. ​If you're noticing issues, ​come see us at Earnhardt Buick GMC right away, and we'll get you back on the road.

A healthy radiator is essential for your GMC, as its job is to remove heat from your engine. Combustion and the movement of hundreds of components generate large amounts of heat. If your engine gets too hot, it can suffer serious, even fatal damage. As your GMC dealer, we want to tell you about some signs you need to visit us for a radiator repair. Leaking Coolant Liquid coolant is a mixture of antifreeze and water, and it absorbs heat. As it moves through your engine, it collects the heat and transports it to the radiator. When the coolant enters the radiator, it's diverted into rows of thin aluminum tubes. Air flows in through the grille and cools the hot fluid in the tubes. Once the coolant has cooled, it circulates through your engine again. Coolant is available in bright colors like pink, blue, yellow, and green, which makes a leak easy to spot. If your engine is leaking coolant, the pressure in the cooling system will drop. As the pressure in the system drops, the remaining coolant will move slower, and the cooling system will fail. Our technicians will trace the source of the leak and permanently seal it to fix this problem. more Damaged Radiator Fan The radiator fan is attached to the rear of the radiator. When you're driving, heat is removed from the coolant by fast-moving air entering through the radiator grille. If you're driving slowly, stuck in gridlock, or idling, airflow into your engine is greatly reduced. In these situations, the radiator fan will switch on and blow across the back of the radiator tubes to force the hot air out through the grille. A radiator fan can fail due to age, but it can also fail due to damaged wiring or a blown fuse. If the fan isn't working, and airflow is insufficient to cool the hot coolant, your engine will start overheating. We'll examine the fan and identify the cause of the problem. Depending on the situation, we'll repair the problem or replace the fan. Jammed Thermostat The thermostat controls the release of coolant. The thermostat opens and releases coolant when the engine temperature reaches a predetermined temperature. The released coolant is pumped through the engine at high speed to remove excess heat and maintain an efficient operating temperature. A thermostat is a relatively simple mechanism, but it can jam. If this happens, it will release too much coolant or no coolant at all. Too much coolant will drastically lower the engine's operating temperature, and the engine will use more gas. If no coolant is released, your engine will overheat. We will fix this problem by replacing the jammed thermostat. If your engine is running too hot, call us right away at Earnhardt Buick GMC.

Your vehicle is a masterpiece of engineering, and maintaining its peak performance is crucial for a smooth and safe ride. One often overlooked aspect of car maintenance is tire rotation, and the team at Earnhardt Buick GMC is here to shed light on the benefits of this essential service. 1. Extended Tire Lifespan Regular tire rotations can significantly extend the lifespan of your Buick and GMC tires. The front and rear tires of your vehicle wear differently due to factors like steering and weight distribution. By regularly rotating your tires, you ensure that each tire wears evenly, preventing premature wear on specific treads. This not only saves you money on frequent replacements but also contributes to a safer driving experience. more 2. Improved Fuel Efficiency Efficiency matters and tire rotations play a vital role in maintaining your vehicle's fuel efficiency. Unevenly worn tires can lead to increased rolling resistance, forcing your engine to work harder and consume more fuel. By scheduling regular tire rotations at Earnhardt Buick GMC, you'll optimize your vehicle's performance and enjoy better fuel economy. 3. Enhanced Handling and Performance Balanced tire wear isn't just about longevity; it also has a direct impact on your car's handling and overall performance. Unevenly worn tires can affect traction, stability, and cornering capabilities. A well-executed tire rotation at your trusted Buick GMC dealer ensures that your vehicle maintains its optimal balance, delivering a smoother and more responsive driving experience. 4. Safer Driving in All Conditions Tires with uneven wear patterns are more susceptible to skidding, especially in wet or slippery conditions. By having your tires regularly rotated at Earnhardt Buick GMC, you enhance your vehicle's safety on the road. Consistent and even tire wear promotes better traction, reducing the risk of accidents, especially during adverse weather conditions. 5. Warranty Protection Maintaining your Buick or GMC according to the manufacturer's recommendations is crucial for warranty protection. Regular tire rotations are often part of the recommended maintenance schedule, and by adhering to these guidelines, you ensure that your warranty remains intact. This not only protects your investment but also gives you peace of mind knowing that your vehicle is in top-notch condition. Don't overlook the importance of tire rotations in your car's maintenance routine. Schedule a tire rotation at Earnhardt Buick GMC today and experience the benefits firsthand. Your vehicle—and your wallet—will thank you. Visit Earnhardt Buick GMC to learn more about our services and schedule your tire rotation.

One way to help keep your car in top shape is regularly changing the oil. Understanding the right interval for oil changes and recognizing the signs your vehicle needs a trip to the GMC dealer can save you from issues that may impact your car's performance. Understanding How Often to Change Your Oil Typically, newer models equipped with advanced engines and synthetic oil can go longer between changes, anywhere from 5,000 to 7,500 miles. However, your owner's manual may say differently, and it's always best to follow its guidance. If you often drive in harsh conditions or extreme temperatures, take frequent short trips, or tow heavy loads, your vehicle might need more frequent changes. Because using your car this way can put extra strain on your engine, it requires more frequent oil maintenance. more What Happens When You Skip Oil Changes at the GMC Dealer? Reduced Efficiency and Performance Old, dirty oil can reduce the efficiency of your engine. It can lead to a buildup of debris inside the engine, hindering its performance and reducing fuel efficiency. Engine Damage Oil lubricates the moving parts inside your engine, preventing them from wearing down due to friction. If you delay changing the oil in your car, the oil can become dirty and less effective, leading to increased wear and tear on your engine components. 4 Signs You Need to Change Your Oil 1. Illuminated Check Engine or Oil Light Modern Buick and GMC vehicles are equipped with an oil monitoring system. If your oil light has come on, it's a clear sign you need to change the oil. If your check engine light comes on, taking a look at your oil should be one of the first steps you take. 2. Dirty or Dark Old Oil The new engine oil is a clear, amber color. Over time, it gets dirtier and dirtier and begins to get dark. Check your oil regularly with the dipstick to help determine if it's time to change the oil. 3. Knocking Sounds and Increased Engine Noise Good quality oil creates a protective barrier between the moving parts of your engine. If your oil is low or too old, you might start to hear more noise from your engine. If you hear a knocking noise, it means that parts are beginning to wear down, and you should act before any more damage occurs. 4. Smoke from the Exhaust Smoke may mean that oil is burning in the engine. This could mean an oil leak, so that should be checked by a professional right away. Regularly changing the oil in your car is crucial to keep it running well as long as possible. Give your vehicle the TLC it deserves and call Earnhardt Buick GMC to schedule your service.