[Chandra Naidu Boyapati]

What is your MPG so far. I have 400 miles on my QX50 and is averaging 21 MPG. This is lot less than what Infinity claims 24/30. So far all miles are city driven.
Is there a break-in period for this SUV? Of course I am using premium fuel with 93 Octane.

 

[wicked-qx]

This might be the biggest scam Infiniti has ever pulled. I barely get around 18mpg on city driving and maybe 20mpg highway. I even tried driving on eco for a few days but nothing close to what they claim. smh

 

[stepkau]

I've got around 1300 miles on mine.. Mostly suburb driving but one good 200+ mile highway road trip.. Net MPG hasn't been higher than 21.x MPG. I can see this number plummeting if I get into the gas and start driving it for fun.

 

[tj2433]

SO I've only had my QX50 Essential for about a week. This is my third Infiniti, having previously had 2 M37x's. While I am impressed in many ways, so far I'm very unimpressed with the gas mileage. I had expected something around 25 mpg in combined driving as they promote, but I'm seeing around 20. I'm surprised others are not commenting a lot on this, or is my experience, and that of you other 3 commenters so far, really unique? Hard to believe.

 

[MI2006]

I have never been able to get better than 20 mpg in mixed driving which is a far cry from what the numbers that Infiniti advertised.

 

[Twam911]

Have had ours 6 days....about 300 miles. First 190 miles all highway got 28.7mpg......in town on rest 23.2mpg thats better than our Q50 with gets worse fuel mileage than my Ram 1500 5.7 Hemi!

 

[Grisho69]

I drive almost 100% highway. Shows 27.4 in the car, but once you do the math when you fill the tank is about 24.5. Very relaxed driving but I live in Canada so the cold weather doesn't help.

 

[tj2433]

Updating my earlier post now that I've had 500 more miles on the car.....I see I can easily get low-mid 20's mpg on local driving and 30 mpg on the highway if I'm conservative with my driving. However, go up the slightest hill, or accelerate or drive at higher speeds (like 70 mph or more), and the numbers certainly take a hit. In general, real world I'm seeing about 21-22 mpg locally and 27-28 on the highway. Not what they promised, but not bad imo, so I'm content with it.

 

[roncumming]

2019 qx50 gas mileage

After reading all the responses, remember that Canadian (imperial) gallons are 20% larger than American gallons. I live in Canada and get 9 litres per 100 kilometers, or 31 mpg per imperial gallon (or approx. 25mpg per American gallon) Mostly highway driving in standard mode. I don't have an explanation for mileage in the 21mpg range, unless the sport mode is being used a fair amount.

Hope this helps.

 

[Twam911]

QX50 gas mileage

I just spoke to my salesman yesterday about this! He said you have to run premium gas, have to drive at posted speed limit, told me to turn off the engine brake and it will get better.
I was also informed the the ECO mode should be used under 50mph. On the highway the ECO mode will use more gas since it shuts off half the cylinders and the vehicle will struggle to keep speed. Run in standard mode. This DID NOT come from anyone at Infiniti. My old Q50 would shut the ECO mode if you used the cruise control.

 

[tj2433]

Ummm, Twam911....well, where to start. Of course you have to use premium gas as recommended for the vehicle, driving the speed limit is irrelevant to mileage although driving at slow speeds (local or highway speed) gets better mileage than driving at higher speeds, and well, I'm not sure what an "engine brake" is if not the brake pedal, but I imaging it is a good idea to not have it on when driving.












And yes, Eco mode should give better mileage at any speed (above or below 50, I think) as it is intended to do, but at a sacrifice in performance. In any case, as I reported above, I get around 21 locally and high twenties or more on the highways IF I drive conservatively and am on flat roads. Anything else hits my mileage numbers....fast acceleration, going up hills, using sport mode.

 

[exmeaguy]

I bought the QX50 about a month ago and took my first highway trip this past weekend and I am greatly disappointed in the mpg. I drove about 230 miles of which 90% of the trip was highway and I only got 23mpg with an average speed of 75mph. I had the tranny is standard mode the whole time. I don't even want to talk about the worthless ECO mode.



Guys, do we have an issue here? Are we being sold smoke and mirrors?

 

[Grisho69]

It is double smoke as you can’t get the promised mpg on your vehicle display and you get even worst when you do actual math at the pump. I think it’s how Infiniti works. Same thing on my QX60. I had Audi and I was getting better mpg than estimated.

 

[bigslickak]

I get around 20 mpg per my tracking on Fuelly, about 60/40 city/hwy. So far off of the EPA estimates - considerably more off than any other vehicle I've owned. What's worse is the tiny 16 gallon gas tank, which makes it feel like I'm filling up constantly. I don't drive many miles, about 1k/month.

Consumer Reports had an article a couple months back about how the 2019 QX50 was a severe outlier in the EPA vs. real world discrepancy.

From the article:
"That’s why it’s so striking to have a 4-mpg difference between CR’s results and Infiniti’s stated mileage values, Fisher says, adding that CR hasn’t seen as large a discrepancy in several years."

I feel duped. Nissan/Infiniti needs to be sued and owners/lessees compensated for the difference. Hyundai had to do this in the past.

 

[stepkau]

I'm still clocking in at 21.x MPG according to the vehicle displays. Doesn't matter if I'm driving in the suburbs or doing 3+ hour road trips. Love the car, this is the only knock I have on it so far.

 

[exmeaguy]

I took a trip yesterday and drove 120 miles to the destination all highway in ECO mode and averaged around 78 mph and got 26.1 mpg. On the trip home I kept it in standard mode and about the same mph and got 25.6mpg.

 

[BriOSU]

I am getting over 27mpg mixed since I got mine in July.

 

[tj2433]

Better Than You Think!

Like most of you, I have complained about the mpg of my new 2019 QX50 Essential Sensory being so far off from the promiseof the EPA’s 24/30, combined 26 mpg ratings. The Consumer Report study some of you cite says those numbers are inflated by 15%, using their track simulations test process. But what should I expect to get in the real world? Some facts:

What is the EPA test? Their web site says:

“The "city" program is designed to replicate an urban rush-hour driving experience in which the vehicle is started with the engine cold and is driven in stop-and-go traffic with frequent idling. The car or truck is driven for 11 miles and makes 23 stops over the course of 31 minutes, with an average speed of 20 mph and a top speed of 56mph. The "highway" program, on the other hand, is created to emulate rural and interstate freeway driving with a warmed-up engine, making no stops(both of which ensure maximum fuel economy). The vehicle is driven for 10 milesover a period of 12.5 minutes with an average speed of 48 mph and a top speedof 60 mph. Both fuel economy tests are performed with the vehicle's airconditioning and other accessories turned off.” It further says the combined rating is the weighted average of 55% cityand 45% highway.

I must say that my “city” driving is not that slow/stop and go, so the typical 22 mpg I get is maybe not so comparable (although it is far far better than the CR report’s 15 mpg measurement!!) A better test for me is my recent extended highway trip. I went 250 miles with cruise control on 65 mph in one direction, and then returned doing 75 mph in the other. The trip included going over a 3000 ft mountain and foothills, so not a flat ride for about a third of the trip. And the air conditioner was on. On the first leg I got 29.8 mpg, and on the return I got 26.1, as measure by the car. When I did the actual calculation, it was actually 7-9% lower (another disappointment, but that’s another story) at 28mpg (9% below the predicted 30) and 25 (17% below 30).

BUT…

I then researched the effect of speed on mpg. I found several studies saying that versus driving at 50 mph (the EPA’s test speed), driving at 60 mph decreases mpg by 3-7%, 65 decreases it by 8-15%, 70 by 17-24%, 75 by 23-34%, and 80 by 28-42%. A lot. My experience was at the low end of or below those ranges.

Then I compared the QX50 EPA ratings to those of 6 competitors: Audi Q5, Acura RDX, Volvo XC60, Mercedes GLC300, Lexus NX300 and BMW X3. All had ratings a good 8-12% worse than the QX50, and presumably they too actually perform a least a bit below their ratings (CR says so, too). And of course they should be similarly impacted by driving speed. But my actually performance was about what their ratings are even though I was driving a lot faster!

My conclusion is that the QX50 indeed delivering on the EPA mpg ratings promise when you include the impact of speed, and it is doing at least a bit better than its competition. Now if I could just get myself to drive as slowly as those EPA tests!! Meanwhile, I will quit complaining now.

 

[Twam911]

Like most of you, I have complained about the mpg of my new 2019 QX50 Essential Sensory being so far off from the promiseof the EPA’s 24/30, combined 26 mpg ratings. The Consumer Report study some of you cite says those numbers are inflated by 15%, using their track simulations test process. But what should I expect to get in the real world? Some facts:

What is the EPA test? Their web site says:

“The "city" program is designed to replicate an urban rush-hour driving experience in which the vehicle is started with the engine cold and is driven in stop-and-go traffic with frequent idling. The car or truck is driven for 11 miles and makes 23 stops over the course of 31 minutes, with an average speed of 20 mph and a top speed of 56mph. The "highway" program, on the other hand, is created to emulate rural and interstate freeway driving with a warmed-up engine, making no stops(both of which ensure maximum fuel economy). The vehicle is driven for 10 milesover a period of 12.5 minutes with an average speed of 48 mph and a top speedof 60 mph. Both fuel economy tests are performed with the vehicle's airconditioning and other accessories turned off.” It further says the combined rating is the weighted average of 55% cityand 45% highway.

I must say that my “city” driving is not that slow/stop and go, so the typical 22 mpg I get is maybe not so comparable (although it is far far better than the CR report’s 15 mpg measurement!!) A better test for me is my recent extended highway trip. I went 250 miles with cruise control on 65 mph in one direction, and then returned doing 75 mph in the other. The trip included going over a 3000 ft mountain and foothills, so not a flat ride for about a third of the trip. And the air conditioner was on. On the first leg I got 29.8 mpg, and on the return I got 26.1, as measure by the car. When I did the actual calculation, it was actually 7-9% lower (another disappointment, but that’s another story) at 28mpg (9% below the predicted 30) and 25 (17% below 30).

BUT…

I then researched the effect of speed on mpg. I found several studies saying that versus driving at 50 mph (the EPA’s test speed), driving at 60 mph decreases mpg by 3-7%, 65 decreases it by 8-15%, 70 by 17-24%, 75 by 23-34%, and 80 by 28-42%. A lot. My experience was at the low end of or below those ranges.

Then I compared the QX50 EPA ratings to those of 6 competitors: Audi Q5, Acura RDX, Volvo XC60, Mercedes GLC300, Lexus NX300 and BMW X3. All had ratings a good 8-12% worse than the QX50, and presumably they too actually perform a least a bit below their ratings (CR says so, too). And of course they should be similarly impacted by driving speed. But my actually performance was about what their ratings are even though I was driving a lot faster!

My conclusion is that the QX50 indeed delivering on the EPA mpg ratings promise when you include the impact of speed, and it is doing at least a bit better than its competition. Now if I could just get myself to drive as slowly as those EPA tests!! Meanwhile, I will quit complaining now.

You work for Nissan/Infiniti right? JK....

 

[stepkau]

no matter what I do, 21.x MPG mixed driving.. My expectations when seeing 24/30 is that mixed driving would fall somewhere in the lower end of that range, not well below the city driving number.