RX - 4th Gen (2016-2022) Discussion topics related to the 2016 and up RX350 and RX450h models

4RX Mileage Thread

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Old 12-02-15, 12:46 PM
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ccb777
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Default 4RX Mileage Thread

Was checking to see what you really get on the highway in gas mileage. It states 28 mpg. I have a BMW that states 28 mpg but in highway driving I normally get about 30 mpg w/o ac running. This is by measuring mpg after filling tank. The computer read out would sometimes state 32 mpg but when measured on fill up it was sometimes 2 mpg off. Mercedes s class I had stated 26 mpg highway and I got 28 to 30 mpg all the time.
Wondering if RX exceeds mpg rating as well?
Old 12-03-15, 03:57 AM
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RXOwner
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Driving both ways to St. Augustine, I got 31.5 mpg at 65 mph. Vehicle only has about 700 miles on it. I could not be more happy. Around town, I am averaging 24-25 mpg.
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Old 12-05-15, 12:05 PM
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noeldavid
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First full tank and I got 15.6 mpg on Normal mode around the city with lots of stopping 25-30 average speed. I reset the miles and switched to ECO mode to see how much I get in a full tank of Regular 7/11 fuel on the 2016 RX 350.
Old 12-06-15, 09:13 AM
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madmax2k1
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Originally Posted by noeldavid
First full tank and I got 15.6 mpg on Normal mode around the city with lots of stopping 25-30 average speed. I reset the miles and switched to ECO mode to see how much I get in a full tank of Regular 7/11 fuel on the 2016 RX 350.
That's more realistic, I don't know how other people are averaging 23-25 mpg in the city?
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Old 12-06-15, 06:24 PM
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Peterun
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My 450h (AWD) consistently is getting between 30.3 and 31.5 mpg on urban streets. Freeway driving stays at 30 mpg if I hang at 60 mph. Drops down to 27.5 - 28.5 at speeds of 70 and higher. Strictly premium fuel.
Old 01-02-16, 02:23 PM
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noeldavid
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Second full tank and I got 16.2 mpg on ECO mode around the city with lots of stopping 20-45 average speed.

On Normal mode I got 15.6 mpg.

Is this what would be expected? I never accelerate rapidly and always release gas pedal way before I reach a red light.

I am using Regular fuel from 7/11.

Just switched to Race Trac Regular and will report mpg on ECO. Sport should get me 13-14???
Old 01-02-16, 06:43 PM
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cmartinez
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Just took a short trip from Houston to San Antonio (about 180 miles each way) and averaged around 23mpg. I wasn't driving it hard, but I wasn't babying it either. I expect that this figure will improve a bit once everything is properly broken in. In my '14 Tacoma my mileage got much better after a few thousand miles. It's still nowhere near as good as the brand new RX in that department, but it is doing ok for what it is (18mpg average).
Old 01-03-16, 06:36 AM
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cpreecs
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I use an Automatic (automatic.com) with my 2016 RX to track mpg. I haven't taken any really long trips yet but for a couple 50 mile highway trips I was able to get a little over 31 mpg. This was driving the speed limit and consistently using the radar assisted cruise control. For short trips around town, I get 11-16 mpg.
Old 01-03-16, 06:43 AM
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rayaans
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Originally Posted by noeldavid
Second full tank and I got 16.2 mpg on ECO mode around the city with lots of stopping 20-45 average speed.

On Normal mode I got 15.6 mpg.

Is this what would be expected? I never accelerate rapidly and always release gas pedal way before I reach a red light.

I am using Regular fuel from 7/11.

Just switched to Race Trac Regular and will report mpg on ECO. Sport should get me 13-14???
Sounds on point. Short trips kill MPG
Old 01-03-16, 07:17 AM
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cmartinez
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Short trip from Houston to San Antonio this past week gave me about 23 mpg average.
Old 01-03-16, 11:18 PM
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On a recent 180 mile roundtrip to a local ski resort, i did 23MPG with a Thule Cargo box on the roof. Note, a lot of the trip up there was uphill on the highways, and downhill on the way home.... I drove mostly between 70-80MPH


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Old 01-18-16, 05:01 AM
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paguy
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Default Fuel Mileage

Recent trip checked fuel actual mileage, miles divided by fuel used, not the onboard 'computer'.
Most of the trip, highway 70-76 MPH, Columbia SC to West Palm Beach Fla. , 26.3 MPG.
I'm a happy person!

Vehicle started trip with 2,000 miles on it so not what I would consider 'broken in'. Big improvement
over my 2009.
Old 01-18-16, 05:12 AM
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That is good for sure. Around town I am getting around 21-22 mpg driving it easy.

At highway speed, 60 or under I have seen 28-29mpg. Your 26 at 70 or more is still darn good.
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Old 01-18-16, 08:34 AM
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crankshaft
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Originally Posted by noeldavid
Second full tank and I got 16.2 mpg on ECO mode around the city with lots of stopping 20-45 average speed.

On Normal mode I got 15.6 mpg.

Is this what would be expected? I never accelerate rapidly and always release gas pedal way before I reach a red light.

I am using Regular fuel from 7/11.

Just switched to Race Trac Regular and will report mpg on ECO. Sport should get me 13-14???

Your using regular fuel? What does your owners manual recommend? The NX calls for premium.
Old 01-18-16, 09:32 AM
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dchar
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Originally Posted by crankshaft
Your using regular fuel? What does your owners manual recommend? The NX calls for premium.
The RX350 only requires regular and the RX450h requires premium.
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