Greenwood Village Auto Repair

Colorado residents may have heard that vehicles don't need their oil changed as often as they used to. That's true. But it's not the whole story.Owing to improved engine technology and higher oil quality, most newer vehicles can go longer between oil changes than their older counterparts.So what is a good time interval for oil changes? How do Colorado residents know when to change it? And why do we change it in the first place?Oil lubricates a vehicle's engine, which protects it from friction damage. Over time the oil can collect dirt and contaminants that inhibit its performance. But dirty oil isn't the only problem for Colorado residents. What you really want to avoid is called oil sludge.Oil sludge is caused by moisture in the oil and by hot spots in your engine that burn off oil. This sludge is a gooey gel that can clog engine passageways, which can block lubricants from reaching vital engine parts. The result can be engine wear or even engine failure.Sludge forms rapidly in an eng ... read more

Anyone who drives a car in Centennial knows that engines get hot when they run. But did you know that engines need to be cooled to keep running? Heat inside an engine can cause the metal parts to expand, which can seize up an engine and make it stop running. It can even ruin the entire engine! Good vehicle care requires keeping its cooling system in good condition.A vehicle's cooling system circulates water and antifreeze (coolant) through the engine where it absorbs heat. It then flows to the radiator where the water and antifreeze are cooled by the air that flows over the radiator. Then it circulates back into the vehicle's engine to absorb more heat.Why shouldn't Centennial auto owners just use water? Because water boils at temperatures that are often reached inside of an engine. Steam won't cool your vehicle engine and is hard to contain within the cooling system. The antifreeze keeps the water from boiling.So why do w ... read more

Fuel filters clean the dirt, dust and debris out of your fuel. Both gasoline and diesel-powered engines have them. The fuel filter is located in the fuel line between the fuel tank and the vehicle engine.Centennial auto owners don't need to filter their fuel because it has lots of grit in it; they need to filter it because it has some grit it in. Any dirt is bad for your engine. The cleaner the fuel, the better your vehicle engine will run.Over time, the small amounts of rust, dirt and contaminants in your fuel settle out inside the fuel tank. After about five years, this can amount to a quite a bit of sediment. This means that as your vehicle ages, your fuel filter has to work harder to screen your fuel: more sediment in your tank means more potential for grit in your fuel.The harder your fuel filter works, the more often it needs to be replaced. Check with your owner's manual to find out how often it should be serviced and how long you can expect it to last. Cen ... read more

Today's Davis Automotive Repair article focuses on severe service maintenance. Many Centennial drivers are not aware of them and yet there are also very vocal advocates in Colorado who think that severe service schedules apply to everyone. Somewhere between a complete lack of awareness and the dire blanket statements lies a reasonable approach to severe service maintenance at Davis Automotive Repair.To back up a little, vehicle owner's manuals have schedules for preventive maintenance: things like oil changes, transmission service and so on. They say you should change your oil after a certain distanced traveled or after so many months. Centennial drivers understand this very well. What they may not know is that there are actually two service schedules: the regular schedule and the severe service schedule. The mileage and time intervals are lower on the severe service schedule.Now when you hear 'severe service,' you may think it doesn't apply to yo ... read more

Hello Centennial - let's talk differentials. If you have a rear-wheel drive vehicle, your differential is on the back axle. With front-wheel drive cars, the differential is up front. All-wheel drive and 4-wheel drive vehicles have three differentials - front, rear and in the middle. So you see, you've got a differential (or two or three) and it needs service now and then.What does your vehicle differential do? Well, it compensates for the differences in speed between your outer and inner wheels in a turn. Using the dimensions of a typical car, let's compare the distance the wheels travel from the start of a turn through to the completion of the turn.The inside wheel travels about 12.6 feet/3.8 meters. How much farther does the outside wheel travel? About 18.8 feet/5.7 meters – over 6 feet/1.9 meters more. This means the outer tire has to rotate 9 times in the same amount of time that the inner tire has to rotate only 6 times - so the ... read more

Good brakes are obviously very important. If you've ever had your brakes go out while you're driving around the Centennial area, you'll know how terrifying it can be. Today we'll focus on how to tell when you have a brake problem and how to make good repair choices. Often, the first indication that something's wrong with the brakes is an unusual sound. It could be a squeal, chatter or grinding sound. Some brake pads have a little piece of metal embedded in them that will make a squeal or chirping sound when the brake pads have been worn down to the point that they need to be replaced. It's an early warning indicator. When you hear that sound, schedule an appointment at Davis Automotive Repair soon. Now a chattering sound is more urgent. That usually indicates that something is loose. It could be a brake pad or even the brake calipers. If one of those parts falls off, you could have some serious trouble stopping the vehicle. It would ... read more

Uneven tire wear, the car pulling to one side or a steering wheel that is off-center are signs for Centennial drivers that their wheels may be out of alignment.When doing an alignment inspection, the service advisor at Davis Automotive Repair will inspect your tires for uneven wear as well as suspension and steering parts for signs of wear or damage. He?ll also compare your current alignment with the vehicle manufacturer?s settings.Your vehicle owner?s manual will have a recommendation for when to check alignment. Of course, this recommendation is based on normal driving. If you have been in a crash, hit a curb/pothole, frequently drive off-road around Centennial, or notice any symptoms of misalignment, have your Davis Automotive Repair service advisor perform an important alignment check.Davis Automotive Repair6867 South Emporia StreetCentennial, Colorado 8011230

Most Centennial folks occasionally have days when they've got a bunch of errands to run. Yesterday was my day off and I needed to fill the gas tank, pick up some groceries at my Centennial market, swing by the ATM and get the kids from school. I could have made four trips . . . but that would have been totally inefficient. Instead I got unusually organized and planned my stops. I hit the ATM first and got gas next. Then I went to the supermarket and picked up the kids on the way home. I was proud of my wise use of time and money.What does this have to do with your car? Well, back in the day, each of your engine's accessories, like the alternator and air conditioner, were powered by separate belts. A vehicle might have five or six belts. These days, vehicles have a single belt to run all the accessories. It's called the serpentine belt. A pulley attached to the vehicle engine's crank provides the power to turn the serpentine belt. On the engine in the video, the first accessory in line ... read more

Centennial drivers may feel intimidated when they take their vehicles to a service center. They have questions but aren't sure how to ask. They don't want to feel embarrassed about their lack of knowledge. They don't want to make the service technician feel that they don't trust him.If your service advisor at Davis Automotive Repair uses a term you don't understand, just ask him to explain. Remember, they are the auto service experts. If they came to your place of work, they probably wouldn't understand the jargon, either. When you take your vehicle in to be serviced, make sure you understand the financial issues up front. Ask about payment policies, warranties and, of course, the cost of the work being done.It helps to understand basic services your vehicle needs. Know the difference between a quick check-up and a thorough inspection, which you are getting and which you are asking for. Understand that diagnosing a problem takes time, and time isn't free. If you have concerns abou ... read more

Screeching tires, crunching metal – it's an accident! If you've ever been in a car accident in Centennial, even a minor one, you know how upsetting it can be. It's hard to think straight and know what to do.Let's review what Centennial drivers should do in case of an accident:When an accident occurs, you should always stop. Leaving the scene of an accident in Centennial is considered a crime - even if it's not your fault. And hit and run penalties are fairly severe, possibly resulting in steep fines, loss of your Colorado driver's license or even jail time.Your jurisdiction may require that you try to help someone who is injured by calling for help or performing first aid if you are able. Warn other motorists by putting out flares, using your flashers or lifting your hood. Call Centennial emergency services as soon as possible. Tell the operator if medical or fire help is needed.You should always file a police report. It's tempting to skip this if everything ... read more