Got my new 2017 accord hybrid touring a month ago, the 1st 2 tank of gas get me about 40 mpg, not great but ok. Starts from my last trip from LA to SF last week, I stared getting real poor gas mileage, all highway drive from LA to SF and back I got only about 37 mpg. Now after about 2000 miles, I am only getting about 33 mpg no matter on highway or local. What is wrong with the car? Anyone had similar experience, thanks!

 

Need a little more info. How fast are you driving, and has that speed increased as you have become more used to the car? With Honda's hybrid design (i.e., no gears, just fixed ratio for the gas engine) as you drive above about 60-65 MPH the MPG will fall off FAST. If you happen to be one of those running 75-80, your observed mileage may be falling well down into the 30's.
Hybrid MPG's are poorer on the highway than around town by design, so for your use of mostly highway the hybrid may simply not be the best choice.
Aside from that, my hybrid MPG didn't start to really get better until I had about 13k-14k miles on the car and the gas engine got nicely broken-in, but my mostly around town driving would have slowed that break-in process.

 

Thanks for the reply. Driving habit is the same as I would drive any other car, the thing that does not make sense is with the same driving manner on the same road, the gas mileage fell off from 40s+ to low 30s within 2 week opr so, what is wrong with this accord hybrid? Do I need bring it back for the dealer to check?

 

More A/C?

 

No same A/C same settings especially for comparison reasons.

 

 

Nineteen inch wheels will only harm fuel economy compared to smaller wheels.

 

Do you think 19" and 40 mpg is good? If I put 17" back on should I get 47 mpg?

 

The designers/engineers have spent many hours optimizing the vehicle for fuel economy. Even different tires, albeit the same size, can have a negative effect. Virtually anything one does in modifications will be a detriment. I have noticed even the slightest headwind can have a major effect on MPG. Our "Standard Loop" is 60 miles for shopping at a nearby city at 72-3 (posted 70 MPH), and we are averaging right at 45 MPG in warm weather, about 5 MPG less in the winter (when the heater requires the engine to be running more of the time)

 

At 62MPG on a long haul I have gotten 54MPG. But have gotten 40 doing 75mph. Using regular gas. Ive heard people get in closer to 60 if you really milk the gas pedal.