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Discussion Starter · #1 ·
Fuelly.com shows the average for the EX35 to be 20mpg

not that great. any EX owners have any data?

Compared to the competition 20mpg is a bit low. I wonder if the QX50 is any different. Probably not.. We are talking real world mileage here.
 

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I wouldn't doubt if the mpg improved slightly for the next model just due to slight improvements in software. Will Infiniti be changing to the 9 speed auto transmission soon? Cause that improves mpg by a bit too.
 

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Not only will ECU tuning help but changing some of the fuel and air components to something better, even internal engine parts. Sometimes from year to year car makers do a lot of changes under the hood that we don't notice until we really dig deep
 

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Fuel economy has become a much bigger factor when buying a car than it used to be. So I think car companies are putting more emphasis on this when they create products. You've got to keep up with the competition at least.

maybe not on the refresh but very soon Infiniti, as well as all the other car companies, will switch to transmissions with more gears, and that will bring fuel economy ratings up across the board.
 

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Fuel economy has become a much bigger factor when buying a car than it used to be. So I think car companies are putting more emphasis on this when they create products. You've got to keep up with the competition at least.

maybe not on the refresh but very soon Infiniti, as well as all the other car companies, will switch to transmissions with more gears, and that will bring fuel economy ratings up across the board.
The fuel economy challenge is getting so bad that car makers will lie about the MPG numbers they get just to say they get more MPG's than all of the competition. It's on reason why I like to wait for real world numbers, nothing better than that.
 

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Considering that any fuel efficiency test will be different from others based on how they set up the test, it makes sense that car manufacturers tend to choose the best data that makes their cars look most efficient. It's like in science class when you would do the experiment twice and choose the easier set of data to work with for your lab report. (At least that is what I did :p)
 

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Fuelly is pretty unreliable for the QX50. There are no QX50s listed but thats to be expected still, for 2008 there are 4 EX35s listed and they're averaging 17.7 mpg over 24,000 miles. 2010 saw 1 car average 25 mpg over 1,238 miles and 2011 had the EX doing 17.9 average from 1 car over 3,176.

Not the widest sample but it should give you a hint or 2.
 

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Discussion Starter · #8 ·
I think changing the transmission is the easiest way for Infiniti to get better mileage out of the car. At least in terms of cost.
 

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I think changing the transmission is the easiest way for Infiniti to get better mileage out of the car. At least in terms of cost.
a DCT is the way to go, up performance and MPG's.
other brands are holding back on DCT, might be time for Infiniti to do it and stand out from the rest.
 

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Discussion Starter · #10 ·
I'm not entirely sure if a DCT is requried for a car like the qX50.

Just a 7 or 8 speed automatic would already improve acceleration and mileage

DCTs are expensive.
 

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That is true but do you want to stick with the old transmissions or have something new to experience like the DCT.
 

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I'm not entirely sure if a DCT is requried for a car like the qX50.

Just a 7 or 8 speed automatic would already improve acceleration and mileage

DCTs are expensive.
for now a 7 or 8 speed auto will do but as the QX50 steps into it's new generation it will need something more up to date, like a DCT transmission. If they don't, they could fall behind the competition. Plus it will help to make a possible IPL QX50 even better.
 

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Other car manufacturers seem to be moving towards 8 speed transmissions. That seems to be top of the line right now. Many companies are using the DCT transmission too. Infiniti tends to stay on top of new technology pretty well though, so whatever they do I think it will be a good job.

Great that the newer transmissions improve fuel economy by quite a bit. That is a step in the right direction :)
 

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get the 9 speed ZF in the QX50. If the Cherokee gets it the QX50 should, luxury demands smoothness! although i'm pretty sure they;re working out the kinks still...
 

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Discussion Starter · #19 ·
The fact that its a 9 speed transmission! I highly doubt something that new will make it to the QX50 before it makes it to any other Infiniti model. And that is likely due to cost.

The QX50 is an entry level car meant to be priced low.
 

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The fact that its a 9 speed transmission! I highly doubt something that new will make it to the QX50 before it makes it to any other Infiniti model. And that is likely due to cost.

The QX50 is an entry level car meant to be priced low.
You never know, it would be suitable in a car like the QX50 from how I see it. It would increase fuel efficiency and performance, something a vehicle in it's segment can use.
 
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