Let's talk about alternative fuel vehicles. In their quest to reduce the use of fossil fuels and harmful exhaust emissions to our Memphis environment, automakers will have a number of alternatives for us very soon.
For instance, Flex Fuel vehicles are already available in the Ellendale area. Flex Fuel vehicles can run on gasoline or on E85 fuel. E85 is a mixture of 85 percent ethanol and 15 percent gasoline. The ethanol is made from corn.
The benefits are in using less petroleum and reduced pollution. The drawbacks are that E85 gets lower fuel economy and that when gas prices are low, E85 can be more expensive than straight gasoline.
You should only use E85 if you have a Flex Fuel compatible engine. Flex Fuel vehicles have special seals and gaskets that can stand up to the high alcohol content of E85. Using E85 in a regular engine can lead to gas leaks and fires.
Diesel engines have been around the Ellendale area for a long, long time. Modern diesels are very refined and fuel efficient. Diesel fuel can be made from renewable sources like vegetable oil, too. Diesel fuel from algae and sunlight is reported to be pretty close to being commercially viable.
There are also a number of natural gas vehicles on our Ellendale roads. Gasoline engines are adapted to run on compressed natural gas. It's less expensive than gasoline and burns very cleanly. You can even refill it with a special pump from your gas line at home.
Natural gas engines don't make as much power and don't get as good of mileage, but they cost less per mile to run. The big inconvenience is that the tank that holds the compressed natural gas takes up a lot of room; even your whole trunk! And there may not be places to refuel on a road trip from Ellendale.
Plug-in electric vehicles are now available in our Ellendale area. Battery technology is the limiting factor right now. Electric cars have a limited range and are really best for use close to home. As battery technology advances, electric cars will perform closer and closer to conventional power plants.
That brings us to hybrids. There are a bunch of hybrids on our Ellendale roads, with more to come. Hybrid technology combines internal combustion engines with electric motors.
A mild hybrid has a regular gas or diesel engine that's assisted by the electric motor. The electric motor can propel the vehicle by itself up to a certain speed under gentle acceleration. There are mild hybrids in full-sized pickups and SUVs. They deliver city fuel economy similar to their highway ratings.
A full hybrid will rely primarily on the electric motor for power. It'll have a small gas or diesel engine that generates electricity for the batteries.
Another breakthrough technology is hydrogen fuel cells. Fuel cell vehicles use hydrogen to generate electricity. Several global car makers have prototypes on the road. The appeal is that the only thing that comes out of the tail pipe is water vapor. It'll take some time to build a national infrastructure of hydrogen fueling stations before there's widespread use.
A quick word about safety around hybrid and electric vehicles. Unlike the battery in your current family car, these carry enough voltage to kill you. Never mess around under the hood or with the batteries or electrical wiring. Your Ellendale service technician at D & B Automotiove is trained to safely disable the flow of electricity before performing maintenance or repairs on the vehicle.
Hybrids are really not do-it-yourself vehicles unless you're specifically trained on hybrid systems.
Posted in the Fuel System category
Fuel Saving Tip: Fuel System Cleaning Near Germantown TN
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.
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 D & B Automotiove 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 Germantown service advisor at D & B Automotiove when a fuel system cleaning is recommended.
Posted in the Fuel System category
Automobile Fluids For Your truck
Posted April 15, 2011 10:56 AM
If you've walked through the automotive fluids of an auto parts store in Ellendale, you'll know how overwhelming the sheer number of products available can be. How do you know what's right for your vehicle?
As you know, these fluids all serve a function in making your car run as you drive around the Ellendale area. Your vehicle manufacturer has specified a particular type of fluid for every system from the motor, to the cooling system, brake fluid and so on. When you realize that not every variation is applicable to your vehicle, the task becomes more manageable.
First let's talk about why there are so many varieties. Starting with motor oil, we see that manufacturers match the properties of a particular weight or type of oil with the design needs of the engine. For example, engines with sophisticated valve trains often require a thinner weight of oil.
Some vehicles around Ellendale come from the factory filled with synthetic oil and the recommendation to use it for life. The safe bet is to always use what the factory recommends. The recommendation is what's been proven to work in function and durability tests. The recommended oil is also a factor in determining oil change interval schedules.
A good quality oil has more additives that are engineered to clean and protect the engine. They cost a bit more, but are worth the extra protection. If you buy budget oil, you might want to consider shortening your oil change interval.
Sometimes fluids are developed specifically to meet the needs of a particular family of engines. An example would be coolant. Because of the different materials used to build the cooling system, the coolant has to be formulated to protect those parts, which vary from manufacturer to manufacturer, from corrosion. We've seen special coolant in Ellendale for General Motors, Volkswagen, Chrysler and others.
The same is true of transmission fluid and brake fluid in recent years.
The really good news is that your Ellendale service center has databases that tell them the recommended fluids for your vehicle. This takes all the guess work out. If you have some special needs, like a higher mileage engine or want enhanced performance, ask your service advisor for upgrades or additives that'll meet your needs while being consistent with the manufacturer's recommendations.
Of course, your full-service oil change will top off your fluids. But it's a good idea to have some of everything at home in case you need to top something off yourself or to take on a trip. Ask your Ellendale service advisor at D & B Automotiove or check your owner's manual for fluid specifications.
It's important to know that there are national warranty laws that say that a manufacturer cannot require you to use their brand of fluid to maintain your warranty. That said, there are two things that may affect your warranty.
Using the wrong type of fluid may void the warranty. Going back to radiator coolant, the correct type protects against corrosion and the wrong type will not. So it's important to be right.
Also some warranty protections are conditioned on taking care of scheduled preventive maintenance. Please review your warranty if you have questions.
Posted in the Fluids category
Keeping Your Engine Cool In Memphis TN
Posted April 8, 2011 2:53 PM
The cooling system keeps our engine from overheating while you are driving around Memphis TN. 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.
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 Memphis TN. Your Memphis TN service center can do a periodic inspection of the components for leaks, loose connections and weakening hoses.
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.