Category Archives: Fuel System

Engine Air Filter From Elder Auto


Many Denver motorists have found themselves in the following situation: they go to get their oil changed and their considerate Elder Auto service specialist recommends a new engine air filter. They say yes, but don’t know what an air filter is or what it does.

If this has happened to you, rest assured that you did the right thing by getting a new one. But you should never be too embarrassed to ask your Elder Auto service advisor for more information. It’s your cash and you have a right to understand what you’re paying for.

Let’s review: “What does an air filter do??”:

Air is the focus of this discussion. What is the air like outside in Denver right now? Can you see any smog? Is it full of pollen? How about dust? Anyone in CO with hay fever can tell you that there’s plenty in the air that you can’t see. Well, the engine air filter’s critical job is to clean that air before it goes into your minivan engine, to mix with the fuel and be burned. Without an engine air filter, the inside of your minivan engine would be extremely dirty from all the gunk that was burned in the cylinders.

In fact, for every gallon of gas you burn, your minivan engine needs 12,000 gallons of air. That little filter does a very big job. It’s no wonder that the air filter gets dirty and needs to be replaced. Think about a vacuum cleaner. When the bag gets full of dust and dirt, the vacuum doesn’t clean as well. It can’t move enough air to create good suction. A clogged engine air filter is the same way – the minivan engine can’t get enough air to burn the fuel efficiently. That means less power and reduced fuel efficiency.

That’s why your auto manufacturer has recommended that you change your filter at regular intervals. Of course the Denver conditions you drive in will affect how quickly the filter gets dirty. If you drive in CO where it’s very dusty or where there’s lots of pollen or pollution, you may need to change the filter sooner. The filter is easy to check visually, so your considerate Elder Auto tech can quickly make the call. He might recommend immediate replacement, or simply let you know that it is getting close and that you’ll need to replace it soon – like at your next oil change.

Because a severely dirty minivan air filter hurts your gas mileage, many Denver car owners find that a new air filter pays for itself in better fuel efficiency before the next oil change. They also make premium air filters that have been proven to increase your horsepower and torque. If more power is important to you, a high performance air filter is some of the cheapest horsepower you can buy.

The better your car breathes, the better it runs – kind of like Denver people. And don’t worry – if you have a question or don’t understand a recommendation just ask your Elder Auto technician.

5555 East Evans Ave
Denver, CO 80222
303.756.2886

Elder Auto: Good Service And Good Fuel Economy

Most Denver and Englewood motorists want to save on gas and seek our advice on improving gas mileage. At Elder Auto, we are frequently asked, however, if it is really worth the extra effort. Just how much money can Denver car owners actually save?

The US government has a website dedicated to helping us use less fuel. It presents the cost savings in a way Denver car owners can relate to and is relevant for all vehicles. Let me give you an example: Having your minivan engine properly tuned, can save up to 4%. If you’re paying three-fifty for a gallon of gas in Denver, you could save fourteen cents a gallon.

Elder Auto: Good Service And Good Fuel Economy

In today’s Elder Auto article, we’re focusing on the things you can do to improve your minivan fuel efficiency driving around CO. We’ll tell you the potential savings per gallon of gas at three dollars and fifty cents, and we’ll show a chart that also shows the savings at three and four dollars.

DOLLARS PER GALLON $3.00 $3.50 $4.00
TUNE UP 4% .12 .14 .16

The next item is replacing a clogged engine air filter. Your engine needs enough air to burn fuel efficiently for the best MPG. A clean air filter means you get plenty of air. The fact that the air’s clean protects your engine. That can save you up to ten percent or thirty-five cents a gallon.

DOLLARS PER GALLON $3.OO $3.50 $4.00
AIR FILTER 10% .30 .35 .40

Fixing a faulty oxygen sensor can improve economy by up to forty percent. That’s a whopping dollar forty in savings per gallon. Bring your car to Elder Auto in Denver and we’ll check your oxygen sensor.

DOLLARS PER GALLON $3.00 $3.50 $4.00
FAULTY O2 SENSOR 40% 1.20 1.40 1.60

Chances are that if your oxygen sensor is kaput your check engine light will come on. Now, there’s any number of things that could cause your check engine light to come on besides oxygen sensor problems. But if it’s on, get it checked out as soon as you can at Elder Auto.

Here’s an easy one for brilliant Denver auto owners. Inflate your tires to the recommended pressure. That could save you three percent or eleven cents a gallon. Even a little drop in pressure will bring down your MPG, so check your tires every week.

DOLLARS PER GALLON $3.00 $3.50 $4.00
TIRE INFLATION 3% .09 .11 .12

Your minivan automobile manufacturer has recommended a specific weight of motor oil. The recommendation is based on engine design and will give you the best protection. Using a heavier weight could cost one to two percent in reduced gas mileage, or up to seven cents a gallon.

DOLLARS PER GALLON $3.00 $3.50 $4.00
RIGHT GRADE MOTOR OIL 2% .06 .07 .08

Here’s one that’s free for Denver drivers that  want to save bucks: Take it easy when you drive. Aggressive driving (we’ve all seen this on Denver roads), rocketing away from stop lights, standing on the brakes, punching it for lane changes – really takes a toll on your MPG.

Cutting out aggressive driving around Denver can save five percent or eighteen cents a gallon. Now on the expressway it gets really costly: thirty three percent or a buck sixteen a gallon. Think about that – and leave a little earlier.

DOLLARS PER GALLON $3.00 $3.50 $4.00
DRIVE AGRESSIVELY – MIN. 5% .15 .18 .20
DRIVE AGGRESSIVELY – MAX. 33$ .99 1.16 1.32

A related item is exceeding the speed limit. For example, if the speed limit is sixty miles per hour on your Denver expressway,  an additional five miles will cost seven percent or twenty-five cents a gallon. Fifteen miles per hour will cost you upwards of eighty cents a gallon.

DOLLARS PER GALLON $3.00 $3.50 $4.00
SPEED LIMIT – MIN. 7% .21 .25 .28
SPEED LIMIT – MAX. 23% .69 .81 .92

The last thing we’ll talk about is excess weight. Our minivans tend to accumulate a lot of things and the weight adds up. Clear out the trunk and only haul stuff when you really need it. For every one hundred pounds you can save two percent or seven cents a gallon.

Sorry honey, your brother can’t come with. It’d cost an extra thirty cents a gallon.

Fuel Saving Tip: Fuel System Cleaning Near Englewood CO

A lot of gas is wasted in the Englewood area by dirty fuel delivery systems.

Let’s start at the tank. The gas tank gathers dirt, rust and sediment over the years. That’s why there’s a fuel filter to clean the fuel after it leaves the tank. A dirty filter will rob the engine of the clean gas it needs to run efficiently.

Elder Auto Fuel System Cleaning The fuel intake components get coated with gum and varnish over time. This results in fuel being delivered inefficiently and some of that gunk getting into the engine. A fuel system service at Elder Auto will leave your intake as clean as a whistle.

The big fuel thief is dirty fuel injectors. They deliver fuel to the engine at a specified pressure and in a particular spray pattern. When they’re clogged, the fuel doesn’t get atomized the way it’s supposed to and doesn’t get burned as efficiently.

See your owner’s manual or ask your Englewood service advisor at Elder Auto when a fuel system cleaning is recommended.

Elder Auto Often Asked About Premium vs. Regular Gas

Denver auto owners often ask the question: “Will using premium gas make my car run better?” The answer is simple. But first, let’s talk about what exactly premium gasoline is.

Different grades of gasoline have different octane ratings. Regular gasoline has the lowest octane rating and premium the highest. Most gas stations around Denver, CO also carry a mid-grade that falls in between the two. The octane range for the different grades of gas varies by region due to altitude differences.

Engines require different octane ratings because of design differences. For example, turbocharged engines usually require premium gas.

There’s a sticker on your gas tank filler lid that tells you the minimum octane rating your automobile manufacturer recommends.

For help identifying the type of gasoline your engine needs, come by Elder Auto in Denver:

5555 East Evans Ave
Denver, CO 80222
303.756.2886

Denver car owners should read their owner’s manuals carefully to see if it’s acceptable to use lower grades. With some cars in Denver, CO it is; the engine control computer can adapt. Denver car owners will lose some performance, but won’t do damage. With other engines, using a lower grade of fuel could result in serious and pricey damage; so you don’t want to save a couple of bucks at the pump only to pay it out a hundred fold at your Denver repair shop.

Your car will run best on the type of gas recommended by the manufacturer.

Today’s computer controlled vehicles are optimized to run well on the recommended grade of fuel. Using a higher grade than is recommended will not give Denver car owners any additional performance or better fuel economy.

Regulations require detergents for all grades of gasoline, so your engine will have the same protection, regardless of the grade of fuel you use. If you do hear some knocking or pinging from your engine, take it seriously and get your minivan into Elder Auto. It may be a sign that you need a tune-up or some other repair.

In times of costly gas prices, most Denver auto owners are conscious of making their fuel dollar go further as we drive around CO. Be sure to use the right gas for your car. Keep your tires properly inflated and your vehicle well maintained and you will get the best gas mileage possible.

Elder Auto Fuel Saving Tip for Denver: Check Engine Light

Here’s a question for Denver, CO auto owners: How long have you been enjoying the romantic glow of your check engine light?

Hey, it’s not there to create ambiance; it’s a warning that something’s wrong. (And, by the way, Homer Simpson’s fix of covering it with tape is not a good idea.)

If your check engine light comes on, check your gas cap. A loose gas cap can cause a false sensor reading that’ll make the check engine light turn on.

Check Engine Light Many conditions that trigger the check engine light can hurt your fuel economy. A lot.

If your date’s eyes are smoldering in the soft glow of the check engine light, try to think of all the gas money you’ll save by getting it fixed. Give Elder Auto a call when you are ready: 303.756.2886

Fuel Injectors

The last new American cars sold in Denver with a carburetor rolled out of the CO dealerships in 1990. Since then, all new vehicles here in Denver and nationally have had fuel injectors. In very simple terms, a fuel injector is a valve that squirts fuel into your engine. Your engine control computer tells the fuel injector how much gas to deliver as well as the precise time it should be delivered. Of course this happens thousands of times a minute. Fuel injectors deliver fuel far more precisely than carburetors. That translates into better fuel economy and more power for Denver auto owners. Virtually all fuel injectors for gas engines are known as port fuel injectors because they deliver the fuel to a port just outside the cylinder. Port fuel injectors operate at about 40 to 80 pounds per square inch of pressure.

A few auto makers have introduced gas direct injection systems on some engines recently. These systems inject the gas directly into the cylinders under very high pressure – hundreds of times the pressure of port injection systems. Although more complicated, direct injection technology promises greater power with improved MPG, so Aurora auto owners can expect to see more of it in the future.

As Denver drivers can see, the level of precision required of fuel injectors is very high. It’s essential that they operate properly in order for your car to run right.

High temperatures under your hood and variations in Denver gas quality cause fuel injectors to become fouled with wax, dirt, and carbon. Injectors can become partially clogged, preventing them from delivering the proper amount of fuel at the correct pressure. The design of each engine requires a specific spray pattern from the fuel injector that might be altered when the injector is dirty. When injectors are dirty, the fuel doesn’t burn as efficiently resulting in poor fuel economy and loss of power. So it is important to keep your minivan fuel injectors clean.

Skilled service technicians at Elder Auto in Denver can perform a fuel system service for you. (Visit http://elderauto.autotipsblog.com/contact-us.) That is a fuel system service – not just fuel injector cleaning. That is because the fuel has a lot of ways to become dirty or contaminated between the Denver gas pump and your fuel injectors. A fuel system service at Elder Auto starts with a fuel filter replacement. This filter cleans the gas as it leaves the tank. The various parts of the fuel intake system need to be cleaned from time to time to remove harmful gum, deposits and varnish. Finally, the fuel injectors are cleaned so that they operate properly for Elder Auto and deliver the right amount of fuel at the right time.

Your considerate Elder Auto tech uses a process for cleaning your minivan fuel system that includes state-of-the-art cleaning chemicals as well as some old fashioned scrubbing. Proper maintenance of your fuel system means that you will enjoyed improved gas mileage, enjoy strong performance and prevent expensive repairs down the road.