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fuel economy

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How Long Does an Air Fuel Ratio Sensor Last?
If you have a car that was made after 1980, then you have an air fuel ratio sensor. It is a component in your emissions control that sends information to...
How Long Does an Intake Manifold Runner Control Last?
Having the right air and fuel mixture in a car’s engine is the only way for it to run at peak performance. Older vehicles really had no way to control...
How to Figure Out How Much it Costs to Have a Car
One of the largest expenses you have is your transportation. It’s how you get from home to work, school, the grocery store, or the movie theater, and it costs you money. Have you...
How Can I Save Money on Gas?
Everyone wants to get the best possible gas mileage. Here are five ways to get more mileage out of each tank of gas: Remove dead weight: Get rid of...
How to Get Better Gas Mileage with Your Toyota Prius
The Toyota Prius is considered one of the cleanest, environmentally friendly vehicles to drive based on the amount of smog-forming emissions that most other vehicles put out....
How Long Does a Carburetor Last?
The carburetor combines fuel and air in the engine by using an intake vacuum supply. The air is pulled down through to the carburetor by the intake vacuum while fuel is siphoned from...
Symptoms of a Bad or Failing Throttle/Accelerator Pedal Position Sensor
Common signs of a faulty pedal position sensor include inconsistent engine response, reduced fuel efficiency, and the Check Engine Light coming on.
Fuel Economy Myths
Drivers will try anything to get better gas mileage. Topping off your gas tank, ignoring tire pressure, and using premium gas won't improve your MPG.
How to Figure Out Which Type of Fuel Gets the Best Mileage
We all want our car to go longer on a single tank of gas. While all vehicles come with a mileage or mpg ranking, mileage can actually vary...
How to Improve Your Gas Mileage
Every driver wants a fuel efficient car. Check your tire pressure, replace old spark plugs, and change your engine air filter to improve your MPG.
Eco-Friendly Auto Tips
Driving a car is the most convenient ways to get around in today's world. The auto represents instant on-demand mobility, and with this comes a great deal of personal freedom....
How to Choose a Fuel Efficient Vehicle
Nearly all vehicles on the road are operated on fossil fuels such as diesel fuel, gasoline and propane. The process of discovering, drilling, obtaining, refining, and transporting these fuels for our...
How to Choose an Environmentally Friendly Vehicle
Auto manufacturers are currently under pressure to create new vehicles that are more environmentally friendly and to improve the fuel efficiency of the vehicles they currently offer. For consumers, the trend...
How to Decipher the EPA's Fuel Economy Label
The Environmental Protection Agency (EPA), in conjunction with the National Highway Safety Administration (NHTSA), puts out a series of labels for motor vehicles of varying fuel types. The labels allow car...
How Far Can You Drive Your Vehicle on Empty?
Knowing how many miles you can drive on an empty gas tank prevents getting stranded. Nissan Altimas can go the farthest when the low fuel light is on.
Top Automotive News & Stories: July 20-26
Each week we compile the best announcements and developments from the world of cars. Here are the topics you can’t miss from July 20 to 26. Regulators Abandon 54.5 MPG Target ...
What is MPGe: electric car fuel economy ratings explained
When you tell your friends and family that you bought a new car, inevitably the first question you’ll get is, “What kind of gas mileage does it get?” The question assumes that you’ve...
Why More Fuel Efficient Cars are Not Enough to Offset Growing Fuel Use
Fuel efficient electric and hybrid cars have not reduced fuel consumption because of increasing populations, longer commutes, and lower gas prices.
How to Replace a Variable Valve Timing (VVT) Solenoid
Variable valve timing solenoids fail when the Check Engine Light comes on, fuel economy is reduced, there is a rough idle, or loss of power.
Is It Better to Drive or Fly?
Cost, time, and effort affect any decision to travel by car or plane. We analyzed 5 popular U.S. road trips to determine the best travel method.

Related questions

Question
Maintainence for my car
If the engine has high miles, I would first consider losses in cylinder compression as a possible cause of the degraded mileage. Other possibilities are a malfunctioning oxygen sensor (check output on an automotive scope) and a stuck open cooling...
Question
Fuel consumption issues after crankshaft position sensor reset
Hello. If your lights are coming on and off then there may still be an issue somewhere with the vehicle. If there was a recent reset due to an issue with the crank position sensor it may be possible that...
Question
Does camshaft position sensor affect in any way the fuel consumption?! 2003 Mercedes ML350
Hello - yes, a failed camshaft sensor can negatively affect fuel economy. With a failed cam sensor, engine management reverts to a "fail safe" engine timing scheme which is less efficient than when all sensors are working properly. The symptom...
Question
with a 14.5 gal tank, i'm getting about 240 miles, what?????
Your vehicle is EPA rated at 23 MPG in city driving and 30 MPG in highway driving. You have stated that you are able to travel 240 miles and your tank capacity is 14.5 gallons. Assuming that you refill the...
Question
excessive fuel consumption?
EPA ratings for this vehicle are stated in units of miles and gallons. The city driving rating for the vehicle is 22 MPG (miles per gallon). The highway driving rating is 32 MPG. Your experience is reported as 15 MPG...
Question
Truck running ruff with newer use engine that just was put in. 2006 Ford F150
Hi there - first task is to check for problem codes, whether the Check Engine light is illuminated or not. This will guide the most direct path to a fix. Since this is an engine swap scenario, I would next...
Question
how far can you drive your vehicle on empty
There really is no way to give an accurate answer to your question. Each vehicle, even different vehicles of the same type, can use fuel differently. It will also depend on the habits of the driver, quality of fuel being...
Question
2010 VW Routan. current meilage is 56500 the freeway MPG is 24 which is good howver the local mpg now drop from 17 to 11. Why?
Gas mileage can be affected by vehicle condition, tire pressure, or even driving style. If you have been sharing the use of the car in the past year, it could be that your partner has a heavier foot than you...
Question
2007 terrible gas milage - replaced cylinder head - ignition coils - and soark plugs - I'd it worth it to replace fuel filter
Hello, thank you for writing in. The fuel economy is going to lessen over time for many reasons. If you believe there is something mechanically wrong with the vehicle, start by scanning the vehicle for diagnostic codes (even without a...
Question
Significant gas mileage drop after tire change
If the vehicle fuel efficiency has dropped 15%, and there is no obvious explanation, something is wrong. The timing of the tire replacement to the drop-off in mileage is undoubtedly just a coincidence unless the tires are wildly defective thus...
Question
What would cause the MPG gauge to fluctuate on a 1999 BMW 323i?
Hello, thank you for writing in. There are several different systems that interact with the fuel system which effect fuel economy. The first that you will want to check is the ignition system. Make sure your spark plugs are new...
Question
Mileage
Your fuel mileage will get better over the first three months of driving the vehicle. If after three months you are not getting the advertised fuel mileage then return to the dealer ship to see if the vehicle has a...
Question
How many miles can you drive on highway after gauge says 0?
Remaining vehicle range varies by car model. Based on YourMechanic data, a conservative assumption for most vehicles, including Toyota's, is once the low fuel level warning light comes on, or the fuel gauge reads "close" to empty, you have 30...
Question
Is it mechanically safe to coast in neutral?
Technically, least cost operation is attained if engine idling (at stops) does not exceed 60 seconds and, indeed, some studies put the threshold as low as 10 seconds. Certainly 60 seconds is a conservative estimate. This is why "start-stop" features...
Question
Very low fuel efficiency
Your mileage is low compared to the EPA rating. Your vehicle was sold with a 3 yr/36,000 mi basic, 5 yr/60,000 mi powertrain warranty. In the event that there is an engine or transmission problem that accounts for the low...
Question
I have a 2012 vw Passat. My gas depletes like crazy, even after I've had it serviced? What may be the causes?
Hello, thank you for writing in. Several components may be contributing to your decrease in fuel economy. You will want to consider any recent work that you have had done and go through a process of elimination to determine what...
Question
Why has my gas and oil level been going down a lot quicker than before? 2006 Toyota Camry
Hi there - the cause of your poor fuel mileage could be a leaking fuel injector, or your engine is running too rich (failed coolant temp sensor?). Excess fuel going into the engine both reduces your fuel mileage, but can...
Question
I drives Toyota corella S 2005 model.My check engine light is constantly on and I noiced there i
If the spark plugs have not been changed in 85K miles, then I suggest putting in new spark plugs. Also, you would need to put a fuel injection cleaner in the fuel tank to help clean out the fuel system...
Question
I have a 1999 saturn. It burns oil fast and has a lot of white smoke from my exhaust. It shakes mainly in idle. What's wrong?
Hi there. White smoke coming out of the exhaust is an indication that the cylinder head gasket is burned or the cylinder head is cracked. When coolant is in the combustion chamber, then engine will shake, the oil will burn...
Question
Was burning a lot of oil filled a week ago new oil now oil is over the xxx very black and eating gas like crazy smells of gas 2000 Dodge Caravan
Hello - your symptoms describe a fuel injector that is leaking badly or excess fuel pressure. Not only are you consuming excessive fuel, the gas leaking into the oil dilutes the oil, which means less lubrication to engine parts, and...

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