Tire Replacement

January 25th, 2012 by stevehorvath

You know you need new tires, but you’re not sure what type. You look at a tire to get the size: 225, 50, R, 16, 92, H. All the way to the service center you keep repeating it over and over. You even say it over in your mind while waiting in line. Then you get to the counter and the manager asks what size you need. Then your mind goes blank.

Tire size can be confusing. There’s so much on the side of the tire, and it’s hard to keep straight.

Even though there’s a lot on a tire – if you know what it all means, it’s actually more helpful than confusing. Let’s start with the size number.

For example, let’s say a tire reads: 225 50 R 16 92 H. The 225 part is the width of the tire in millimeters – the width between the sidewalls of an inflated tire with no load. The 50 is the aspect ratio – the ratio of the sidewall height to the tread width. Off-road tires will have a higher number and high performance tires will have a lower number.

The R signifies it’s a radial tire. And 16 is the rim or wheel size in inches.

The 92 is the load rating index – it’s the load carrying capacity of a tire. The higher the number, the more it can safely carry. Your empty vehicle can be safe with a lower number, but you’ll need a higher rating if you routinely haul heavy loads. The next letter is the speed rating. Not all tires are speed rated. The ratings generally follow the alphabet: the further up the alphabet, the higher the speed rating – with the exception of H – it comes between U and V (don’t ask why).

There’s a lot of fine print that you probably need a magnifying glass to read. But there are a couple of other large print items of interest. One is the tread type: highway, mud and snow, all season, severe snow, etc.

And then there’re the Uniform Tire Quality Grading System markings. The first is a tread wear index. 100 is the base line – a lower number is poorer and a higher number is better. All things being equal, a tire rated 200 would wear twice as long, on a government test track, than one rated at 100. These wear grades are only valid within a manufacturer’s product line – you can’t compare with other manufacturers. And it’s important to note that a lower rating might be just what you want – a high performance, sticky tire has a softer rubber compound and won’t wear as long, but boy, will it take those corners.

The next is a traction grade. This measures the tire’s ability to stop on wet pavement in government tests. A – the best, B – intermediate, C – acceptable.

Temperature grade measures a tire’s resistance to heat build up in government tests. A, B and C – from best to acceptable.

It’s safe to go with the original equipment recommendations that came on your car. But if you want to make adjustments, you’ll now be better equipped to communicate with your tire professional.

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10 Overlooked Services In Littleton

January 18th, 2012 by stevehorvath

We live such busy lives nowadays: work, social events, running the kids all over Littleton. Some days it’s all we can do to keep track of everywhere we need to be. That’s why you’ve gotta be organized. Lists, PDA, calendar- we have to keep track of it all.

So let’s talk about schedules. Specifically, automotive service schedules. And particularly, the scheduled services that are sometimes forgotten.

We have a list of 10 service items that are often overlooked. They’re all very important and need appropriate attention. So here we go, in no particular order.

1. Power Steering Service
Be honest; have you ever thought of this on your own? Your power steering fluid gets dirty and builds-up moisture over time. Cleaning out your power steering system means that dirt and gum are removed and your power steering parts are protected from corrosion. Ask your service advisor if it’s time for a power steering check-up.

2. Wheel Alignment
When your wheels are out of alignment your car pulls to one side. It’s pretty annoying, but it’s also dangerous. And it causes your tires to wear out really fast; which is expensive! Most owners’ manuals suggest you get your alignment checked once or twice a year.

3. Differential Service
Okay, did you even know you had a differential? Well you do. One, two or three in fact. Differentials are often called gear boxes and they’re part of the drive-train that transfers power from the engine to your wheels. They don’t need service that often, but you can’t just ignore them. Check with your service advisor.

4. Cabin Air Filter
More and more Littleton cars these days have cabin air filters to clean the air in the passenger area where we sit. They filter out dust and pollen. When they’re clogged up, they can get smelly. Change your cabin air filter on schedule to enjoy fresh, clean air, which can also help with allergies.

5. Timing Belt Replacement
Most cars and some vans and trucks around the Littleton area have timing belts. Without going into a lot of detail, let’s just say that your car won’t run without it – period. And if it breaks while you’re driving it can do thousands of dollars worth of engine damage. Check your owners’ manual or with your service advisor. If you’re approaching 60,000 miles; absolutely look into it right away.

6. Transmission Service
Transmission service is very basic, but it’s often forgotten. Your transmission needs clean fluid from time to time to keep running efficiently and avoid costly repairs. And it can improve your fuel economy too.

7. Air Conditioning Service
Most of us don’t think about our air conditioning until it doesn’t work. Then if you’re lucky, you just need to add refrigerant. If you’re not, some of the components may have been ruined. Those components are not cheap. Regular air conditioning service adds clean refrigerant which cools and lubricates your air conditioner and conditions the seals.

8. Brake Service
No we’re not talking about squealing, grinding brakes here. We’re talking brake fluid. Over time the fluid gets a lot of water in it. Because water compresses differently than the brake fluid, your brakes won’t work as well. It may even get dangerous. The water can also rust out brake system components and then your brakes can fail altogether. Check with your service advisor for recommendations.

9. Coolant System
Another thing that’s so easy to forget about: When you don’t change your antifreeze on schedule it becomes corrosive. Fresh coolant contains additives that maintain the pH balance in the coolant. These additives wear out and the fluid in the radiator can actually eat holes in the radiator or hoses. Then you’re stranded.

10. Fuel System Cleaning
In times of high fuel prices, fuel system cleaning is so important. Fuel gums up a bunch of parts as it moves from the gas tank and through the engine. A thorough fuel system cleaning will keep clean gas flowing into the engine. Your fuel injectors get gunked up over time and need to be cleaned. Having your fuel system cleaned on schedule will really help your fuel economy.

And there we have it; 10 services that are often overlooked. Did you know that a recent survey showed that 90 percent of vehicles on the road have at least one scheduled maintenance service that hasn’t been performed? Based on our busy lives, we’re not surprised.

We know it takes some thought and effort to actually maintain your vehicle; but it not only saves money in the long run – it saves time too. And we can all use a little more time.

Jeno’s Auto Service can help with any of these services. Give us a all at 303-794-6700.

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Fuel Saving Tip: Car Weight And Your CO Driving

January 11th, 2012 by stevehorvath


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Weight is the enemy of fuel economy. Everyone from here to Centennial knows this makes sense.

Some of us in the Centennial area carry a bunch of unnecessary weight, and I’m not talkin’ what you see in the mirror.

SUV Weight Guys; sports equipment and tools. Ladies; well, just take a look around the passenger compartment and trunk. I think my car has about forty-five pounds of French fries on the floor.

All that extra weight wastes gas as you drive between here and Centennial, and everywhere else.

Lose the junk and save some money.

…And you really only need one of those spare tires.

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Budgeting for Maintenance In Littleton CO

January 3rd, 2012 by stevehorvath

Life’s full of surprises in Littleton CO, some of which cost money. A leaky roof, a broken tooth, or an unexpected car repair. Jeno’s Auto Service of Littleton CO and AutoNetTV have done some research on how we can budget for proper vehicle care.

Everyone in Littleton CO does our best to budget for scheduled vehicle maintenance. What’s hard is unexpected repairs. The truth is that our vehicles can stay on the road longer than ever before with proper maintenance. That’s because of improved vehicle design and manufacturing quality. But some of those same improvements also lead to higher repairs costs.

Let’s take the fuel pump. Previous generations were often stranded by the side of the road by vapor lock. This occurred when the gas vaporized between the gas tank and the fuel pump. Fuel just stopped flowing.

You had to sit and wait until the car would start again. To alleviate the problem, fuel pumps are now located inside the gas tank. This is a great solution, but when the fuel pump fails, it’s a much more expensive proposition to replace it.

Sealed wheel bearing assemblies are another example. These wheel bearings can’t be serviced – you just have to replace the entire assembly when it starts to fail. That costs several times as much as service on non-sealed bearings.

So we all benefit in Littleton CO from design improvements, but we need to plan for repairs down the road.

There’s a tool that can be found on Edmunds.com that you can use to prepare your service and repair budget.

Let’s suppose you have a 2003 Toyota Camry – a very popular car in Littleton CO. It’s now paid for and you’d like to keep it running for the next three years. You can go to Edmunds’ True Cost to Own calculator and enter your vehicle’s data. The calculator will provide estimates of what it’ll cost to service and repair your vehicle over the next five years. The estimate is based on where you live in or near Littleton CO, manufacturers’ recommendations and repair experience for your particular model.

Of course these are just estimates – there’s no way to predict what’ll actually happen to the car in your driveway, but it’s a good starting point.

The calculator also has estimates for depreciation, financing, insurance, taxes and fuel costs.

Let’s focus on maintenance and repair. This table shows that the average monthly cost of maintenance and repairs is eighty-three dollars. That may sound like a lot, but compare it to a new car payment.

Budgeting for Maintenance

So if you set aside eighty-three dollars a month, you’d go a long ways towards taking care of routine maintenance and being prepared for the unexpected repairs that arise.

Of course, you can’t predict when something will go wrong or what it’ll cost, but at least you have a reasonable target to shoot for.

Some people around Littleton CO are afraid of what can go wrong with their older car so they buy a new one. That’s fine if you really want a new car, but if you properly maintain your older vehicle, you’ll save a lot of money on new car payments and insurance. It just makes good economic sense.

Get with your Littleton CO service advisor at Jeno’s Auto Service and work out a plan for keeping your vehicle on the road.

You can visit Jeno’s Auto Service at 3593 W. Bowles Ave in Littleton, CO 80123 or just give us a call at 303-794-6700.

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Are Modern Vehicles Maintenance Free?

December 27th, 2011 by stevehorvath

In our auto video today we’ll be talking with Alan Peterson about myths surrounding automotive maintenance. You can lump these myths into the statement that “modern cars are so reliable, they are virtually maintenance free”.

Any good myth has some elements of truth. No offense to Littleton Bigfoot fans, but this maintenance-free myth has more evidence than most. If we look at some isolated areas of auto maintenance, we could conclude that maintenance isn’t so important. But other areas would just as easily lead you to believe that maintenance is more important than ever.

Here are some examples for our friends in Littleton.

  • Some cars in Littleton no longer require chassis lubrication. They’re made with self-lubricating materials and have sealed joints. There’s literally is no way to grease those joints.

-Chalk one up for the myth.

On the other side, some vehicles come with sophisticated variable valve timing. A lot of complicated parts up in the valve train that didn’t even exist not that many years ago. These parts are very vulnerable to oil sludge.

  • So, skipping an oil change here and there could lead to very expensive damage.

-A point to maintenance.

  • Electronic ignition has eliminated replacing points.

-Myth gets a point.

  • Fuel injectors on direct injection engines are very expensive to replace so one must be sure to get a fuel system cleaning on schedule.

-Point for maintenance.

I think you get the picture. As automotive technology advances, it eliminates or reduces some maintenance requirements. And maintenance becomes more critical for some items. Most others remain very similar to what they’ve always been.

So the maintenance mindset is still important for car owners in Littleton if we want our vehicles to last a long time. The checklist may change over time, but there’ll always be a check list.

Let me mention a couple of items on modern vehicles that folks need to be aware of. One of the most of the most important is timing belt replacement. Used to be that all engines had timing chains – you know, metal chains. They rarely broke.

It’s cheaper to make engines with timing belts rather than chains, so replacing the timing belt is on most engines’ maintenance list. The money the manufacturer saves by using a belt is more than off-set by what the vehicle owner has to pay to replace the belt. And it’s a drop in the bucket compared to the cost of repairing the damage if the timing belt breaks.

So make sure you know when your timing belt needs to be replaced. You don’t want to miss that. If you have 60,000 miles or more, break out your owner’s manual or ask your Littleton service advisor at Jeno’s Auto Service to check on the recommendation right away.

Another is sealed wheel bearing assemblies on some vehicles. As you might have guessed, it’s cheaper to make a sealed unit than one that has access to inspect or service the wheel bearings. The problem is that when the bearings fail, you have to replace the entire unit, not just the bearings. That’ll cost 5 or 6 times as much.

For our friends in Littleton, we hope this has underscored the importance of knowing and following your maintenance schedule. Come in and see us at Jeno’s Auto Service. You’ll find us at 3593 W. Bowles Ave in Littleton, CO 80123. Just give us a call at 303-794-6700.

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Keeping Your Engine Cool In Littleton CO

December 22nd, 2011 by stevehorvath


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The cooling system keeps our engine from overheating while you are driving around Littleton CO. 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.

Littleton CO Radiator 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 Littleton CO. Your Littleton CO service center can do a periodic inspection of the components for leaks, loose connections and weakening hoses.

Jeno’s Auto Service
3593 W. Bowles Ave
Littleton, CO 80123
303-794-6700

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.

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Keep Your Littleton Car Breathing Free: Engine Air Filter

December 13th, 2011 by stevehorvath

This is something really amazing: For every gallon of gas your Littleton car burns, it uses 12,000 gallons of air. All of that air has to be filtered to keep your engine clean.

That’s like a hundred gallons of air every block! The engine air filter is just another example of a very inexpensive part that has to do a tremendous amount of work. And when it works, everything goes well. But, when it doesn’t, well, it can lead to costly problems. Of course, your manufacturer recommends intervals for changing your air filter. But like most service intervals, where and how you drive your car affects when your filter needs to be changed.

Dusty conditions in and around Littleton or polluted city driving means you’ll need to change your filter more often. Your Jeno’s Auto Service technician can check your filter for you. In fact, it’s often a routine part of an oil change.

When you think about it, a clogged air filter won’t allow as much air through as a clean filter. Your car needs this air to efficiently burn its fuel, giving you better fuel economy and performance.

Dirtier filters don’t work as well as clean ones. A filter can only hold so much, after that, it allows dirt to pass right into your engine. Air filters come in all shapes and sizes. They also come in different grades. There are high performance air filters available for most cars. These high performance filters cost a little more, but they increase horsepower and may improve fuel economy to boot.

So have your air filter checked. If it needs replacing, it doesn’t cost very much and it should easily pay for itself in better fuel economy before your next oil change.

Stop by Jeno’s Auto Service at 3593 W. Bowles Ave , Littleton, CO 80123, and we’ll take a look at your air filter for you. Feel free to give us a call at 303-794-6700 to make an appointment.

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Custom Wheels and Tires

December 7th, 2011 by stevehorvath

One of the most popular vehicle modifications in CO is custom wheels and tires. Custom wheels help you stand out from the crowd without spending a lot of money, and custom tires can help you fine tune your performance. Not that long ago, new cars came with just one or two tire and wheel options. Now manufacturers are offering more choices and over a third of new vehicle buyers choose custom wheels. That seems to have fueled public demand for custom wheels in all vehicle categories. The available styles, colors and finishes are endless. You’re sure to get the look you want – from sleek and stylish to tough and aggressive.

While custom wheels are largely a matter of taste, custom tires are a matter of function. That is not to say that there are not a lot of cool looking tires out there, it’s just that tires are vital to your safety, so there are some important practical considerations. Let’s look at it in terms of extremes. Think about the environment on a dry race track. High heat, high speed, high cornering forces, hard braking. Then think about a snowy, icy winter that is very cold and slippery. The rubber compound that could withstand the high temperatures and cornering forces on the race track would be very stiff and inflexible in winter conditions. And the rubber compound that provides cold weather flexibility and good bite into ice and snow would rapidly wear out on the race track and wouldn’t be stable at high speeds. Of course the tread design would be greatly different for maintaining traction on a dry race track than it would be for cutting through deep snow.

No one expects any one tire to handle these extremes. So, what we need to do is think about how we drive in CO and talk to a tire professional about options. There is a tire out there that will meet your driving needs. When you boil it down to the basics, a tire provides traction. The traction is for accelerating, cornering, and for stopping. Once you can identify the conditions you expect to drive in, you can find the tire that will deliver the traction you need.

Tire design and formulation has become very sophisticated. There are fewer compromises in wear, comfort, and performance. You can definitely find a tire that will deliver satisfaction over a range of driving conditions. Now if you live where a tire meeting the severe snow standard is advised, you’ll want to have a set of winter tires during those snowy, icy months.

Let’s go over tire and wheel size. Installing wheels and tires that are the same size as standard is easy. However, many people want to upsize these days and that can get a bit tricky. With the help of your Denver tire professional, you will be able to pick the right tire and wheel combination for the way you drive. For example, if you drive in CO off-road areas a lot, a low profile tire might not work because there is just not enough cushion for the bumps and rocks.

You’ll want some help to make sure your new tires and wheels fit without rubbing. Your Littleton tire pro can also help you know if your engine management computer needs to be reprogrammed so that your speedometer is properly calibrated. A lot of people are tempted to order tires and wheels online but do not realize that some safety systems may be affected. For example, your rolling diameter needs to be within 3% of factory specifications in order for your anti-lock brakes to work properly. Traction and stability control systems can also be adversely affected.

It pays to get professional help when deciding on a wheel size. There has never been a better time to get custom wheels for the look you want. And your tire options are phenomenal. Whether you want a single purpose winter or summer performance tire – or something that can handle a wider range of conditions, you have a tire option for every price range.

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Make Your Vehicle Last

November 29th, 2011 by stevehorvath

We live in such a disposable society. It’s amazing all the stuff we throw away. New stuff comes out so fast, we just toss the old and move on. In the old days people were real sticklers about taking care of their things. If something got lost or ruined by neglect, tough – they had to do without. Most people couldn’t afford new cars very often, so they had to make them last as long as they could.

It’s a good thing that cars are more reliable these days. They just don’t break down as often. And the good news for us CO penny pinchers is that a modern car can easily go 200,000 miles/320,000 km with proper care. The engineering and the manufacturing quality is tremendous. The missing ingredient is us Littleton car owners making sure we follow the manufacturer’s recommended maintenance schedules.

Every time you go a couple thousand extra miles between an oil change, you have created an opportunity for sludge to be formed and clog passages. Then some parts don’t get properly lubricated and they start to wear out faster. Skip a cooling system service, and the corrosion inhibitors become depleted, and the radiator starts being damaged – one step closer to a failure. Same thing is true for transmission service, power brakes, fuel system cleaning – really everything on your schedule.

It is probably even more important for older vehicles. Those engines and other systems have had more time to get dirty, so they are a bit more stressed anyway. But it is never too late to get back on track with your maintenance and to hold off further damage.

And it really does start with the oil change. When you get a full service oil change they top off all your fluids and check for other items that are on your maintenance schedule. It’s like your safety net. Go in for an oil change on time, and let your service advisor help you keep track of the rest.

Some things are going to wear out along the way, things like alternators, water pumps, etc. But fixing those at Jeno’s Auto Service is cheaper than a new car payment. And taking care of problems early means they have less time to mess with other things. It is like having high cholesterol – you don’t want to wait for a heart attack before you address it.

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Tire Maintenance In Centennial

November 22nd, 2011 by stevehorvath

With the recent focus in Centennial on improving fuel economy, we’ve been told how important it is to maintain our tire pressure.

Everyone in Centennial knows that tires wear out, but we all want to make them last as long as possible because they’re fairly expensive to replace. In addition to saving gas, properly inflated tires last longer. Under-inflated tires will wear out more quickly.

Some people in Centennial wonder if there is benefit to adding a few extra pounds of pressure when they fill up their tires. But actually, there isn’t. In fact, there are very good reasons not to over-inflate your tires. For one, the middle of the tread will wear unevenly because the full tread is not contacting the road properly. That also adversely affects your handling.

Come in and see us about tire maintenance for your Littleton, CO vehicle.
Jeno’s Auto Service
3593 W. Bowles Ave
Littleton, CO 80123
303-794-6700

Every vehicle in the Centennial area has a sticker on the driver’s side door jamb that tells you the manufacturer’s recommended tire pressure. This recommendation is an integral part of the vehicle’s suspension tuning. A lot of engineering actually goes into the recommended tire pressure, so it’s important to follow it.

What else do we need to know about tire maintenance? Tire rotation and balancing are very important. Let’s start with rotation. Because the front tires handle the brunt of turning forces, the shoulders of the front tires wear more quickly than the rear tires. We rotate the tires so that they all get to do some duty on the front and they’ll all wear evenly over their life.

For most vehicles, front tires are rotated to the rear and vice versa. Others recommend a cross rotational pattern. Some vehicles use an asymmetrical tire so those tires need to stay on either the right or left side – it’ll say which on the tire. Some high performance cars have asymmetrical tires and different sizes on the front and rear. These can’t be rotated at all. Your owner’s manual will have details for your car.

How often should you rotate your tires? Your owner’s manual will have a recommendation. Your service advisor at Jeno’s Auto Service can do a visual inspection to let you know if it looks like it should be done. The interval is typically around 5,000 miles.

You know, some people don’t think new tires need to be balanced. What they aren’t taking into account is the wheel. Between the wheel and the tire – even a new tire – there’s enough variation to require balancing.

When you add the valve stem and tire pressure monitoring sensors required on new cars, balancing is definitely in order. When a tire’s out of balance, it’s actually hopping down the road. You’ll feel the vibration through the steering wheel if a front tire’s out of balance and through your seat if it’s a rear tire.

Proper wheel balance promotes tire life and increases safety. Historically, lead weights have been attached to the wheel to bring it into balance. Lead gives some environmental concern, so steel weights are starting to be substituted.

Also, always use the same size tire on an axle. Different size tires on the front or on the back can lead to some real handling problems. And tire manufacturers recommend that when you get two new tires, they be installed on the rear because that’s where you need the most traction to avoid spinning-out.

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