In very simple terms, a fuel injector is a valve that squirts fuel into your Sedan engine. Your engine control computer tells the fuel injector how much fuel to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute in every single fuel-injected car driving down Tulsa , Broken Arrow, and Bixby roads.

Most fuel injectors for gas engines are known in the Broken Arrow auto industry as port fuel injectors because they deliver the fuel to a port just outside the cylinder. The fuel pump provides pressure needed to squirt the right amount of fuel into the engine.

A few auto makers have recently introduced gas direct injection systems on some engines. They are now available at some Broken Arrow dealerships. These systems inject the gas directly into the cylinders under very high pressure – many times the pressure of port injection systems.

Although more complicated, direct injection technology promises greater power with improved fuel economy for gas-poor Tulsa , Broken Arrow, and Bixby commuters. Oklahoma motorists can expect to see more of it in the future.

High temperatures under your Sedan hood and variations in Broken Arrow gas quality cause fuel injectors to be fouled with wax, dirt, water, additives and carbon. Injectors can become partially clogged, preventing them from delivering the proper amount of fuel at the correct pressure.

When injectors are dirty, the fuel doesn’t burn as efficiently resulting in poor fuel economy and loss of power. So it’s important for Tulsa drivers keep their fuel injectors clean.

Your Tulsa Cartec Automotive Service service center can perform a fuel system service for you in which the fuel injectors are cleaned so that they operate properly and deliver the right amount of fuel at the right time.

Proper maintenance of your Sedan fuel system means that you will spend less on gas, enjoy strong performance and prevent costly Broken Arrow repair bills down the road.

Imagine you’ve left Tulsa and you’re up in the arctic on a dog sled.

Your dog team is pulling straight and true. You can cover a lot of ground fast. Now imagine what would happen if one or two of the dogs wanted to go their own way and were pulling off to the side.

That would slow you down. You would have to work harder to keep the sled going where you want it. The dogs are all working as hard as before, but you’re covering less ground for the same effort.

You’re wasting kibble.

The same is true of your vehicle when the wheels are out of alignment. That wheel that’s pulling to the side is dragging down the rest of the car; so you push a little harder on the gas pedal to keep up your speed. You’re wasting gas.

So have your wheel alignment checked at least once a year. Get it checked right away if you feel the car pulling to one side.

Sometimes we bump a curb or hit a pothole and knock our wheels out of alignment. An accident can take the wheels out of alignment as well.

Cartec Automotive Service
2524 S Harvard Ave
Tulsa, Oklahoma 74114
918-747-1840

So make sure you’re tracking straight. You’ll save gas and your tires’ll last longer. Now, mush!

Hey Broken Arrow, are your tires worn out? What is the standard for our Oklahoma streets? How can you tell on your Sedan?

While there may be legal requirements for the Broken Arrow area, there are safety concerns that go beyond meeting minimum replacement mandates.

2/32 is the depth of the tire tread wear indicator bars that US law has required to be molded across all tires since August 1, 1968. When tires are worn so that this bar is visible, there’s just 2/32 of an inch – 1.6 millimeters – of tread left. It’s that level of wear that’s been called into question recently.

We’re referring to the Consumer Reports call to consider replacing tires when tread reaches 4/32 of an inch, or 3.2 millimeters. And the recommendation is backed by some very compelling studies.

The issue is braking on wet surfaces in and around Broken Arrow. Most of us think of our brakes doing most of the work, but if you don’t have enough tread on your tires, the brakes can’t do their job. When it’s wet or snowy, the tread of the tire is even more critical to stopping power.

Picture this: you’re driving over a water covered stretch of road near Broken Arrow, Oklahoma. Your tires must be in contact with the road in order to stop. That means that the tire has to move the water away from the tire so that the tire is actually contacting the road and not floating on a thin film of water.

Floating on the surface of water is called hydroplaning. So if there’s not enough tread depth on a tire, it can’t move the water out of the way and you start to hydroplane.

In the study a section of a test track was flooded with a thin layer of water. If you laid a dime on the track, the water would be deep enough to surround the coin, but not enough to cover it.

A car and a full-sized pick-up were brought up to 70 miles per hour, or 112 kilometers an hour and then made a hard stop in the wet test area. Stopping distance and time were measured for three different tire depths:

• New tire tread depth
• 4/32 of an inch
• 2/32 of an inch

So what happened with the 2/32 tires on the car? Get this – when the car had traveled the distance required to stop with new tires, it was still going 55 miles an hour. Stopping distance was nearly doubled to 379 feet and it took 5.9 seconds.

Wow! That means if you barely have room to stop with new tires, you would hit the car in front of you at 55 miles an hour with the worn tires.

Now, with the partially worn tires – at 4/32 of an inch – the car was still going at 45 miles an hour at the point where new tires brought the car to a halt. It took nearly 100 feet more room to stop and 1.2 seconds longer. That’s a big improvement. We can see why Consumer Reports and others are calling for a new standard.

Of course, stopping distances were greater for the heavier pick-up truck.

How do you know when your tires are at 4/32 of an inch? Easy; just insert a quarter into the tread. Put it in upside down. If the tread doesn’t cover George Washington’s hairline, it’s time to replace your tires. With a Canadian quarter, the tread should cover the numbers in the year stamp.

You may remember doing that with pennies. A penny gives you 2/32 to Abraham Lincoln’s head. The quarter is the new recommendation – 4/32.

How do people feel about replacing their tires earlier? Well, tires are a big ticket item and most people want to get the most wear out of them that they can. But do you want that much more risk just to run your tires until they are legally worn out?

For us, and we would guess for many, the answer is “no”.

Cartec Automotive Service
2524 S Harvard Ave
Tulsa, Oklahoma 74114
918-747-1840

The government mandates a lot of equipment on cars for the Tulsa Oklahoma area: emission devices and control computers; safety equipment like airbags; and crash worthiness requirements. All of this is great for the motoring public in Tulsa Oklahoma, but it does add quite a bit to the price of a new car.

Because new cars are more expensive, people are driving their old cars longer. The average car is now over nine years old. 68% of vehicles on the road have more than 75,000 miles/120,000 kilometers. As cars age, their performance drops, they have difficulty idling for long periods and are more sensitive to weather extremes. Fortunately today’s cars are up to the challenge – but they need a little help to keep on going.

Some owner’s manuals don’t specify service requirements at higher mileage. That doesn’t mean it doesn’t have to be done. In fact, it’s more important than ever to stay on top of routine maintenance for cars with more than 120,000 miles/190,000 kilometers. Just extend regular service intervals out: for instance a service that’s recommended every 24,000 miles/38,000 kilometers should be performed at 24,000 mi/38,000 km; 48,000 mi/77,000 km; 72,000mi/116,000 km, 96,000 mi/154,000 km; and on and on.

Because of the additional stress older engines experience, the severe service maintenance schedule may be more appropriate than the regular schedule. Watch for leaks – seals and gaskets dry out over time and do not hold the fluids as well as they used to. It is also time to make sure you have a good technician. There are some services and replacements that are scheduled after you put some clicks on the odometer, like timing belts, valve train adjustments, suspension, anti-lock brake service, air bags, etc. And unexpected repairs down the road are just par for the course.

Check for unusual sounds, smells or the way your car feels. These could be hints that trouble is brewing. Better to catch it early before it turns into a costly repair. Regular wash and wax will help maintain your car’s appearance. One of the things you can do to really help your high mileage vehicle is to begin using high mileage formulation fluids. There are special engine oils, coolants, and transmission and power steering fluids that are formulated for cars that have a higher mileage.

High mileage oil is designed to condition seals and gaskets, reduce wear and avoid premature burn off. Older engines are dirtier inside – and dirty engines contaminate their oil faster. High mileage oil has special additives that clean the engine, removing sludge deposits over time. The result is less stress on the engine, better fuel economy and excellent wear protection. Come into Cartec Automotive Service for a checkup.

Studies have even shown that using high mileage fluids early will actually prevent some of the problems of high kilometer vehicles. So once you hit around 50,000 mi/80,000 km, consider stepping up to high mileage formulations. The fluids cost a bit more than standard fluids because of the additional additives, but they can be worth their weight in gold in terms of preventing repair costs down the road.

It does cost more to properly maintain a higher mileage vehicle – but it’s much cheaper than a new car payment!

The cooling system keeps our engine from overheating while you are driving around Tulsa Oklahoma. Its job is to move heat away from the engine. Let’s talk about the various components of the system and how they work to accomplish this.

The radiator is the part most everyone associates with the cooling system. Coolant flows through the radiator which has fine cooling fins that draw the heat out of the coolant and dissipate it into the air. To make sure there’s enough airflow over the radiator, a fan pulls air over the cooling fins even when the car is idling.

In some vehicles, the fan is powered by the serpentine belt. On others, an electric motor runs the fan. Electric fans turn on and off as needed. You may have heard the fan kick on shortly after you turn your car off. The sensor has determined that the engine needs a little help cooling down to a safe temperature.

A hose connects the radiator to the water pump. The water pump pushes the water into the engine block. Now the engine block and cylinder heads have passages for the coolant to pass through without getting into the oil or the combustion chamber. These passages are referred to as the “water jacket”.

While the coolant is passing through the water jacket, it absorbs heat from the engine on its way to the radiator for cooling. Between the engine and the radiator is a gatekeeper called the thermostat. The thermostat’s job is to regulate the temperature of the engine just like your home thermostat regulates the temperature of your house. It gets your engine up to the correct operating temperature and then keeps it from overheating.

When your first start the engine, it’s very cold and needs to warm up. So the thermostat blocks the flow of coolant to the radiator. As the engine warms up, the thermostat starts to let coolant flow through the system.

The final component I want to talk about is the overflow reservoir. This bottle is designed to hold some of the coolant. It’ll have a mark that indicates whether or not you have enough coolant. This is where you should add coolant if you just need to top it off.

Caution: never open the reservoir or the radiator cap when the car’s hot. The cooling system is pressurized and opening them while it’s hot can cause hot coolant and steam to escape resulting in serious burns.

Cooling system failure is the most common mechanical failure in vehicles around Tulsa Oklahoma. Your Tulsa Oklahoma service center can do a periodic inspection of the components for leaks, loose connections and weakening hoses.

Cartec Automotive Service
2524 S Harvard Ave
Tulsa, Oklahoma 74114
918-747-1840

Your manufacturer has also specified a cooling system service interval. With a cooling system service, the old coolant is replaced with correct clean fluid that contains the additives required to prevent corrosion. The additives are depleted over time and you need fresh fluid for adequate protection. Your radiator pressure cap should be replaced at this service as well.

Today we’re talking about shocks and struts. They’re so easy to forget about because they last so long and wear out so slowly. But your shocks are really responsible for keeping your tires on the road – so they’re very important.

Without shocks, your wheels would be bouncing over bumps and lifting in corners. The shocks push the tire down to the road to maximize traction. Good shocks equal good ride quality and safe handling.

Visit Cartec Automotive Service to have your shocks and struts inspected by a professional. You can find us at 2524 S Harvard Ave, Tulsa, Oklahoma 74114
Or give us a call at 918-747-1840 to make an appointment.

There’s a difference between shocks and springs. Springs support the weight of the vehicle, keeping it suspended up off the axles. The shocks moderate the rebound motion as wheels hit bumps. Now a strut combines a shock and a coil spring in one compact unit.

When your shocks are worn out you may notice degraded handling as you drive around our Tulsa streets. Your vehicle feels squirmy around corners and floaty over bumps.

You may notice the rear end squatting when you accelerate or the front end diving when you brake. Your car might even be sagging at one corner.

Uneven tire wear can also be a sign of worn shocks. Of course, if your shocks are leaking or have a big dent, they need to be replaced.

Your owner’s manual will have a recommendation for when to replace the shocks and struts on your vehicle. It’s usually between thirty and fifty thousand miles. Of course, if you tow a lot, regularly carry heavy loads or do a lot of driving on poor roads, your shocks might wear out faster.

If those driving conditions apply to you, you can get special shocks that are better suited to your driving.

The shocks that come from the factory are designed for the way most consumers are expected to drive that particular vehicle. If you have different needs for your driving around Tulsa Oklahoma, you can get premium shocks that improve performance handling, off-road abilities or towing comfort. Your Tulsa Oklahoma service consultant at Cartec Automotive Service can help you determine your needs and then give you some options.

It’s best to replace all four shocks at the same time. That way you’ll have even, predictable handling at all four corners. Anything less could be dangerous.

Everyone in the Broken Arrow area wants our tires to last as long as possible. Two ways to maximize tire life are wheel balancing and tire rotation.

When wheels are out of balance, they wobble a bit. That makes the tires wear in a cupping pattern. And they vibrate. To fix this, your service technician at Cartec Automotive Service puts weights on your wheels to balance them out. If a front wheel is out of balance you’ll feel it in the steering wheel. If it’s a rear wheel you’ll feel it through your seat.

That brings us to tire rotation. The front tires on a car wear out more quickly than the rear tires. As they push through turns from Tulsa to Bixby, the shoulders of the front tires wear down. So rotating front and rear tires allows them to all wear at about the same rate over the life of the tire.

Proper tire inflation will also help your tires last longer. Under-inflated tires wear excessively on the shoulder and may even overheat. This could cause tire damage or a blow out. Over-inflated tires wear to fast in the middle.

Four wheel drive trucks and SUV’s tend to wear their tires more unevenly so rotation is even more important with them. Give us a call to get our recommendation on your Sedan.

See your owner’s manual or ask your service technician at Cartec Automotive Service for your recommended tire rotation schedule. It’s usually every 5,000 to 8,000 miles.

Tires cost a lot and they are one of the most critical safety components on your vehicle. Take care of them and they’ll take care of you.

Cartec Automotive Service
2524 S Harvard Ave
Tulsa, Oklahoma 74114
918-747-1840

You would never like to drink a glass of mud, right? Well, your car feels the same way. It needs a steady supply of clean fuel in order to run well and deliver good fuel economy. The fuel filter’s job is to clean dirt and rust out of the fuel before it gets to your engine. A clogged fuel filter can actually choke off the engine so that it won’t start or run. Some fuel filters have a bypass valve that allows fuel to go around the clogged filter so your car will still run. But, then the contaminated fuel can plug your fuel injectors and allow damaging particles into your engine.

A car with a partially clogged fuel filter might run well around town, but sputter and strain on the highway because it’s starving for gas. There are two things that affect how often you need to replace the filter. They are: where you drive and the gas you buy. If you drive a lot on dirt or gravel roads in rural Oklahoma, your fuel filter will have a harder time keeping the fuel clean.

And, we hate to say it, but buying the cheapest gas from cut-rate Broken Arrow area stations sometimes means dirtier fuel that’ll clog the filter sooner. Major brands tend to be cleaner and certainly have higher levels of detergent additives.

Of course, your manufacturer recommends intervals for changing the fuel filter. But, it’s a little more complicated than that. Some manufacturers stopped listing recommended intervals for fuel filter replacement or have very long intervals like every five years or eighty thousand miles. So you may need to look to other sources for recommendations. Cars older than six or seven years are especially at risk because they have had time for dirt and rust to build up in the fuel tank. A clean fuel filter keeps the gas flowing. Even a partially clogged filter puts added strain on the fuel pump. That can shorten its life and result in a costly repair.

As is often the case, spending a little money now on something as inexpensive as a fuel filter can save money down the road. At Cartec Automotive Service in Tulsa, we can check your fuel filter. It is better than fixing a burned out fuel pump or ruined fuel injectors.

We’ve all seen people do crazy things while driving to or from Broken Arrow. A guy shaving in the rear-view mirror, a woman applying makeup, people talking on their phones, texting or drinking from an enormous coffee mug. All of these are an accident waiting to happen.

The truth is everyone in Broken Arrow Oklahoma is distracted when we drive. Traffic, road construction and other things outside the car are beyond our control. But the distractions inside our car are things we can often control.

Here’s some things that’ll give you more control in your car, and help keep your attention on the roads around Broken Arrow Oklahoma.

• Drivers who are 16 to 20 years old tend to be more distracted by the radio, CD or MP3 player.
• Drivers who are 20 to 29 are more distracted by passengers in the car, including small children.
• And those over age 65 tend to be more distracted by objects or events that are outside of the vehicle.

Other factors like fatigue, stress and lack of sleep make it harder to pay attention to driving – no matter what age we are. People are also distracted by thinking about relationships, family issues, money and bills. So what can we do to manage these distractions? Well, the first thing is to eliminate as many as we can.

When you get in your car, make sure you’re belted in; that the seats, steering wheel and mirrors are adjusted; and your radio or CD player is ready.

Secure any loose objects in the car that can fall on the floor and interfere with your driving.

If you have a drink, make sure it’s spill-proof and put in a cup holder. Pets should also be contained.

If you’re riding with kids, make sure they’re wearing seat belts or secured in safety seats. You may want to give em some distractions to keep them quiet and sitting in their seats. Don’t get involved in their arguments while you’re driving. Pull over if you need to find a toy or break up a fight.

If you eat while driving, keep it to simple finger foods that aren’t messy.

Learning your car’s controls before you drive is another way to improve your safety. Know how to work the radio by touch. The same goes for heating and air conditioning controls.

If you have to use a cell phone, a hands-free system is best. But remember, the biggest cell phone distraction isn’t the phone itself – it’s the conversation. Keep conversations brief and light, or pull over if you can. Your reaction time is much slower when talking and driving, so allow more space between you and the car ahead of you. Know your local laws – it may be illegal to be on the phone or text in the Broken Arrow Oklahoma area.

And if you really think you have to shave, change your clothes or put on make-up while driving – you’re wrong. Just start getting ready earlier so you have enough time to finish those things before you drive into Broken Arrow Oklahoma.

Cartec Automotive Service
2524 S Harvard Ave
Tulsa, Oklahoma 74114
918-747-1840

Remember, driving is probably the most dangerous thing you’ll do all day – so don’t make it any worse. Use these tips to keep you and your loved ones safer behind the wheel.

The price of gas has got everyone talking. It seems that people who need a bigger vehicle to carry family and gear, or provide four wheel drive, are especially hit hard. That is why we thought it would be good to review some things that anyone can do to improve fuel economy.

First let’s start with how we drive. People may not realize that they can really save on gas by just changing a few driving habits. One of the biggest is jackrabbit starts – you know, flooring the gas as soon as the light turns green. That really wastes a lot of fuel. Building up your speed at a slower pace uses less fuel and is easier on your engine and drive train. And don’t drive with one foot on the brake. That’s also a drag on fuel economy, and it wears out your brakes faster too.

Another thing is to drive slower – but only when it’s safe. Sometimes on the highway we drive an extra five … ten . . . twenty … over the speed limit. We do it to save time, but it only saves a few minutes out of maybe an hour long drive, and we may use 10 to 15 % more gas. Just leave a little bit earlier, save some money and arrive more relaxed.

You can also try and group all of your errands for the day into just one trip, rather than several. If you can put off a trip today that can be combined with one tomorrow – you can save some time and money.

Using your cruise control can save money too. Driving at a constant speed really improves fuel economy. Be sure to only use your cruise control under safe conditions – you can look in your owner’s manual for some good tips on using your cruise control.

Did you know that reducing the weight in your vehicle saves gas? Clean out the trunk or back seat from time to time so that you are not paying to carry around a lot of stuff you do not need in the car. If you live where there is snow and ice, clear it off your car. They add weight and mess with aerodynamics too.

Another tip is to avoid long idle times, which includes warming it up when you start. Modern engines do not require a long warm up to get going – just take it easy for a couple of miles.

Be sure to get a new gas cap if yours leaks or is worn.

Now, let’s start talking mechanical. Bottom line – the better you maintain your vehicle, the less fuel you will use. It all adds up in a big way. For example, replacing your dirty engine air filter will pay for itself in fuel savings before your next oil change – and will keep saving you money after that.

A clean, well-maintained fuel system really pays big dividends. A clogged fuel filter wastes gas. So does a dirty fuel system, grimy fuel injectors and plugged up PCV valves. A fuel system service decreases the gas you use, and increases the power – so you can’t go wrong with that.

Some of us ignore our Check Engine light. But fixing the problem that caused the light to come on will usually save some fuel as well. It may be a bad oxygen sensor that can really rob your fuel economy.

And, it may be time for a tune-up. Tune-ups should improve your fuel economy. Don’t overlook the routine maintenance items, like scheduled oil changes, transmission and cooling system service. Dirty or low fluids actually use more fuel. Just look at your manufacturer’s recommended service intervals in the owner’s manual, or ask your Cartec Automotive Service service advisor for the schedule.

Don’t forget your tires. Underinflated tires waste gas. And if your wheels are out of alignment you won’t get the economy you need.

None of these things are very complicated or expensive to stay on top of. When you maintain your car properly, you save gas today, and prevent costly repairs tomorrow.