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mileage

Hello. The fuel mileage rating on most vehicles is a rating estimate of the fuel mileage you should get. The problem with this rating you see in the windshield is based on city or highway driving. Both of these ratings...

Hi there. Quite often a damaged catalytic converter will mask other mechanical issues that impact fuel economy. One culprit in particular is the EGR valve (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-exhaust-gas-recirculation-egr-valve). The EGR valve works in conjunction with the catalytic converter to help reduce particulate...

Hello. Though this can be caused by a number of things, the most common one that will make the vehicle get this bad of mileage is either a bad fuel injector or a bad pressure regulator. Most of the time...

Often times, owners have unrealistic expectations for their vehicles when it comes to fuel mileage. This is because the EPA estimated fuel mileage rating give to a vehicle doesn't stand up to real-world driving conditions. That being said, there are...

Hi there. When it comes to buying a pre-owned vehicle, it is best to perform a pre-purchase inspection (https://www.yourmechanic.com/services/pre-purchase-car-inspection) to make sure that the engine, transmission, drivetrain, and suspension is all in order and working condition. Also it is best...

If the vehicle was register at 72K miles and then register at 99K miles after 11 months, that is 2,455 miles per month. If you are traveling on the freeways a lot and taking long trips that are 30 to...

Check the vehicle speed sensor (VSS) on the transmission and see if its unplugged. If the wire is plugged in, then either the VSS is not working or the speedometer gauge is broken. If you need further assistance with your...

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...

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...

Hi there. Remove the dash panel cover and take out the gauge cluster. Check to see if the odometer is electronic and see if there is a little cover. If there is a cover to the case, then remove the...

I would do a little quick research and find out what is typical real-world MPG for others who drive your make and model. That will provide you a realistic base-line expectation that will be more accurate that Mazda or EPA...

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...

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...

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...

Most vehicles last between 250K to 350K depending on the maintenance that is performed. Some exceptions are when the vehicle is taken real good care of and lasts more than 350K miles. If the vehicle is at 130K miles and...

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...

Check over the vehicle for all safety items on the chassis and cabin compartment. Make sure that the vehicle is safe to drive in any condition. I recommend that if you have to replace any suspension or steering components or...

Remaining vehicle range varies by car model. Based on YourMechanic data (https://www.yourmechanic.com/article/how-far-can-you-drive-your-vehicle-on-empty-by-brady-klopfer), 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...

Hi there. The hemi engines are designed to run for about 300K miles before needing any rebuilding. If the engine is running strong and has no problems, then I would not worry about the engine. I would, however, check the...

Hello - if your car passed emissions testing, and the Check Engine light is NOT on, your vehicle is at least passing the on-board diagnostics. Many other factors can affect fuel mileage (https://www.yourmechanic.com/question/poor-fuel-economy-by-dan-t) however, tire pressure, clogged fuel filter, short...