Q: Scion XB getting 50 percent less miles than it should

asked by on

My wife has a 2004 Scion XB. It’s getting 50 percent less miles per gallon that it should be getting. There's neither idling nor misfire, and has a new air filter. What could it be?

I had so many customers come to me saying they get a bad gas mileage so they let me take a ride with them. I take a ride with them and they take off from the stop sign and slam their brakes when they stop. I say ’’You are lucky you’re getting a gas mileage as it is.’’

I’ll give you an example. Couple of years before, I had a Shelby Cobra, that had 660 horse power and it was rated at 50 miles a gallon. I got 3 miles a gallon as I drove it pretty hard. If it runs perfectly fine at idle, then a lot of times it’s just the way the car is being driven and not the car itself. If you really get 50 percent worse gas mileage, then the Check Engine Light would be on and the car wouldn’t burn right and it wouldn’t run perfectly normal. In this case, I would have the car inspected by a certified technician, such as one from YourMechanic. They will be able to give your car a complete inspection so that you can have this problem resolved.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Scion XB getting 50 percent less miles than it should

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: Check engine light

Hello. If the harnesses do not match then the sensor you have is incorrect. A search on my end also reveals that your vehicle uses a four wire sensor, however if the harness on the vehicle uses a 2 wire...

Q: Low gas mileage on 1997 GMC K1500 Suburban V8-5.7L

Hello. We will be happy to help with your 1997 GMC K1500 Suburban. There's likely a combination of reasons as to why your MPG has so greatly declined. I suggest that you have a technician inspect the following items and...

Q: Passenger-side brake light won't work even after replacing bulb

Since the problem is only on one side, you can rule out the fuse and other parts of the circuit that are shared by both bulbs. I would look closely at the connector for the nonfunctional bulb, as it may...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.