2019 qx50 mpg - Infiniti QX50 Forum
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post #1 of 18 Old 10-25-2018, 10:36 PM Thread Starter
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2019 qx50 mpg

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.
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post #2 of 18 Old 01-24-2019, 03:27 PM
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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
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post #3 of 18 Old 01-25-2019, 11:12 PM
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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.
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post #4 of 18 Old 02-22-2019, 08:01 PM
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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.
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post #5 of 18 Old 02-27-2019, 06:45 PM
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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.
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post #6 of 18 Old 02-28-2019, 10:37 PM
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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!
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post #7 of 18 Old 03-02-2019, 12:30 AM
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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.
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post #8 of 18 Old 03-06-2019, 07:37 PM
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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.
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post #9 of 18 Old 03-14-2019, 11:10 AM
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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.
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post #10 of 18 Old 03-14-2019, 01:36 PM
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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.
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