Here’s an interesting statistic for our friends in Frederick Maryland: 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 Frederick or Urbana. 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 Adamstown or Middletown 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 Auto Repiar, too.

Today’s Danny’s Car Clinic post focuses on using the proper fluids for your vehicle. Big advances in automotive technology have lead to the development of high-tech fluids to keep pace. Some because of engineering advances and others, advances in the materials used to build automobile automotive systems.

A simple example of this is the cooling system. For decades it was primarily made out of iron, steel and rubber hoses. There was one kind of coolant that protected these components from corrosion.

Now cooling system components are made with various metal alloys and plastics. These materials require different additives to protect them from corrosion. Since the materials used vary from manufacturer to manufacturer, we now have a number of different kinds of coolant.

And it’s important that Adamstown car owners use the right coolant. If you pour in the wrong kind, it won’t protect the cooling system and may even void the warranty. Check your automobile owner’s manual. Of course, your Danny’s Car Clinic advisor will know the proper coolant to use.

Brake fluid is confusing for some Adamstown drivers. Back when we opened shop 14 years ago, most vehicles used Dot 3 brake fluid. Now we have Dot 4 and Dot 5. Some Adamstown people mistakenly think the higher numbers are an upgrade. You know, if 3 is good then 4 must be better. That’s not how it works. They are different formulations to meet the demands of differences in brake systems. Only one of them is recommended for your automobile.

Transmission fluid is the same thing. For decades there were two basic types of tranny fluid used at Danny’s Car Clinic: friction modified or not. With the tremendous engineering advances in automobile automatic transmissions, there have been several new types of fluids developed to protect and lubricate them.

Nowhere are the advances in automotive fluids more evident to Adamstown motorists and Danny’s Car Clinic professionals than in motor oil. Many new weights and formulations have been created to meet the demands of today’s modern automobile engine design. Modern engines have more parts and much tighter tolerances. Every year, engines make more power and get better fuel economy. And with all the complication and sophistication, they still have to be durable.

That’s where the new grades of engine oil come in. They have to be formulated to lubricate, protect and clean all of those automobile engine parts, big and little. The oil has to be thin enough to get into little passages, yet resistant to vaporization.

At Danny’s Car Clinic, we believe that in some ways modern automotive fluids are just as great feats of engineering as the new engines. Because weights of oil and types of coolant and transmission fluid are so carefully matched to the vehicle, take care to always use the proper fluid if you are topping off at home.

Check your automobile owner’s manual or ask your Adamstown service advisor. The wrong fluid can cause damage. If you drive a car or truck with 75,000 miles or more, consider high mileage formulations. These fluids contain extra detergent to clean dirtier older engines as well as additives to condition seals and gaskets. That’ll help prevent leaks. Always be sure that the high mileage fluid is the same weight or type of fluid recommended for your vehicle.

Today’s Danny’s Car Clinic auto maintenance article focuses on your serpentine belt. Your serpentine belt is a long belt that’s driven by your engine. It winds around several accessories that power important automotive systems. Let’s go over them.

First, the serpentine belt drives your automobile air conditioning system. It spins the compressor that makes the cool air that takes the edge off the summer heat in Frederick.

Next, the belt powers the alternator. The alternator creates electricity that’s used by your automobile’s electrical systems and also charges your car battery. All Frederick drivers know that without the alternator, the battery will go dead in a few miles.

The serpentine belt may also run the pumps for both the power steering and power brakes. And, on many automobiles, the serpentine belt powers the water pump. The water pump circulates coolant through the engine to keep it within normal operating temperatures as you drive around Frederick.

Now on some automobiles, the water pump is powered by the timing belt instead of the serpentine belt. So you can see the serpentine belt does a lot of work. And it if breaks, it affects a lot of systems. That’s why manufacturers and your service advisor at Danny’s Car Clinic have recommended that it be changed every so often so that it doesn’t fail.

Your Frederick service technician can perform a visual inspection of the belt to see if it has any cracks that signal the belt could fail soon and will measure the amount of belt material to make sure there is enough.

There’s a special, spring loaded pulley attached to the engine called the tensioner pulley. Its job is to make sure there’s a constant tension on the serpentine belt so that it doesn’t slip. The spring can become worn and no longer provide the necessary pressure to keep the belt tight. At Danny’s Car Clinic, we recommend that the tensioner be replaced at the same time as the serpentine belt.

All in all, the serpentine belt’s an important part for the function of your automobile. And it’s not that expensive to replace in Frederick – so it’s good to do so before it fails.

About 90% of our Frederick Maryland driving decisions are based solely on what we see. So having a good pair of windshield wipers is extremely important.

Everyone in Frederick Maryland has experienced the frustration and fear of not being able to see clearly during a storm, or when our windshield is just dirty. In fact, it’s estimated that 46,000,000 motorists from Frederick and across the nation are driving with wipers that can’t adequately clear their windshield in a storm.

It seems like your wiper blades are always at their worst when you need them the most. If that sounds like you, you’ve got plenty of company in the Frederick area. 78% of drivers only change their wiper blades after the blades function so poorly that they become a safety hazard.

We need to change our thinking. Instead of blades being something to replace when they fail, we need to consider wiper blades as an important safety component. Then we’ll stay ahead of the storm.

You really ought to replace your wiper blades twice a year; in the spring and the fall. If you live in the colder parts of Maryland, you may even want to get special winter blades in the fall.

Winter blades are designed to resist freezing. Speaking of winter and freezing conditions, if your car has been sitting for a long time and the windshield becomes frozen, don’t use your wipers to clear off snow and ice. That can just shred your blades and may even damage the wiper motor.

Your wiper blades live outside; freezing cold and blistering sun. Over time, they become hard and brittle, and then tear. They also lose their flexibility and just don’t clear the windshield effectively. Worn wiper blades aren’t just a safety hazard; they can also scratch your windshield. That may require replacing the entire windshield – a big cost for such a little part.

AutoNetTV recommends you replace worn blades right away. Your local service center can provide you with a quality replacement blade. They cost about the same as they would at the store – but installation is included at the service center.

Of course you also need washer fluid to help your blades do their work. Even though Danny’s Car Clinic will top off the washer fluid with a full service oil change, it is a good idea to have some extra fluid at home. It’s a good idea to keep a bottle in the car if you’re on a road trip.

Always use windshield washer fluid. Plain water, even that fancy French bottled water, just doesn’t cut it. It can freeze in the fluid reservoir or on the windshield itself, making things worse. Besides, water won’t do as good job of cleaning your windows.

So follow these tips to keep your windshield clear and your eye on the road.

Find us at:

Danny’s Car Clinic
5589 Spectrum Drive
Frederick, Maryland 21703
301-662-0421

Everyone in Frederick Maryland eventually replaces their tires, whether it’s because they’re worn out or they’re just looking for something different. There are so many great tire choices in Frederick Maryland, it can be difficult to sort them out. Let’s group the broad spectrum into several categories that will help in the selection process.

One category is often referred to as “summer tires”. Summer tires are designed to be driven on the road when temperatures are generally above 45 degrees. Their tread design is optimized for traction on dry roads in Frederick Maryland and they’re also able to effectively displace water on rainy roads.

Now the rubber compound gets a little hard and stiff as temperatures drop below 45 degrees as it occasionally does here in Frederick Maryland. And the tread which handles dry roads so well, can get packed with snow or mud – which provides very little traction in those conditions.

So if you live where its summer all year round, these tires will work well for you. If you like maximum performance in warm weather, but still live where it gets cold and snowy, you’ll want to change your summer tires for winter tires as the weather starts to change.

Summer tires can be purchased with an emphasis on handling performance, smooth ride or long life. Your Frederick Maryland tire professional at Danny’s Car Clinic can help you find the right tire for the way you drive.

As you can imagine, winter tires are designed to work very well in snow and ice. Their tread is designed with many channels and grooves that throw the snow out of the tread as the wheel turns. This means the tire is always be able to bite into the snow.

The rubber compound used in winter tires is specially formulated to be flexible at temperatures below 45 degrees. This maximizes cold weather traction. When it gets warmer, the softer rubber will wear faster on warm dry pavement than summer tires, so change them out once the weather has turned.

There’s a range of tires within the winter tire category. If you live where there’s a lot of snow and ice, look for the mountain and snowflake icon that signifies a severe snow rating. If you have milder winters and still want a performance component, they make a winter tire for you as well.

For many people, an all-season tire is the answer. You will give up some of the performance at the extreme ends of the summer tire/ winter tire spectrum, but you will find a long wearing tire that gives both good highway performance and winter traction on our Frederick Maryland roads.

Within the all-season category, there are many choices that you tire advisor can help you evaluate.

Danny’s Car Clinic
5589 Spectrum Drive
Frederick, Maryland 21703
301-662-0421

Outside of these three main categories, some people in Frederick with trucks and SUVs like a tire that is designed for both on-highway and off-highway use. They can handle the rocks and bumps off-road, but still work well on the street. Again, many options depending on the relative emphasis on on-road verses off-road.

You may want new wheels to go with your new tires – well, there are hundreds and hundreds of styles to choose from. That’s a matter of personal taste. If you want to change the size of your wheels and tires, do get some professional help.

The computers on your vehicle are programmed to the size of wheel and tire combination that comes from the factory. Tire size affects various computer controlled functions like anti-lock brakes, traction and stability controls, speedometer and odometer. Of course, you want these systems to work properly. The computers can be re-programmed for different tire sizes.

And if you want to increase the size of your wheels and tires, you’ll want so help to make sure they’ll fit in the wheel wells of your vehicle without rubbing during turns or over bumps.

When winter approaches in Frederick Maryland, we break out the sweaters, coats, boots and mittens. We want to be ready for winter conditions. Your vehicle needs to be ready for winter as well. The last thing you want is to get stranded out in the cold. You need your vehicle to be safe and reliable. It’s a good idea to get caught up on any neglected maintenance items anytime – but the stakes are higher in the winter.

There are some specific things that we need to do in Frederick Maryland to have our vehicle ready for winter. The most obvious is having the antifreeze checked. If the antifreeze level is too low, it can’t properly protect your engine, radiator and hoses from freezing. If your car does not seem to be making enough heat to keep you warm, your antifreeze level may be low or you could have a thermostat problem. Get it checked out. If you are due for a cooling system service, now is a perfect time to have it done.

In the cold months around Frederick we always worry about being able to stop in time when it’s slick out. The first thing to remember is to slow down and allow yourself plenty of room to stop. Of course, you want your brakes to be working properly. A thorough brake inspection will reveal if the pads or any other parts need replacing. Check with your service consultant to see if it is time to replace your brake fluid. It accumulates water over time which really messes with your stopping power.

It is a really good idea to have your battery tested. A battery’s cranking power really drops with the temperature. If your battery is weak in the fall, it may not be up to winter. There is nothing like a dead battery in a snow storm.

Which leads us to an emergency kit. You should always have a blanket or something to keep you and your passengers warm if you get stranded. If you will be venturing away from civilization, pack more items such as food and water to help you survive. Keeping at least half a tank of gas is a good precaution if you get stuck and need to run the car to keep warm and it will help keep your gas lines from freezing up.

Danny’s Car Clinic
5589 Spectrum Drive
Frederick, Maryland 21703
301-662-0421

Winter in Frederick Maryland always makes us think of our windshield wiper blades – usually during that first storm when they aren’t working right. That’s why it’s a really good idea to replace your blades in the fall before the winter storms. If you live where there’s a lot of snow and ice, you might want a special winter blade that resists freezing up. And be sure to have enough windshield washer fluid.

The final thing to consider is your tires. Any tire can lose pressure over time – up to one pound every six or eight weeks. For every 10 degrees the temperature drops you lose another pound of pressure. So if it was 80 degrees outside when you checked your tire pressure two months ago and now it’s 40 degrees out, you could be down 5 pounds of pressure. That’s enough to be a real safety issue and it wastes gas too. You may need special winter tires as well. Your tire professional can help you find the right tire design for your expected road conditions.

If you’re getting winter tires, it is always best to put them on all four wheels. If you are only getting two, have them put on the rear – even if you have a front-wheel drive or four-wheel drive vehicle.

This is a very important safety measure recommended by tire manufacturers. Sliding or fish-tailing on ice and snow is a matter of not having enough traction at the rear end. That is why your newest tires should always be on the rear.

Let’s talk about transmission service. It can be easy to forget about getting your transmission serviced because it doesn’t need it very often. It’s easy to remember to change the engine oil – you know, every 3,000 miles or 5,000 kilometers. But proper transmission servicing keeps your car running smoothly and helps you avoid costly repairs down the road.

The transmission undergoes a lot of stress. The grit you see in used transmission fluid is actually bits of metal that wear off the gears in the transmission. In addition to that, the transmission operates at very high temperatures. Usually it’s 100 to 150 degrees higher than engine temperatures. Those high temperatures eventually cause the transmission fluid to start to break down and loose efficiency.

As the fluid gets older, it gets gritty and doesn’t lubricate and cool the transmission as well – leading to even more wear. The fluid can actually get sludgy and plug up the maze of fluid passages inside the transmission. At best, your transmission won’t operate smoothly. At worse, it could lead to costly damage.

When your transmission is running properly, it transfers more power from your engine to the drive wheels, and improves fuel economy. That’s why manufacturers recommend changing your transmission fluid at regular intervals. Your owner’s manual has a schedule for transmission service and, of course, your service center can tell you what the manufacturer recommends.

Hot and dusty conditions; towing, hauling, stop and go conditions and jack rabbit starts all increase the load on the transmission and its internal temperature. That means you need to change the fluid more often. A good rule of thumb is every 35,000 miles, 55,000 kilometers or two years. If your manufacturer suggests more frequent intervals or if you’re driving under severe service conditions, you will need to change it more often.

Most service centers have the ability to perform a transmission service while you wait and the cost is quite reasonable. It’s downright cheap when you think about how much a major transmission repair can cost! Your service technician will know the right type of transmission fluid to use. If it’s getting to be time to have your transmission serviced, do your car a favor and have it done. If not this time, then on your next service stop.

Your vehicle manufacturer publishes two auto maintenance schedules. The regular schedule and the severe service schedule. It’d be wrong for us to tell you that everyone in Frederick always needs to follow the severe service schedule – but its wishful thinking to say that the regular schedule is always good enough for your automobile.

Contact Danny’s Car Clinic to learn more about Severe Service Requirements for your automobile
You can find us at:
5589 Spectrum Drive
Frederick, Maryland 21703
Or call us at 301-662-0421

At Danny’s Car Clinic we’ll give you the definitions and explain the issues, and you can be the judge. Most manufactures list the following as severe conditions:

• Most of your trips are less than four miles.
• Most of your trips are less than 10 miles and outside temperatures are below freezing.
• The engine is at low speed most of the time – not on the highway.
• You operate your vehicle in dusty areas.
• You regularly tow a trailer or carry heavy loads.
• Driving in very hot or very cold weather.

So think about your typical week. Do you live a block from a Maryland freeway on-ramp and enjoy a non-stop commute to work in Urbana or Middletown? Or are you like the rest of us where 90% of our trips are on the severe service list?

The answer may be different at different times of the year and for the different drivers in your family. Think of the two service schedules as bookends. Let’s suppose your owner’s manual says the severe service oil change recommendation is 3,000 miles and the standard recommendation is 5,000 miles. You know that you need to change the oil somewhere between 3,000 and 5,000 miles. Look at your driving patterns and Frederick road conditions and honestly evaluate which end of the spectrum you’re closer to.

If you have a job in a neighboring town such as Adamstown or Urbana and most of your commute is freeway miles, you may choose the regular service schedule for your car. On the other hand, if you live within a few miles of work and only get on the highway a handful of times every month, something closer to the severe service schedule is more appropriate.

Now why is this so important? Moisture builds up in the engine oil from normal condensation. Short trips around Frederick or driving when it’s really cold means that the engine doesn’t heat up enough for the moisture to evaporate. The water in the oil leads to oil sludge that gums up your engine and doesn’t let the oil protect it as well. That’s why you need to change your oil more frequently – to get the sludge out before it causes problems.

Towing, heavy loads and very hot Maryland summer weather means that your engine and transmission will operate at higher temperatures and with more stress. The fluids will break down more quickly. Additives that clean and prevent corrosion will be depleted sooner. Dusty conditions, which may extend also to areas with high air pollution, mean that fluids will get dirty faster and that filters will plug up and won’t work right.

All of these things can lead to premature wear and repairs down the road. They’ll also hurt your fuel economy. If you want some personalized advice, talk with your Excellent Danny’s Car Clinic service advisor. We can help you restore your vehicle to good working order and help you know the best schedule to follow. If you’re not sure, err on the side of protection.

Watch our informative AutoNetTV auto video tips at the top of this post.

The PCV Valve is a little, inexpensive part that does a big job for Frederick drivers. PCV stands for Positive Crankcase Ventilation.

The crankcase is the bottom area of the engine that holds the oil. When the automobile engine’s running, fuel is burned to generate power. Most of the exhaust from combustion goes out through the exhaust system. But some exhaust blows by the pistons and goes into the lower engine, or crankcase.

These hot gases are about seventy percent unburned fuel. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause automobile engine corrosion, something we see occasionally at Danny’s Car Clinic. At high speeds on Frederick freeways, the pressure can build up to the point that gaskets and seals start to leak.

Back in the old days, engine makers simply installed a hose that vented these gases out into the atmosphere. But starting in the 1964 model year, laws mandated that these gases be recycled back into the air intake system to be mixed with fuel and burned in the automobile’s engine.

This is much better for the environment and it saves gas too. (Budget-conscious Frederick drivers take note!) The little valve that controls all this action is the PCV valve. The PCV valve lets gases out of the engine, but won’t let anything back in. Over time, the vented gases will gum up the PCV valve and it won’t work well. That can lead to all of the problems I’ve already described, oil leaks, excessive oil consumption and wasted gas.

Fortunately, it’s very easy to test the PCV Valve at Danny’s Car Clinic and quick and inexpensive to replace. Even so, it’s often overlooked because many Frederick drivers don’t know about it. Check your automobile owner’s manual or ask your Danny’s Car Clinic service advisor. If this is the first time you’ve heard of a PCV valve, you might be in line for a replacement.

There’s another aspect to the PCV system. In order for the valve to work correctly, it needs a little clean air to come in. This is done through a breather tube that gets some filtered air from the engine air filter. Now some vehicles have a small separate air filter for the breather tube called the breather element. That’ll need to be replaced at Danny’s Car Clinic when it gets dirty.

Please ask your Excellent Frederick service advisor about your PCV valve. For the price of a couple of burger combo meals in Frederick, you can avoid some very expensive deep engine repairs.

Today we want to talk about timing belts. They’re something that many Frederick drivers don’t know much about and yet your vehicle won’t run if it’s broken – and it could cause many thousands of dollars damage if it does break. A broken timing belt is usually a tale of woe. Even though timing belt replacement is scheduled in the owner’s manual, it’s not the kind of thing that most Frederick car owners remember because it’s not well understood.

Let’s review what a timing belt does. As you know, the engine’s power is generated in the cylinders. A piston rides up and down in the cylinder. During the first down stroke, an intake valve at the top of the cylinder opens and air and fuel is drawn into the cylinder. Then the piston returns to the top, compressing the fuel and air mix. At the top, the spark plug fires, igniting the fuel pushing the piston down in the power stroke. As the piston once again returns up in the final stroke of the cycle, an exhaust valve opens at the top of the cylinder and the exhaust is pushed out. The timing belt is what coordinates the opening and closing of the intake and exhaust valves. It’s called a timing belt because the valves have to open and close at just the right time.

Now, not all Adamstown and Urbana vehicles have timing belts. Some have timing chains. Like the name implies, they use a chain rather than a belt to perform the function. It used to be that most engines used timing chains, which are extremely durable. Manufacturers started using belts rather than chains to save money in the manufacturing process. So now we’re left with a component that can break. They sort of shifted the problem to us. There are two broad categories of engine design: interference and non-interference. If the timing belt on a non-interference engine breaks, the engine simply stops running. That could be very dangerous depending on where you are at the time, but it causes no internal engine damage.

Interference engines, on the other hand, will get real messed up when the timing belt breaks, because the valves will actually fall down into the path of the pistons. Things get chewed up when that happens and it’ll cost thousands to repair the engine.

So, what are the warning signs? Unfortunately, there really aren’t any. There aren’t tell-tale sounds. In some vehicles, a technician from Danny’s Car Clinic may be able to see part of the belt for a visual inspection, but many have a cover that’s in the way. The reality is that if the belt slips even one notch, it might as well be broken for all the damage it’ll cause. There’s no middle ground.

So how can we avoid these problems? Simply replace the timing belt when your owner’s manual calls for it. It can be 60,000 miles; it might be 90,000 or 100,000 miles. The point is, if you have 60,000 or more miles, ask your Danny’s Car Clinic service advisor right away if your manufacturer requires a timing belt replacement.

Contact Danny’s Car Clinic to learn more about your car’s Timing Belt
You can find us at:
5589 Spectrum Drive
Frederick, Maryland 21703
Or call us at 301-662-0421

Sometimes you can go quite a while without a failure, but we’ve seen them happen within a couple of oil changes of being due. It’s not worth the risk.

What does it cost to replace a timing belt in Urbana or Middletown? Well, that really depends on what kind of car you have. I can tell you that it’s usually not very easy to get to the timing belt – you often have to remove some accessories to get at it. It isn’t a cheap procedure, but it’s a fraction of what it could cost to repair the damage caused by a failure.

At Danny’s Car Clinic we’re all about trying to prevent costly repairs, keeping you and your passengers safe and increasing your driving enjoyment. Thanks to AutoNetTV for their great auto video tips.