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My economy is back down to 39mpg every tankful now we're out of the summer too. Averaged 42mpg for just about every tankful from June to September

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I've owned my NX300h Luxury for almost 8 months having previously owned an IS300h, and have driven around 4500 miles in it.  I used to average just over 50mpg in the IS with mixed driving, slightly less at lower temperatures.    I found it easy to match the manufacturers quoted MPG figures, and often exceeded 60mpg on a steady run on a warm summers day.  The design of the NX however is such that it's difficult to obtain good mpg figures especially with motorway driving.  Over the weekend I drove between Cardiff and Tenby and struggled to return 37mpg, and I was not driving hard.  During the summer months with more local driving on mixed roads I achieved 42mpg at best.  I find the noise of the engine racing during inclines and acceleration intrusive and a real irritation, which doesn't make for a relaxing drive.  Driving around country roads at 50mph is enjoyable and quiet, and around town is okay, however I would never buy an NX primarily for motorway driving.

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Did a 150 mile drive to South Wales last weekend myself. M5 and M4. 80mph most of the time. Got 33.9 mpg. Pathetic really. I used to get 31mpg from a 5 litre V8 Jaguar XF at 75-80 on a long motorway cruise. The one thing that might force me out of my NX is if my Monday to Friday journeys become lots of motorway driving instead of local commutes. I think the NX300h is pants on the motorway to be honest and most of the time I drive in sport mode so that I have a reasonable level of performance available when needing to accelerate into the outside lane. I agree that the noise of the engine is intrusive in this situation and it's out of all proportion to the amount of go. There is very little part throttle performance to be honest and it's the one thing that often makes me think about swapping it for something with a bit more go and a much more linear relationship between throttle, performance and engine noise. Then I pull off the motorway and glide along between 40 & 50 and it's sublime.

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On 15/12/2014 at 11:20 PM, rayaans said:

That's actually shocking. May as well have put the 450h engine inside - Im easily getting 30mpg in my RX with a lead foot and no hybrid driving technique doolalley whatsoever. I just drive it like a normal car! and I live in Yorkshire - probably the most hills in the UK :P

Had my Blue F sport NX 2 and a bit years now....lokking round for what's next  (I'm a company car driver doing just 20k per annum). Like the Jag F-Pace but the NX for me best value for money - so am thinking it's going to be another one mid 2018 for another Yorkshirenan !

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35 minutes ago, Dealkent said:

The Jag E Pace is coming , that maybe more interesting?.

Hope it does better than the present f pace. There appears to be a variety of problems with them similar to Land Rover. Read the issues on the forums Etc. Etc. Nice looking vehicle but.........

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Done another motorway trip this weekend, about 80 miles up the M42, M6T and M6. Never exceeded 80, plenty of time at about 75, 4 adults in the car. 34mpg. Only 35.9 back down today. Both figures include the bits before and after the motorways. My weekly journeys are about to include more motorway mileage so we'll have to see how it goes. There is so little part throttle response from the engine and drivetrain and it does frustrate me on motorways. If only that spongey throttle response and lack of get up and go provided mega mpg returns...

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