AUTONET TV

Fuel System Cleaning the Professional Way at Hill's Auto Repair, Inc.

Your fuel system needs to be clean to do its job properly. When it gets dirty, the results are lower engine performance, reduced fuel economy and impaired safety. It can even lead to costly repair bills for Bushwood drivers. So keep your fuel system clean as part of your routine preventive maintenance.

Fuel injectors have replaced carburetors in most of today's vehicles. These injectors deliver better fuel economy than a carburetor, but they can be compromised by rust, dirt and other contaminants. They need to be clean to maintain the correct pressure, spray pattern and volume of delivered fuel so that the vehicle engine can run at peak efficiency.

There are products on the market that Bushwood vehicle owners can add to their gas tank that will help keep your fuel injectors clean. These products will keep a clean fuel system clean but have trouble cleaning a system that has already gotten gummed up.

If your fuel system needs a major cleaning, Hill's Auto Repair, Inc. can help. We have the tools and chemicals necessary to clean up your fuel system. We can remove accumulated carbon, grit, gum and varnish and get your fuel system and those all-important fuel injectors back up to snuff. Once your fuel system is clean, you'll notice the difference in improved power and better fuel economy. You may not notice that your vehicle is now producing fewer emissions, but our Maryland environment will be better for it.

Bushwood drivers should consider adding a cleaning product to their gas tank after a fuel system cleaning. Those cleaners will help prevent your fuel system getting gummed up again, plus they can prevent rust and corrosion in your fuel system.

Ask your friendly and knowledgeable service advisor at Hill's Auto Repair, Inc. if your vehicle is in need of a fuel system cleaning. That kind of auto advice can save you big bucks in repair bills down the road.

Your owner's manual and Hill's Auto Repair, Inc. service advisor can help you with other car care advice that can help improve the safety and performance of your vehicle. Hill's Auto Repair, Inc. in Bushwood can also help you set up a schedule to perform that maintenance and help you customize that schedule so it accounts for the climate and road conditions in your area.

Bushwood drivers should remember that an ounce of prevention is worth a pound of cure. When it comes to vehicle care, that old adage has proven itself true.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

The Hill's Auto Repair, Inc. Guide to Tire Specs

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 Bushwood 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 for many Bushwood drivers. 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 for Bushwood tire shoppers. 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 around Bushwood. The next letter is the speed rating. Not all tires sold in Bushwood 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 most Bushwood area drivers 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 are 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 the manufacturers product line - you can't compare with others. 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 on twisting Maryland roads.

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 buildup in government tests. A, B and C - from best to acceptable.

It's safe for Bushwood drivers to go with the vehicle manufacturers 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 friendly and knowledgeable Hill's Auto Repair, Inc. tire professional.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

Coolant/Antifreeze Service at Hill's Auto Repair, Inc.

Anyone who drives a car in Bushwood knows that engines get hot when they run. But did you know that engines need to be cooled to keep running? Heat inside an engine can cause the metal parts to expand, which can seize up an engine and make it stop running. It can even ruin the entire engine! Good vehicle care requires keeping its cooling system in good condition.

A vehicle's cooling system circulates water and antifreeze (coolant) through the engine where it absorbs heat. It then flows to the radiator where the water and antifreeze are cooled by the air that flows over the radiator. Then it circulates back into the vehicle's engine to absorb more heat.

Why shouldn't Bushwood auto owners just use water? Because water boils at temperatures that are often reached inside of an engine. Steam won't cool your vehicle engine and is hard to contain within the cooling system. The antifreeze keeps the water from boiling.

So why do we call it antifreeze? Shouldn't it be antiboil? Truth is, the antifreeze performs another critical task. Water freezes in cold Maryland weather. That would spell disaster for your vehicle's engine. So antifreeze also keeps the water in your cooling system from freezing in all but the most extreme cold. Pretty neat stuff!

Taking care of your cooling system is part of good preventive maintenance for your vehicle. Bushwood area drivers should check coolant level often and regularly inspect your cooling system for leaks.

That is just good auto advice. Your vehicle's manufacturer has maintenance requirements for draining and replacing engine coolant. Consult your owner's manual or ask your friendly and knowledgeable Hill's Auto Repair, Inc. service advisor for these recommendations, as they vary widely among vehicles.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

Hill's Auto Repair, Inc. Advice on What to Pour into Your Vehicle

Changes in vehicle design and manufacture have resulted in changed fluid requirements for our vehicles. With the sophistication of engines, transmissions, differentials, etc., it's best for Bushwood residents to always use the proper type of fluid for their vehicle. Using incorrect fluids can actually damage your engine.

As engines have become more sophisticated, new weights (or grades) of engine oil have been introduced. Today, there is a much wider range of weights for engine oil as well as a variety of formulations for different types of engines.

Transmission fluid, brake fluid and coolant/anti-freeze have changed because the materials that go into making the systems they protect have changed. The fluids in our vehicles generally have two jobs: to lubricate and to prevent corrosion. The fluids formulated for your vehicle are specifically designed to protect the materials that make up its engine parts. Using the wrong fluid may leave some parts vulnerable to corrosion. Further, using the wrong fluids can also void your vehicle's warranty. So Hill's Auto Repair, Inc. recommends Bushwood drivers follow the fluid recommendations in their owner's manuals.

Vehicle fluids, including engine oil, are also designed in special formulas for higher mileage vehicles. These formulas contain additives that help clean older engines and transmissions as well as recondition older seals and gaskets. These fluids are perfectly okay for your vehicle as long as you match the original fluid recommendations in your owner's manual. In other words, a high-mileage oil is fine as long as it is the same weight as the oil recommended by your vehicle's manufacturer.

Good vehicle care always includes proper attention to your vehicle's fluids. Understanding and using correct fluids will keep your vehicle running well and will help prevent early corrosion and wear of vital engine parts.

Talk to your Hill's Auto Repair, Inc. service advisor for more information.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400

Regular Schedule or Severe Service Schedule at Hill's Auto Repair, Inc.?

Today's Hill's Auto Repair, Inc. article focuses on severe service maintenance. Many Bushwood drivers are not aware of them and yet there are also very vocal advocates in Maryland who think that severe service schedules apply to everyone. Somewhere between a complete lack of awareness and the dire blanket statements lies a reasonable approach to severe service maintenance at Hill's Auto Repair, Inc..

To back up a little, vehicle owner's manuals have schedules for preventive maintenance: things like oil changes, transmission service and so on. They say you should change your oil after a certain distanced traveled or after so many months. Bushwood drivers understand this very well. What they may not know is that there are actually two service schedules: the regular schedule and the severe service schedule. The mileage and time intervals are lower on the severe service schedule.

Now when you hear 'severe service,' you may think it doesn't apply to you because you don't feel your driving conditions are severe or extreme – it's just normal everyday driving in the Bushwood area. So let's list some of the conditions that classify as severe so that you can make the judgment on your own driving.

Before we start the list, here's a point of contrast that definitely is not severe driving. Driving down your nearest Maryland interstate at the highway speed limit on a 75 degree F/24 degree C day loaded only with your passengers. This is an easy trip for your vehicle: your engine is loafing along at low RPMs, no heavy loads to pull and moderate Bushwood temperatures. Now let's look at some severe service driving conditions.

Most trips around Bushwood are less than four miles/six and a half kilometers. When your vehicle engine cools down, moisture condenses in the engine. This water in the oil doesn't get a chance to evaporate on short trips because the oil doesn't get hot enough. A lot of short trips in your vehicle means a lot of water build up. And water in the oil leads to the creation of sludge which can damage the engine. Changing the oil more frequently keeps sludge from building up. By contrast, highway driving warms the engine up and gets the water burned off.

Here's another example. Most trips around Bushwood are less than 10 miles/16 km and outside temperatures are below freezing. This is the same reasoning, but in very cold Maryland weather it takes even longer for the oil to get hot enough to evaporate the water, hence 10  miles/16 km as opposed to 4 miles/6.4 km.

Next, you drive in very hot Maryland weather. The hotter it is outside, the more cooling the engine, transmission, brake fluid and so on becomes. The environment in which the fluids reside is more hostile, and the fluids simply break down faster. Therefore, the lower change interval.

Another: driving at low speed most of the time. Every vehicle engine has what's called its power band. This is a range of RPMs in which it's most efficient. Low speed driving doesn't keep the engine in its power band so it's working harder. This is one of the reasons that ratings are worse in downtown than on the highway.

Stop and go driving in Bushwood is another severe service condition. You're always accelerating, which works the vehicle engine and transmission harder. Then you're stopping, which works the brake fluid harder, causing it to get very hot. Highway driving, on the other hand, requires far less horsepower to maintain its speed than getting a stationary vehicle from a stop light up to 25 mph/40 kph. A lot of this and you'll need to follow the severe service schedule.

Also on the list is operating your vehicle in dusty, polluted or muddy conditions. Obviously, your engine air filter and cabin air will get dirty faster and need to be changed more frequently as will your breather element. Some of this dust and dirt will make its way into your fluids. They will simple get dirty faster and won't protect the components as well as fresh fluids.

Finally, you're driving under severe conditions in Bushwood when you tow a trailer, regularly carry heavy loads or carry a car-top carrier. This is pretty obvious. You'll spend more time in lower gears so the engine and transmission work much harder and create more heat. Brakes will be more stressed stopping the heavier loads.

Sounds like most of us in Bushwood operate under severe driving conditions at least some of the time. How can Bushwood drivers know which schedule to follow?

Think of it as a spectrum with "always driving under severe conditions" on one end and "never driving under severe conditions" on the other end. Some will be at one extreme or the other, but most of us will fall somewhere in between.

Carefully think about your driving conditions and decide if you should do your preventive maintenance closer to the severe service recommendation or the regular recommendation. Of course, your Hill's Auto Repair, Inc. service advisor can help you with your decision.

Hill's Auto Repair, Inc.
22829 colton point rd
Bushwood, Maryland 20618
301-769-2400