Bladecutter

I have a question for you guys in the know that I haven't seen answered anywhere.

I have noticed that the new Mazda 3 and Mazda 6 that were released with the SKYACTIV-VEHICLE DYNAMICS with G-Vectoring Control have shown a large decrease in fuel mileage.

Examples:

2016 Mazda 6 Grand Touring:
City - 28 mpg
Highway - 40 mpg
Combined - 33 mpg

2017 Mazda 6 Grand Touring:
City - 27 mpg
Highway - 35 mpg
Combined - 31 mpg

2016 Mazda 6 Touring:
City - 26 mpg
Highway - 37 mpg
Combined - 31 mpg

2017 Mazda 6 Touring:
City - 26 mpg
Highway - 35 mpg
Combined - 30 mpg

2016 Mazda 3 Sport Sedan (2.0):
City - 30 mpg
Highway - 41 mpg
Combined - 35 mpg

2017 Mazda 3 Sport Sedan (2.0):
City - 28 mpg
Highway - 37 mpg
Combined - 32 mpg

So, anyone know what's going on?
The cars haven't gained weight, hp, or changed gearing in any way that I can see, but their fantastic fuel mileage has dropped noticeably.

BC.

Mazmart

iTrader: (12)

That's weird. Are these figures all from Mazda or EPA?

Paul

dannobre

iTrader: (3)

I think I remember there were big changes in the way they tested mpg...........so the #'s changed to reflect that

more real world #'s likely

NotAPreppie

Yes:
https://www.fueleconomy.gov/feg/ratings.shtml

zoom44

change in testing methodology. different test = different answers

Bladecutter

Thanks guys.
I just couldn't understand why the numbers were so different between 16 and 17.
It not like it says it anywhere, at all.

BC.

ASH8

no, and yes to different testing method.