AUTONET TV

Does My Choice in Oil Affect Change Intervals?

Oil changes are probably the most recognized service on a vehicle. Almost all Memphis residents know about them. But do we know enough?

Several decades ago, oil changes were fairly standard: every three months or 3,000 miles or 5,000 kilometers. But recent advances in both engine technology and oil quality have led to longer oil change intervals.

Delayed or skipped oil changes are a problem for Memphis residents because they lead to the build-up of oil sludge in your engine. Oil sludge forms when engine oil breaks down, which happens with both time and miles. Obviously, driving will take its toll on engine oil, but the oil also breaks down even as the vehicle just sits in the garage. This is why oil change intervals are listed in both time and distance traveled, and the phrase “whichever comes first” is applicable.

Oil sludge is essentially petroleum jelly. Imagine this stuff squishing around in your vehicle engine, pushing into small engine passageways and blocking passage of oil to vital engine parts, shortening your engine's life expectancy.

To prevent sludge, you have to get your oil changed regularly, as often as the manufacturer recommends. Check your owner's manual for every vehicle you own to know the interval for each one. Don't assume they will be the same.

If you tow a trailer, haul heavy loads, make a lot of short trips around Memphis, usually engage in stop-and-go (or around-the-town) driving, drive in cold or hot TN weather, or drive in polluted or dusty conditions, you may need to change your oil more frequently. Check your vehicle's owner's manual for a “severe service” recommendation.

If the manual doesn't give you the advice you need, talk to your friendly and knowledgeable Madison Automotive service advisor. He will be able to answer any questions about preventive maintenance or vehicle care that you may have, including how often to change your oil.

Memphis residents need to get the right weight and type of oil recommended for their vehicles. More and more are using synthetic oil in their vehicles. Synthetic oil typically lasts longer and is more resistant to sludge formation than conventional motor oil. But it is also more expensive. So it can be tempting for Memphis residents to ask for conventional oil, but if you replace synthetic oil with conventional oil, you will have to change your oil more often to prevent sludge build-up. In the end, you're probably not saving money at all.

Also, your engine may not be designed for the conventional oil. Check your owner's manual before replacing synthetic oil with conventional.

Talk to your Madison Automotive service advisor for more information.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

Diagnosing Your Vehicle at Madison Automotive in Memphis

When we Memphis residents get a car repair bill, we really shouldn't be surprised to find “diagnostic fees” as one of the line items. When we get a computer fixed, there is usually a charge for the time it takes to diagnose the problem. When we go to a medical doctor, most of his fee is for his ability to diagnose what's wrong. It's no different with our vehicles.

Some diagnoses are fairly simple. Brake repairs at Madison Automotive usually require only a visual inspection, for instance. But other problems are much more difficult to diagnose. An intermittent engine problem, for example, takes time and expertise to pinpoint.

Modern vehicles have multiple computers that monitor a variety of sensors throughout the vehicle. When one of those sensors has a reading that is higher or lower than the standard parameters, the computer turns on the Check Engine light. Technicians at a service center such as Madison Automotive in Memphis can scan the engine's computer for a trouble code. This code tells the technician which reading is too high or too low.

That's where some Memphis residents get confused. They think that this reading concludes the diagnosis, and they don't understand why the diagnostic fee is as much as it is when all the technician did was to scan the computer. But the truth is the trouble code is only the beginning of the diagnostic procedure.

Remember, the trouble code only tells which reading is out of parameter. It doesn't say what is causing the reading to be too high or too low. Your Madison Automotive service technician still has to find the underlying problem. It's a lot like going to the doctor. He can take your temperature and discover that you have a fever, but that doesn't tell him what is causing your fever.

Automotive diagnostic technology can cut down the time it takes to figure out what's wrong with a vehicle that isn't running right. But it doesn't do away with the need for your friendly and knowledgeable Madison Automotive service technician to make a proper diagnosis. Car care, like medical care, still requires the human touch.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

It Pays to Take Care of Your Transmission at Madison Automotive

If you've been paying attention, you've noticed that vehicle engines are getting more and more powerful in Memphis. At the same time, they are getting better and better fuel economy. I've gotta tell 'ya, most of that's because of technological advances in transmissions. To get a better understanding of why that is, let's talk bicycles.

You've probably seen plenty of cyclists on Memphis roads. Perhaps you ride yourself. Then you know that a cyclist's cadence is the number of times per minute he or she pedals. The ideal pedal speed is the zone where they can most efficiently generate power over a sustained period of time. The experienced TN cyclist uses her gears to keep her pedal speed in the ideal zone whether she's climbing a hill, cruising on a flat stretch or killing a downhill.

Think of it this way: if you have a 1-speed bike, you really have to pump hard to get up to speed. Your top speed is limited by how fast as you can pedal. And if you're climbing a steep TN hill – forget about it.

Now let's add a couple of gears: one lower and another one higher. With the lower first gear, you can get up to your ideal pedal speed more quickly. When you shift to second, your pedal speed drops below ideal for a while as you work to get back to peak efficiency. Same thing happens when you shift to third, but now you can go much faster than you could with a 1-speed bike using the same effort. Add more gears and you can see that it's much easier to maintain ideal pedal speed. The result, quicker starts, better hill climbing, higher top speed and, most of all, a lot less fatigue for the Memphis rider.

Like a cyclist on a bike, every vehicle engine has an ideal engine speed called its power band. When an engine is running in that zone, it can make power very efficiently. It's the vehicle transmission's job to keep the engine in the power band over a wide range of operating conditions. Today 5 or 6 speed automatic transmissions are pretty much the minimum, and 7 and 8 speeds are fairly common in Memphis.

Obviously these sophisticated transmissions are very expensive. In fact, next to your vehicle engine, your transmission is the most expensive component in your vehicle, so it pays to take good care of it. Your manufacturer has a recommended service interval for changing your old, contaminated transmission fluid. Servicing your transmission on schedule at Madison Automotive keeps it operating at its best and can prevent costly damage. Ask your friendly and knowledgeable Madison Automotive advisor if it's time for transmission service. Come see why smart Memphis drivers trust their transmissions to Madison Automotive.

Give us a call.

Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net

Tire Rotation and Balancing at Madison Automotive in Memphis

Tires do a lot of work for Memphis drivers. They transfer engine power and braking forces to the road; they handle steering control; and they cushion all those bumps and jolts while driving around Memphis. They also support the entire weight of the vehicle, including you and your passengers. With such important work to do, you want your tires to do their job well. And since replacing tires is fairly pricey, you want them to last as long as possible.

There are three keys to long, even tire wear for Memphis driving:

• Proper tire inflation
• Proper wheel alignment
• Regular tire rotation and balancing

The front tires on a car take the brunt of the steering forces. As they push through turns, the shoulders of the front tires wear down more quickly than the rear tires. Rotating front and rear tires allows them to all wear at about the same rate. That's especially true of front-wheel-drive vehicles whose front tires steer and put the power to the road.

SUVs and pick-ups, especially four-wheel-drives, also tend to wear their tires more unevenly than cars because of their suspension and drivetrain set-up. Your owner's manual will likely contain a schedule for tire rotation. It's usually every 5,000 miles/8,000 km or so.

Also, there are different rotation patterns for different vehicles. Madison Automotive will know which is right for your vehicle. That brings us to wheel balancing. When wheels are balanced, they spin on the axle evenly. When they are out of balance, they wobble a bit. That makes the tires wear unevenly and may transmit a vibration to the car. Your friendly and knowledgeable Madison Automotive service advisor puts weights on your wheels to balance them out so that they turn true and smooth.

Tires are a big investment for Memphis drivers. They're designed for keeping you safely on the road in Memphis. The cost for regular rotation and balancing is more than made up in extended tire life. And, can you really put a price on your safety and that of your passengers?

 Madison Automotive
2457 Covington Pike
Memphis, TN 38128
(901)386-9600
http://www.madisonautomotive.net