This shocked me. I drive to get good mileage, with lots of coasting and little idling. My son drives like gas is free. He drives in stop and go traffic every day, and he uses drive-up tellers, etc. My 2015 Fit got considerably better mileage than his identical 2015. Since he got a 2019 Fit, he has just surpassed me by .1 MPG. Imagine the mileage I'd be getting with his car. Whatever Honda did to improve mileage, it certainly worked.

 

any other variables?

IE:

-does he have higher tire pressure?
-is his alignment better?
-does his car carry less weight in it?
-is he using any special fuel / a better brand fuel? (I was always a "use whatever brand gas" kinda guy, but recently started trying out name brand stuff ... SHELL ... and the butt dyno tells me, its better! no mpg change tho, just thought I'd share useless info)
-did he change his commute / driving style?
-did you change anything that has lowered your #s compared to prev months/years?

 

Trade cars and see what happens...

 

Nothing different from when he had the 2015. Empty car, working in the same place, doing the same driving. My mileage has been a little over 43 since I've had it - 58k miles.

 

No Way! He's rough on cars, and he leaves it parking lots all day. Before someone ran into his 2015 and totaled it, he had about 83k on it, while I had about 48k on mine

 

I do not believe in the results from unscientific observations. Maybe you should drive like gasoline is free too!

 

seriously, lend your car to your son for a day. I wonder if his right foot can somehow produce better mpg #s

 

Sorry, but it really is the car making the difference. When we were both driving 2015 Fits, he averaged 39.8 for about 83k miles, while I averaged 43.7. With his 2019, his MPG is equal to mine. On one trip home from work, someone ran into him while he was stopped, and his car was totaled. On another trip, he blew the two front tires when he hit a large pothole at night in the rain. A couple of weeks ago, he blew another tire in a pothole on a rainy night. And I should let him drive my car for a day? I think not.

 

I cringe at the thought of how expensive it is, to insure your son

 

He's never caused an accident, so there's no extra fee there. His insurance is higher than mine because his car is newer, and he drives to work every day. Still, MetLife takes good care of us.

 

When was the last time your car was at the dealer? Normally they check for software updates and install the latest if available. If your car has never been or it's been a couple years then it's running on old software. It's probably been updated by engineering more than a couple times since 2015

 

I’ve been driving my 2019 and with 3300 miles I’ve been averaging 41.1 mpg with an indicated 44.5 mpg on the display. I drive very conservatively just to get a baseline for the car. Oil life is only at 70% so I’ll hit the 5K mark for 1st oil change well before the oil life goes to 15%

 

There haven't been any software updates in several years. The last one I got was in 2015 for the CVT recall. I was in at 60k in 2018 and no software update was offered.

Are these MPG ratings from the display or hand calculated?

I would think the new models would be heavier as they received more sound deadening and thicker windshield glass, so that should be a gas penalty.

 

I'm not complaining about averaging 43 MPG. Unless I get a notice from Honda about a free service, I'm staying away from the dealer. My local dealer is a money vacuum.

 

The MPG figures are calculated, as you can see below from Fuelly.

 

Funny you should mention that. My car is loaded with Dynamat, and it made quite a difference in the noise level. I think I added three boxes at 15 lb per box.

 

I drove 40 - 45 MPH for 17 miles yesterday behind a slow truck, and I averaged 60.0 MPH by the time the truck turned off. Not bad. Of course, that's according to the dash display, but it's the highest reading I've averaged for a distance. I covered the remaining 13 miles and averaged 55.0 MPG for the whole trip. Coming home on the Interstate at 65 - 70 MPH, I averaged 42 MPG. I made the right decision buying this car. : )

 

45mph is about ideal conditions. Drafting a truck will remove most wind resistance. Nice milestone to hit.

 

nice!

I did something similar, where I followed a dump truck from San Diego to Irvine (76.5 miles) and went mostly 55 mph. Honda MPG gauge shows 52.4 mpg, a personal best

 

And I wasn't even drafting.