i keep hearing that between normal and sport mode you won't see any significant difference in gas mileage. I am average 24.8 with mostly city driving. Seems like I should be doing better especially after 1500 miles. Not broken in yet?

 

The car in the US is EPA rated for 24 mpg in the city. Assuming highway is marginal, you are close to this. It should improve some, but not tons. It also depends on whether you drive to and from work, in rush hour. When I don't drive to and from work (semi-retired), I get about 8.7 l/100km or about 26 mpg US. The more stop and go I do travelling to and from work during busy times, , the closer that gets to about 22-24 US. It compares well to my wife's Altima, which is a 2.4 180 hp CVT. As for normal and sport, it's mainly how you drive it. The more aggressive you are, which tends to happen in Sport, the worse the gas mileage. If you drive the same - well, expect to get about the same mpg.

 

I get about the same in my 2015 ILX with half highway driving. almost 25mpg with mostly city sounds pretty darn good to me!

 

Do you have an I4 or a V6?

1500 miles isn't totally broken in yet - it's at the point you can drive it hard, but not at the point where your gas mileage is the best it can be. Mine didn't seem to fully loosen up until about 10k km (6k miles).

The drive mode doesn't matter much in terms of gas mileage unless you are in Sport+ mode (I believe VCM won't engage in this mode - not 100% sure on that though). If you're in Econ mode, it'll dial back the A/C to save you some fuel as well, but the drive is so painful with the throttle response and steering. I would only ever use Econ on long highway drives.

Your gas mileage is reasonable for the type of driving you're doing, I think.

 

There are so many factors when it comes to MPG. The MPG you're getting right now with mostly city driving is accurate as to what the EPA rating is.

If you're getting that with the V6 then you're getting great mileage considering you mostly do city. I get roughly 27.2mpg with mixed driving and I would say 40% city and 60% highway

 

I wouldn't expect city mileage to be extraordinary when compared to what it's rated for, but if you do a lot of 50+ mph driving like on highways, freeways, interstates, etc., that's where you can tell the mileage numbers are understated.

When you post what your mileage is, please also post the average mph you're going as well. There are some cities where you can drive around 30-45 mph whereas other cities where your trip will be lucky to average 20 mph, and the mileage will suffer accordingly.

 

I wish I could average 20mph on the highway here.

 

Just got back from driving my daughter's college dorm contents from New Jersey to Indiana. Riding around 70-75 mph, in Normal mode, and with 93 octane gas- the V6 got INSANE highway mpg numbers!! Car has almost 28,000 on it. I guess it's broken in!

 

^^^ ok, now that's just silly for a V6. Something's wrong with your car. lol.

 

Half the engine must be broken :P

 

That is just insane! The best I could ever do in my SH-AWD was 5.6 L/100 km over a 3 hour trip, which is 42 MPG, and even that is very good! You're getting the numbers of an I4! Is yours SH-AWD? I almost forgot the FWD V6 exists in the US haha (it doesn't in Canada).

 

Sounds like VCM killed 3 cylinders to save fuel

 

Yeah, I just have the FWD V6 Tech. I really wasn't thinking about or trying to get good mileage on the trip; I just checked the info when I noticed that I had a lot of range left. As you can see from the pic, on my last segment, I was on track to get about 750 miles on one tank of gas!

 

Do you trail trucks or something because there's something seriously bizarre about that. lol. Do you top off your fuel? Maybe your entire trip was downhil? LOL. In any case, congrats.

 

My RDX is in for a warranty service. I have driven the TLX Elite V6 AWD loaner for two days. I am averaging over 32pmg with mostly highway driving.

I am impressed with the smooth ride, peppy acceleration and quiet interior.

 

I don't want to kill the mood buy in my experience, the on board mileage calculations consistently overestimate the mileage. The best you can do is fill the tank up, reset the trip meter, drive until it's near empty, then fill up again to the approximate same level (ie top off with the same volume you did before) and simply divide the miles/gallons. For example, my 2010 TL says I am averaging 30 MPG but when I do this method, it's closer to 27 MPG. Yes, there are errors associated with gas pumps, odometers, etc.

 

The TLX's is pretty close in my calculations. For example, my actual calculation for the highway mileage worked out to 6.4L/100 km, while the trip computer read 6.3L/100km. It's not too far off. I've found it is only far off on short fill ups (ie: use 1/8 a tank then fill up). It's more accurate when you use more of your tank before filling up.

 

I've stopped keeping track, but over the first 30-40 fill ups, there was only about 1-2 mpg variation from trip computer and hand calc. On highway trips of over 300 miles each way, I was getting 35 mpg at worst and almost 40 mpg at best. It's not that far off. Now, I have no idea how to explain NJToyMan's results.

 

Maybe smooth roads (lower friction), ideal operating temperatures outdoors (engine reaches operating temperature quickly, but it's not TOO hot out), flat ground, lots of cruising in 9th at moderate highway speeds, keeping the torque converter locked as much as possible (ie: not passing or speeding up unless absolutely necessary), coasting in 9th down any hills if they exist (injectors close in this situation), only the driver in the car, no cargo at all, low rolling resistance tires (again less friction), generous use of VCM (ie: not passing or speeding up keeps it in 3 cyl mode as long as possible), A/C off or on Econ mode so it throttles the AC.

I'm not saying he did all those things, but I can see hitting those numbers hypermiling by doing those things.

 

I would not trust what the cars display says. There is too much incentive to over estimate. On my TSX, the displayed MPG was typically around 10% high (so, 2 MPG off would be about right).

 

I've owned my car for a little over 9 months now and I am averaging 27mpgs combined according to my app tracker (aCar). That's pretty awesome considering it's a v6!

The car usually shows anywhere from 27.2 to 27.6mpg, so it overestimates a bit. I usually have it reset Trip A after fill up

 

This is my exact experience after 17 months with my 2015 TLX AWD Advance!! 25-26 mpg mixed. Really impressed with a 400 mile trip mostly running 82 mph (80 mph speed limit) most of the way and getting 37 mpg!!!

 

Just to add a few more facts about my recent trip:
1. The trip computer was within 0.1mpg of me manually calculating results from my fuel receipts
2. My data is essentially over a "round trip" (point A to B to A again) on the same highways. So, whatever hills I went down, I had to climb again on the way back. And there were lots of mountain climbs in Pennsylvania!
3. On the trip out, my car couldn't have been more filled with stuff... the trunk and back seat were packed with clothing, fridge, microwave and all essentials for a college dorm. Hundreds and hundreds of pounds- besides me and my passenger.
4. My trip was not exclusively highway driving. There were 2 days in the middle of city driving mixed in, as I made several trips from hotel to dorm room during set-up process.
5. I was in no way trying to get super mileage from my V6- I drove with the flow of traffic; my A/C was on auto; I passed others as needed.
6. Just for fun, here is another pic from the trip. When I snapped it, my car is virtually empty; only me in it- and not many miles driven since the recent fill-up. But it's still fun to see these results displayed...

 

They obviously sold you a Prius.

 

My brand new TLX SH-AWD got about 32 driving from Mad-town to Lambeau and back, with a side trip this past weekend. The MID mileage read 5% or so high/optimistically.

 

Took the 435 to the beach & back to check the house for storm damage. 72MPH @ 32.5MPG Raleigh to the Outer Banks & back 400 miles. Some 90MPH cruise time to hold the average after getting out of slow traffic in Raleigh & the beach community. Not bad for 342HP. Will never win the MPG contest but expect at current gas prices the penalty is marginal..

 

Kevin Mclean show the picture of the dash.. This never gets old.

 

Hope the house is OK. We spent a week in Avon in May just before Bonnie got there, and really enjoyed it.

 

Avon by the Sea NJ or Avon NC? Parents used to live in the NJ version.

Thanks, all was well. The hype on the news had me worried that my Gazebo & some of the boardwalk was gone. Reality was the high water mark never even got to the first line of dunes. Good thing was the rest of the family came down & we had a mini vacation. One of my grandsons & son in law are in the shot - 12 hours after the storm went through. The save the turtles people were all happy, We had a turtle egg nest next to the footpaths outlet to the beach which the caged off. The babies hatched last night & the turtle people got them safely to the sea.





W.B.MASON - Did not take any pictures. Have not bothered for a long while, still have the early ones that show very similar results. Mileage has slightly improved as the car has added miles to it.

 

Avon NC, a bit North of town. Octagonal house, really cute.

 

Just completed a road trip from Winnipeg to Fargo. With the assistance of my beautiful wife, I recorded a total of 12 fuel economy ratings ratings each way of the trip, so a total of 24 ratings recorded over a distance of 462 km. I used equal distances for each of Eco, Normal, and Sport Modes, for 4 different speeds (100, 110, 115, and 120 KPH) Conditions were ideal, around an average of 16 - 20 degrees C, with similar southerly breezes dampening ratings on the way down and assisting on the way back. I only recorded ratings once the car was up to speed, in stretches where I could maintain speed without breaking. To summarize - as scientifically accurate and geeky as possible! My results, using weighted average calculations for distances driven per mode and speed:

100 kph - 5.8 L/100 K (41 mpg US at 62 mph)
110 kph - 6.0 L/100 K (39 mpg US at 68 mpg)
115 kph - 6.1 L/100 K (39 mpg US at 71 mpg)
120 kph - 6.3 L/100 K (37 mpg US at 75 mph)

Eco Mode weighted average - 6.1 kph
Normal Mode weighted average - 6.1 kph
Sport weighted average 6.0 kph

Overall Weighted Average Fuel Economy - 6.1 at 114 kph (39 mpg US at 71 mpg)

Conclusions

Like the 3.5, the 2.4 is an excellent highway cruiser. When I took similar ratings in my 2015 3.5 SH-AWD last summer , the results were also excellent, albeit about 10 % less efficient. I am not surprised that the results are essentially the same for all three modes, particularly as there was minimal load on the climate control system. It's great that the car consistently bests it's official Transport Canada highway rating of 6.6 l/100 km, even when cruising at 120 kph! Add the incredibly quiet ride (including my undercoating that also dampens road noise) and the sound system, and it's a pure joy to drive on the highway. BTW, the passing acceleration is excellent for a 4 cylinder, and certainly doesn't make me regret switching from the 3.5.

My decidedly less scientific fuel economy tests for city driving has also convinced me that Sport Mode will be my normal setting. The fuel economy is similar and I don't experience the occasional 1-2 x per week of clunky 2-1 downshifting when braking. The car seems to be set up for Sport, so Sport it will be

 

I just filled up today and I use an App on my phone to track my mileage, not the car's computer. This tank was just slightly over 20 mpg on a 2wd V6. I think that was because my commute is short and I drive the car angry more and more stepping hard on the gas out of frustration with the transmission. A more usual tank is around 23 mpg. On just highway driving I can easily get mid 30's or higher.

I think the biggest factor in mileage is driving style. But driving like a hyper-miler is no fun so I just pay the gas pump and don't worry about it.

 

That's the case for any car, even a Prius can get shitty mileage by Prius standards.