What Is A Differential And Do You Have One?

With front-wheel drive being so common these days in Austin , Texas, the differential is just taken care of during a transmission service, so most folks in Austin , Texas don’t even have to think about it. And rear-wheel drive differentials don’t need to be serviced for years, so it’s understandable that it’s not something on the top of mind for our Austin customers. So it’s not uncommon for people to not know they have a differential let alone know that it needs service.

Call Newman’s Automotive at 512.447.7801 for information about differential service, or stop by our Austin , Texas auto center at 3916 Woodbury Dr 78704.

To better understand what a differential does, think about our local Austin high school track. There are lanes marked off on the track. For the longer distance races, the starting lines are staggered. The starting lines for the outside lanes are ahead of the starting lines for the inside lanes. That’s to compensate for the longer length of the outside lanes. Staggering the starting lines means that each runner has the same distance to run.

The differential compensates for the difference in speeds between the inside wheel and the outside wheel in a turn, because they have to travel together through slightly different distances.

It’s a very important function. When you think of it, all the power to get a vehicle moving goes through the differential. Most cars in the Austin , Texas area weigh between three and six thousand pounds – trucks even more. The power from the engine goes through the transmission and then through the differential to the drive wheels.

That’s a lot of work and requires very heavy duty parts. And those parts need protection. The differential fluid lubricates the gears in the differential and keeps them cool.

The fluid eventually gets dirty and worn down. Some kinds of differentials require special additives that breakdown over time. So manufacturers recommend intervals for replacing your differential fluid.

Your Austin , Texas technician at Newman’s Automotive will drain the used fluid and check it out for metal bits, which could be a sign of excessive wear on the gears. Then he’ll replace the fluid and install the additives if necessary.

Your Newman’s Automotive service advisor can look up the manufacturer’s recommended service interval or you can check your owner’s manual. Give us a call at 512.447.7801 for more information about your differential service.

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Why People In Austin Hesitate to Get their Vehicle Serviced

A recent report stated that over 80 percent of the vehicles on our Austin Texas roads have one or more service or repair that’s needed, but hasn’t been taken care of. Now that’s a lot of undone service. That translates into something over 160 million vehicles in the U.S. alone. Some of the neglected items are minor. Others are serious safety concerns.

There are several reasons why we hesitate to take care of recommended services; especially services that our Austin Texas automotive advisor recommends when we’re in for something else, like an oil change.

The first issue boils down to comfort with car care. We don’t always feel we know enough to make good decisions. Some of that can be attributed to the fact that vehicles are so reliable these days. They almost become an appliance. Of course you love your vehicle, but if you don’t have to worry about it breaking down all the time, you’re not forced to think as much about preventive maintenance.

Perhaps your dad knew a lot about cars and always made sure they were taken care of. He was very comfortable dealing with his local Austin Texas service advisor. People who don’t know as much about cars hesitate to ask questions because they don’t want to look ignorant.

It’s human nature. But, there’s so much to know in this world, we can’t all be experts in everything. So we specialize. It’s very important to ask questions of any specialist, whether it’s your doctor, financial advisor or your automotive technician in Austin , Texas.

Your auto technician at Newman’s Automotive wants your questions. We want you to understand the recommendation and why it needs to be done.

That brings us to the next issue; people say that they don’t always know if they really need the service or if they are just being sold something.

At the heart, it speaks to trust. Do you trust your Austin service center and your service advisor? Trust has to be earned and that takes time and experience. But you can shortcut the process when you realize that most of the recommendations are based on manufacturer’s maintenance schedules.

In other words, “you don’t have to trust me, you can trust your owner’s manual”.

Your Austin service center has computer databases that contain the manufacturer’s recommendations for almost all vehicles, so they don’t need to rummage through your glove box to look for your owner’s manual to know what to do.

Basically, the engineers who designed the car say “here’s when you need to have it serviced”. That’s who makes the recommendation, not the technician. He’s just reminding you.

Now you do need to trust your Austin technician’s experience and judgment from time to time. When he inspects your vehicle, he may find problems or concerns. He will explain things so that you can prioritize the concern and make a good decision about whether or not to have something done.

That brings us to the third issue; money. Often the concern is about spending the money to take care of a recommended service. Our money has many places it needs to go. And we have another list of places we want it to go. Auto maintenance isn’t usually on either of those lists.

Look, everyone who works at Newman’s Automotive has a family budget, too. They can relate. Maybe a little look behind the scenes would be helpful.

Service centers like Newman’s Automotive invest heavily in training, diagnostic equipment and tools so that they can make repairs and perform services as efficiently as possible. And like any other business, they have labor costs, insurance, rent, utilities, shop and office supplies, taxes and so on.

We work hard to make sure that we diagnose the problem correctly and fix it right the first time. That’s the only way we can maintain our reputation and remain in business. If we’re not satisfying our customers and providing a good value, you won’t come back and the service center won’t be around for long.

When there is a real budget concern, your Austin service center can help you prioritize the work that needs to be done and come up with a plan for taking care of it that works within your budget.

Let’s say you have a serious problem with your brakes. That’s a safety concern so a technician can’t ethically say, well, let’s put that off for a couple of months. What they can do is take care of the brakes now and address the cabin air filter or transmission service next month.

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Professional Fuel System Cleaning

Getting enough fuel to your engine is very important for performance, fuel economy and safety. In order to accomplish this, your fuel system needs to be clean.

Today’s production cars have fuel injectors, rather than a carburetor. The injectors need to be cleaned from time to time in order to deliver the fuel with the correct pressure, spray pattern and volume.

You can buy fuel system cleaners that you just pour into your gas tank that can help maintain an already clean fuel system, but can’t do a major cleaning. For that, you need to see Newman’s Automotive. They have the tools and chemicals to do the job right. Newman’s Automotive can remove particles, gum and varnish from your fuel system and get those injectors running cleanly and efficiently.

You’ll find Newman’s Automotive at 3916 Woodbury Dr in Austin , Texas 78704. Or just give us a call at 512.447.7801 to schedule an appointment.

You’ll enjoy more power, better gas mileage and reduced exhaust emissions. The cleaners also help prevent rust and corrosion in your fuel system and lubricate vital engine parts.

And, as with all maintenance, it can help prevent costly repairs that can happen because you didn’t take preventative steps. Check with your service technician at Newman’s Automotive and see when your car is scheduled for a fuel system cleaning.

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On Board Diagnostics For Austin Motorists


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Some Austin motorists are confused by Newman’s Automotive charges for diagnostic services for a vehicle repair. Many services at Newman’s Automotive and other Austin automotive repair shops include diagnostic fees.

When you take your laptop into a Buda computer repair shop for a problem you’ll likely have to leave a deposit for diagnostics. When we visit our Kyle doctor for a medical problem, we’re paying him to diagnose our ailment and of course for the tests that go along with it.

On Board Diagnostics For Austin  Motorists

So receiving a diagnostic charge at Newman’s Automotive for a tricky automotive problem shouldn’t be a surprise. In the Buda area, automotive diagnostics can cover quite a range. If you hear a noise in your vehicle brakes when you slow down in rush-hour traffic on a busy Texas expressway, you pull off the next off-ramp and take a quick visual check. That is usually enough to know what needs to be done. If you’re having an intermittent problem with your vehicle engine, Newman’s Automotive diagnosis may be much more involved.

Much of the Buda public’s confusion comes when the problem involves the check engine light. The check engine light comes on when the engine management computer has sensed a problem.

There’s a common misconception among Kyle, Dripping Springs, and Wimberly drivers that the trouble code tells the Newman’s Automotive technician exactly what’s wrong. Why then is there a diagnostic charge, the scanner just gave the diagnosis?

Reality is more involved than that. The computer monitors many sensors throughout the vehicle. When one of these sensors has a reading that’s out of parameters, the computer will record a trouble code and turn on the check engine light.

The vehicle computer’s trouble code just tells the Newman’s Automotive technician what engine parameter is out of range – not what’s causing it. The technician needs to determine the underlying problem that’s causing the symptom.

There are many problems that could cause a troublesome sensor reading for Newman’s Automotive Austin customers. The Newman’s Automotive technician makes a list of the most likely causes and begins tracking down the source of the problem.

Buda service centers subscribe to databases that document possible causes for a given trouble code. They outline procedures for confirming a diagnosis and provide the documented fix. These databases are specific to each vehicle and engine combination.

Some diagnoses are quick and easy. Others are more involved and difficult. Of course Newman’s Automotive wants to figure out what’s wrong with your vehicle and get you back on the road as quickly as possible.

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Following Recommended Intervals For Your vehicle

If you’re reading this article in Austin Texas, then you probably care about your car and how it runs. Even though you care, there is still that moment of dread when your service technician tells you the manufacturer recommends some additional service. Your heart beats a little faster, your blood pressure rises. You worry about spending more money than you expected.

Contact Newman’s Automotive in Austin Texas by calling 512.447.7801

And you worry that if you say “no”, you might be harming your car or compromising safety.

At the risk of sounding like your dad, you really should have done your homework. All of this stuff is in your owner’s manual. But it is not like you want to keep your maintenance schedule on your nightstand for bedtime reading.

Cars are complicated machines and it takes care to keep them running well. That is why manufacturers have maintenance schedules that explain how to keep your vehicle performing efficiently and prevent costly break downs. In a typical owners manual you’ll find: oil change, brake fluid and pad change, coolant system service, transmission service, battery electrolyte levels, cables and terminals, tire pressure and wear, CV boots, cabin air filter, air conditioning, heater, fuel filter, air filter, belts and hoses, power steering fluid, differential service, fuel system cleaning, and wheel alignment. And then there are mechanical service requirements like timing belt changes, valve adjustment, steering function, engine and exhaust leaks – yeah, it is a really long list!

Fortunately, this isn’t a test: You don’t need to have it memorized. Your service center at Newman’s Automotive has access to your manufacturer’s recommendations. So do not be surprised when your technician at Newman’s Automotive reminds you something is due. Your manufacturer has taken great care in putting together your maintenance schedule. Let Newman’s Automotive help you stay on top of important maintenance. You can expect them to suggest recommended services and tell you what problems they find under the hood. We’ll also explain how urgent these services are so you can work them into your budget.

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Ethics of Automotive Repair in Austin

We’re going to be talking about the ethics of automotive repair. It seems like news outlets really like hit-and-run reporting; they hit everyone from groceries stores to retail to physicians. And the Austin automotive service and repair industry hasn’t been given a pass either.

Unfortunately, every profession in Austin has some bad actors that hurt the reputation of everyone else. On the automotive side, industry associations and professional licensing organizations are very committed to high ethical standards.

Yet some people remain uncomfortable with Austin automotive service and repair. It may start with the fact that our vehicles are a big investment and we rely on them for so much in our lives. That alone guarantees our attention. And how well we understand the recommendations really impacts our comfort level.

If we understand what’s recommended and the benefits of taking care of the work – and the pitfalls of putting it off – we’ll have more trust in the recommendation. So communication is key. It’s like going to the doctor; If she’s using medical jargon and takes a lot of basic medical knowledge for granted, we have a hard time following her train of thought. It can be like that with your Austin service advisor too. He’s so familiar with all things automotive, he may forget you don’t know a PCV from an EGT.

If you don’t understand what your doctor’s talking about: ask some questions. If you don’t understand what your Austin automotive advisor’s talking about: ask some questions.

Let’s go back to those ethical standards; when we hear a repair recommendation, we always ask ourselves, “Is this really necessary?” Well, here’s the industry standard:

If a technician tells you that a repair or replacement is required it must meet the following criteria:

  1. The part no longer performs its intended purpose
  2. The part does not meet a design specification
  3. The part is missing

For example, it you take your car in for a grinding noise when you step on the brakes, you may just think you need new brake pads. After the inspection, the technician at Newman’s Automotive says that you have a cracked rotor and need to replace it.

If you tried to get him to simply put new pads on, he would say that if you didn’t want to replace the rotor; Newman’s Automotive would ethically have to refuse the repair.

To just put pads on a cracked rotor would have been very wrong. The brakes could’ve failed at anytime and needed to be repaired – not just have a band-aid slapped on them.

Now, looking at something not so serious, the technician may suggest repair or replacement if:

  1. The part is close to the end of its useful life – just above discard specifications or likely to fail soon
  2. To address a customer need or request – like for better ride or increased performance
  3. To comply with maintenance recommended by the vehicle’s manufacturer
  4. Based on the technician’s informed experience

Of course, the technician has the burden of making ethical recommendations and properly educating their customers. For the customer, if you are uncomfortable with a recommendation, ask some questions. More information is always a good thing.

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Shocks and Struts For Austin Bumps and Bounces

If you’re like most of us in Austin , you want your car to handle well. That’s the job of your suspension system.

There are different types of suspension systems, but they all work on the same basic principles. First, there are the springs, which bear the weight of the car. The most common springs are coil or leaf – although we see air springs and torsion bars more often. The springs do most of the work.

Visit our Austin location for an inspection of your suspension.
Newman’s Automotive
3916 Woodbury Dr
Austin , Texas 78704
512.447.7801

But if all you had were springs, your vehicle would be bouncing around like a bobble head. That’s where the shocks come in. They control the rebound of the springs and smooth out the up and down motions. They also keep the tires on the road, and you in control. Some vehicles use struts. Struts are a combination of shocks and springs, together in a more compact system.

Shocks wear out slowly over time, so it’s hard to notice when they get badly worn. One way to tell is to look for an uneven, cupping wear on your tires. If the shock or strut is leaking fluid, it needs to be replaced. If your car feels floaty in turns or if the front end dips a lot when you stop, it is time to get your shocks checked. Your owners’ manual will tell you when your shocks should be changed – it’s usually between 15,000 and 30,000 miles or 24,000 and 50,000 kilometers .

When you replace a shock, be sure to replace all four. Then your car will have an even suspension and will handle much better. Talk with your service advisor about how you drive. No, not your traffic violations, but how often you carry heavy loads, tow a trailer or drive in rough terrain. If you do a bunch of that, you’ll need a heavy duty shock.

Regular shocks use hydraulic fluid and air as their dampening system. Premium quality shocks and struts use compressed nitrogen gas instead of air. Gas shocks don’t get air bubbles that affect the performance of regular shocks. If you do a lot of high performance driving, off-roading or just want added comfort and control, think about getting premium gas shocks or struts.

Replacing your struts may take your car out of alignment, so be sure to get an alignment at the same time. So, to smooth out the bumps on the road of life, change your shocks and struts when they need it.

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Charge It In Austin For Extended Battery Life

Here’s an interesting statistic for our friends in Austin Texas: Only thirty percent of car batteries make it to forty-eight months. And the life expectancy varies by where you live. It ranges from fifty-one months in extremely cold areas to just thirty months in extremely hot climates.

Why is that? It turns out that it’s our modern cars with all their electric accessories that are to blame. Things like, GPS, DVDs, and entertainment computers are keeping car batteries from maintaining a full charge. The longer a battery goes with a low charge, the sooner it’ll die.

So you must recharge your battery. This is the job of the alternator. The problem comes when the car’s demand for electricity is high and we are driving in stop and go conditions or short trips around Austin or Dripping Springs. The alternator just can’t keep up.

The result is shortened battery life. So what can we do to improve our battery’s health?

We need to keep the battery as close to a full charge as possible. That can be hard because sitting for just twenty-four hours in hot weather between charges can be too long. When the weather’s cold, sitting for several days will cause discharge.

So some highway driving between Kyle or Wimberly will help keep a full charge if the battery has not been deeply depleted. Car batteries are not designed to be run down really low, or deep cycled, as it’s called. So using your headlights or other power accessories when the car is off can deeply deplete your battery. Using the alternator to recharge from a deeply depleted state is very hard on your battery because it charges too fast. In fact, on average, your battery would only last for ten recharges like that.

If you do find yourself with a dead battery or very low battery, use a good quality battery charger to slowly bring the battery up to full charge. Follow the instructions on the charger.

Because our batteries are so often at less than a full charge, experts suggest that we use a battery charger from time to time to keep the charge up. They recommend once a month during hot weather and once every three months during colder times.

Now, a word on safety. Batteries contain sulfuric acid that can severely burn your skin and could blind you. If you find yourself with a dead battery, carefully inspect it before you jump start it. If the case is bulging, cracked or leaking, do not jump start it. Damaged batteries can explode or catch fire.

Deeply discharged batteries can freeze. Do not jump start a frozen battery.

Ask us about Tires, too.

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Fall and Spring Checkup In Austin

When I was a kid in Austin , my dad always made sure he took the cars in for Spring and Fall checkups. I was telling a friend that it’s about time to get into Newman’s Automotive for my checkup and he said that he read on the internet that modern cars don’t need seasonal service.

My friend is (technically) right about some things, but from a practical standpoint, a seasonal check up still makes sense.

Back when my dad was teaching me about how to take care of the family vehicle, most cars used a different weight of oil in the winter and in the summer. But most of today’s modern engines run the same oil year round. High-tech engines and high-tech motor oils are better able to handle the seasonal changes.

Your owner’s manual or Austin service advisor at Newman’s Automotive can tell you the right oil to use.

Of course, you’re concerned about the coolant or antifreeze. You don’t want to overheat in the Texas summer or freeze up in the winter. Your engine cooling system protects against both of these things. And modern coolant, or as it’s sometimes called; ‘antifreeze’, is up to doing both very well. It’s designed to last for more miles than most people drive in a year or two.

So how does a Spring and Fall check-up fit in? Let’s start with Spring. Summer is coming. That means heat, more miles driven and road trips. It just makes sense to check your fluid levels and do a visual inspection to see that everything is up to snuff.

You may not be scheduled to drain and replace the coolant for some time, but you need to make sure you have enough coolant, and that you don’t have any leaks or hoses that are about to fail.

That’s pretty practical; a check-up to see if there are any problems or emerging conditions that could later become a problem, like a cracked belt.

And the same principle applies for getting ready for winter. Cold weather means lots of failed batteries. It takes more power to crank up a cold engine, and cold also decreases the available cranking power the battery has available.

So a battery test in the Fall could tell you if you’ve got a battery that is running on its last legs. And of course, if you live where winter temperatures get below 45 degrees or you have ice and snow, you’ll want to consider changing to winter tires.

So Spring and Fall auto checkups at Newman’s Automotive are practical reminders to get ready for the demands of the hot and cold seasons to come.

And odds are that you have one or more routine services that are due anyway. Like a transmission service, brake or power steering fluid, differential service – stuff like that. Are your wiper blades still good? Are your headlamps starting to dim?

So Spring and Fall: change your clocks, replace the batteries in your smoke detectors – and get a check-up for your cars.

See, dad was right again.

Come and see us at Newman’s Automotive for your Spring and Fall automotive checkup.
Newman’s Automotive
3916 Woodbury Dr
Austin , Texas 78704
512.447.7801

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TPMS: Tire Pressure Monitoring For Your Austin Auto

You may know that all 2008 model year and newer cars, mini-vans and light trucks in Austin come with a tire pressure monitoring system. Many slightly older vehicles around Austin have these systems as well. A tire pressure monitoring system – called TPMS – consists of sensors on each wheel that measure tire pressure.

If tire pressure drops 25 percent below the manufacturer’s recommended pressure, the sensor sends a signal to a monitoring unit that causes a warning to light up on the dashboard. When you see the warning light, you know it’s time to put some air in your tires.

There are many benefits to driving with properly inflated tires around Austin . First is cost savings. Running at the correct air pressure improves fuel economy. Driving on under-inflated tires is like driving through sand – it drags down your fuel economy. You’ll also see longer, more even tread wear so your tires’ll last longer.

Another important benefit of properly inflated tires is increased safety. Under-inflated tires become hotter and that heat can actually lead to tire failure – possibly resulting in an accident. Your car and the tires themselves will just perform better and more safely around Austin with properly inflated tires.

Local Austin consumer groups, law-makers and vehicle manufacturers advocate TPMS systems hoping that they will save lives, property damage and inconvenience. While you can’t put a value on saving a life, we keep in mind that TPMS systems will carry a cost.

The systems themselves are added into the price of the car. The batteries in the sensors will have to be replaced from time to time. Parts will break and need to be replaced. In colder climates around Texas, ice and salt are frequent causes of failure.

In addition, there are other behind-the-scenes costs to be aware of. Every time a tire is replaced, repaired, rotated or balanced, the tire technician has to deal with the TPMS system.

Your service center (Newman’s Automotive) must purchase equipment used to scan and reactivate the TPMS system after every tire service. Because older tire change equipment can damage TPMS sensors, your service center may need to buy expensive, new tire changers.

Since there is no uniformity among manufacturers, technicians need to be trained on several TPMS systems. These behind-the-scenes costs are very real to your service center.

That’s why they are anxious for you to understand the financial impact of TPMS systems. In the past, they’ve been able to quickly and cheaply provide tire services, and then pass the low cost on to you as an expression of their good will. But now even these simple jobs will take much longer.

Sensors will need to be removed and reinstalled. Even a tire rotation will require that the monitor be reprogrammed to the new location of each tire. When a car battery is disconnected, the TPMS system will need to be reprogrammed.

So when you start so see the cost of tire changes, flat repairs and rotations going up, please keep in mind that it’s because of this new safety equipment. Newman’s Automotive just wants to keep you safely on the road – and we’re committed to do so at a fair price.

It’s important to remember that the TPMS warning only comes on when a tire is severely under-inflated. You’ll still want to check your tire pressure on a regular basis. At every fill-up is best, but you should check pressure at least once a month. Here’s wishing you safe travels.

Contact Newman’s Automotive for more information about Tire Pressure Management Systems.

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