We are having the exact same experience. “Normal” driving: 38-39 mpg. “Old Lady” driving: maybe 40-40.5. We’re just driving normal and happy with getting close to the EPA rating. On another thread, I mentioned that we did have a hard time getting up to 38-39 initially in the first 2000 miles. It seemed to plateau at 34. But when we manually calculated it, it was in the upper 30s. After resetting the trip/mpg, it settled in the upper 30s. For some reason, the Lexus calculation included some very low mpg readings into the initial running average. We’re now at 5000 miles and it is very consistent at 38-39.

 

That is my experience but I don’t even get that good of mileage. On either of our hybrids to get 39 we would have to drive very very carefully. Now reading someone saying they get over 50 miles per gallon, I don’t know what to think about that. And someone said something about letting the vehicle coast for 2 miles, where in the world could you do that, I’m just frustrated, thanks everybody.

 

To add another data point, I took delivery of my 350h last Friday (July 22), and just filled up my tank for the first time yesterday. For my very first tank of gas, I got 36.9 mpg (US not Imperial), and most of those were highway miles, so very close to the EPA 37 mpg highway figure. If mileage improves a bit as the car breaks in, I think I'm going to be quite happy, even if I don't break 40 (which I "shouldn't" based on the EPA numbers).

I will add that I am making a lot of use of the adaptive cruise control, which I expect is giving me about the best possible efficiency.

 

Congrats on your car, I too will be using the adaptive cruise control, but the real hypermile bigots pooh pooh cruise control saying they can do much better and they do ! ( Prius threads have all the details)

YMMV,
MidCow3.

 

Yes that’s what they say, so I drove in the city for about 30 minutes not using cruise control of any kind the entire time driving so slowly and carefully that everyone around me didn’t like it, and I managed to get right around 41. This involved coasting a lot more than I normally would etc.

 

A few tips.

 

i'm 1800km in (so like just under 1200 miles) and average 6L/100km of probably 50/50 split between hwy/city which is 39.2 MPG.. this is me drivving normally so i can easily get better (or worse) if i tried either for better or worse mpg.

you'll get worse mpg if you use adaptive cruise a lot since it accelerates pretty quickly to get back upto set speed after slowdown and it brakes later than i normally would and very little coasting

 

Good discussion about efficency and MPG's.

The level of inflation in your tires can also have a significant effect on your MPG.

What tire pressure are you and the wife running in your vehicles?

 

In theory, whether you have the base 18" wheels or the premium 20" wheels may also have an effect on fuel economy, as might the tires, though I suspect anyone with a '22 NX 350h is still on the factory installed models unless they're real car nuts.

 

I have a 450+ and I don't know how to get 37 MPGe I keep getting 35.

 

To get 47MGEe you had to get the Redline color , Redline has a lower CD and the lower air resistance gets the extra 2 MPGe. All colors except for Redline only get 35 MPGe.

YMMV,
MiDCow3

 

Mine the 350H is 20 inch.

 

33-36 depending on whether they are hot or cold.

 

but you don’t even have a 450+ redline yours is a 350

 

I paddle shift down one or two clicks when coming to a red light or slow traffic (NX350h). I assume this charges the battery. Am I right or should I be using the brakes for regeneration? I'm getting great mpg so far (43,47,42).