Hyundai Sonata The Sonata has grown to be the premier mid-sized sedan of the Hyundai name with the many interior options and the powerful V6 engine.

Miles per gal

  #1  
Old 11-17-2018, 09:05 AM
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Default Miles per gal

I have a 2017 Sonata Hybrid Limited with 57,000 miles sense new Iíve only replaced the air cleaner and for new tires since I have done both my gas mileage has dropped to 38-40 Miles per gallon for the last six or seven months I have removed the air filter for the engine and driven it around for a couple of days the gas mileage did not change still getting 38 miles per gallon if anyone has had this problem I had It corrected let me know. Up until about six months ago I was getting 46 to 48 miles per gallon religiously I am not aggressive driving as I am 82 years old any help someone can give me let me know thank you Fred
 
  #2  
Old 11-17-2018, 08:23 PM
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Greenwood: what was the brand and model of tire you used to have and what is the brand and model of tire you have now? Some tires have significantly more resistance than others.
 
  #3  
Old 11-17-2018, 08:33 PM
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Originally Posted by allegretto View Post
Greenwood: what was the brand and model of tire you used to have and what is the brand and model of tire you have now? Some tires have significantly more resistance than others.
the tires are the same as the factory that came on the car
 
  #4  
Old 11-17-2018, 10:38 PM
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About 6 months ago the weather was warmer. Maybe you have turned the heat on. Most hybrids will run the engine when the heat is turned on.
Can you tell if the grille shutter is working?
Beyond that there may be the typical things that increase fuel consumption:
Dragging brakes. Maybe a caliper is stuck and the pads keep making contact.
Carbon build up on the intake valve. I could not confirm if this engine has direct fuel injection. If yes this is a real possibility at this mileage.
Dirty fuel injectors.
Worn spark plugs.
Hybrid battery getting weaker.
 
  #5  
Old 11-18-2018, 08:37 AM
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A lot of refiners change the gas formulation in anticipation of colder weather and sometimes that will affect mileage.
Just in case you were removing the air filter for the gasoline engine and driving without it, not a good thing to do. Small dust particles can do unbelievable damage to the inside of an engine.
 
  #6  
Old 11-18-2018, 09:51 AM
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Originally Posted by greenwood101 View Post
I have a 2017 Sonata Hybrid Limited with 57,000 miles sense new Iíve only replaced the air cleaner and for new tires since I have done both my gas mileage has dropped to 38-40 Miles per gallon for the last six or seven months I have removed the air filter for the engine and driven it around for a couple of days the gas mileage did not change still getting 38 miles per gallon if anyone has had this problem I had It corrected let me know. Up until about six months ago I was getting 46 to 48 miles per gallon religiously I am not aggressive driving as I am 82 years old any help someone can give me let me know thank you Fred
Cold be winter blend gas ? Change brand of gas for a couple of tanks to see.

 
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