Skip the auto shop - Our mechanics make house calls

Q: Gas milage not good

asked by on

I just bought a elantra gt hatch back about a month ago The car had 14,731 miles. The dealer said I would get 26 miles in the city but looks like I am only getting 19 or 20 . What can I do about this ?

The authoritative data source for vehicle fuel economy ratings is fueleconomy.gov. Plug in your year, make and model at that website and compare against the returned MPG data. IF your fuel economy is 15% or more below the STATED rating at the government website, that is the point to make inquiries, or consider, vehicle condition, driving habits, climate, and terrain.

A car with 15,000 miles is essentially brand new and thus should not suffer any fuel economy degradation due to "worn out" parts. Some obvious things you might check though are tire inflation and alignment both of which affect vehicle fuel efficiency. If you make a lot of short trips or sit in traffic, your mileage will easily drop 10 to 20%.

One way to test the overall efficiency of the car is driving non stop for say 100 miles on the highway and see how much gas it uses (start with full tank and just re-fill it after 100 miles or so). If economy is as stated (MPG) after a test such as that then your car is probably fine and the MPG loss you are seeing in city driving is just due to lots of stop and go traffic.

If you discover anything out of the ordinary, have a certified technician, like one from YourMechanic, perform the necessary checks to diagnose your car’s bad mileage.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Fuel Tank Gauge

The fuel range that every vehicle is capable of at a given fuel level is largely dependent on the driving habits of the driver, driving conditions, how well the car's engine is running, and many other factors. Unfortunately, there is...

Q: What can I do to help my 2009 Audi S5 get better gas mileage?

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...

Q: Lack if power at 20mph

Hello there. The P0300 series of OBD-II trouble codes indicate misfire problems. The 304 and 306 codes indicate a misfire on cylinder(s) 4 and (6). You might want read this article on the P-0300 OBD-II trouble code to review possible...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.