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Acura RDX Real World MPG

steverstever Viva Las CrucesPosts: 41,009
Please report on your gas mileage in here. Include details like your city/highway mix, driving style, or anything else you think may help others compare their mpg to yours. Thanks!

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Comments

  • smaslinsmaslin Posts: 2
    Only gone through two tanks of gas but so far I'm getting 19.6 mpg. On both tanks I compared the mpg from the computer to that computed at the pump; both where very close. Best mileage to date was 21.5 mpg during an 80 mile highway loop from MD to VA at 70 mph.

    Scott
    2007 RDX with Technology Package
    Nighthawk Black Pearl/Ebony Leather
  • scottm123scottm123 Posts: 1,501
    That's odd.

    I have an '06 MDX Touring with Nav & RES
    I stopped by and gave the RDX a look.

    Being a smaller engine and a lighter vehicle, I would expect the MPG to be slightly better than the MDX.

    My drive from MA to IL and back gave me a wonderfull 23 MPG with an average 75 on the highway.

    How you liking the RDX?
    Happy with it so far?

    I find the seats MUCH more comfortable than those in the MDX.
  • I have driven 800 miles on my RDX and am averaging 12.8 MPG.

    No technology package, black ext / black int.

    I am extremely disappointed in the gas mileage. I took it to the dealership and they said that there is nothing wrong with the car, and the the gas mileage will improve after 1500 miles, but I really doubt that. The gas mileage isn't going to move up very significantly after another 700 miles.

    Obviously there is something wrong with the design of the automobile, i.e. its weight. I drive slightly aggressively, but did so with my Honda V6 EX and got 24.5MPG average. Several other people on this forum have the same problem with their RDXs, i.e. the gas mileage is quite bad.

    I would advise before buying this car to take the car home and drive it for 100-200 miles and see what kind of mileage you get. My wife and I are extremely disappointed in an otherwise great car and the ADDITIONAL gas costs are going to be somewhere around $2400 (also the car only takes premium gas).

    Acura brought this design out too soon. There is something wrong which is causing this very low gas mileage.

    I hope that this helps other people who are considering this car. I'm really sorry that this information was not available to me before purchase, but hopefully it will help someone else.
  • jrynnjrynn Posts: 162
    12.8 sounds low. Perhaps something is going on with your particular car.

    On the other hand, I wouldn't dismiss the dealer out of hand when he says mileage typically improves in Acuras.

    For the first 2200 miles, my TSX averaged under 25mpg with a best tank of 29.78. Over the next 2800 miles, it averaged OVER 30 mpg in the same kind of highway-heavy driving. And I didn't see tanks over 35mpg until 7,000 and 12,000 miles. In the meantime, there have been more tanks over 33mpg than are worth listing here. (And all that from a car that started out, as I said, averaging under 25mpg off the dealer's lot.)

    There really was HUGE IMPROVEMENT after the first @2000 miles. Give it some time.
  • scottm123scottm123 Posts: 1,501
    "I took it to the dealership and they said that there is nothing wrong with the car, and the the gas mileage will improve after 1500 miles."

    Absolutely not true and I hate when dealers tell people this. :mad:
    Yes, the car may improve slightly over the next 6 months, but don't necessarily count on it.
    This occurs, for some reason, in all cars.
    Take the owners on one specific model and ask them what they get for MPG.
    Some are right on the money, some fall very short and some owners are lucky enough to get amazing MPGs.

    Yes, this has a lot to do with driving habits, choice of fuel, tire pressure, phase of the moon's cycle, barometer pressure, monthly cycle, etc.... but there is no reason why your new RDX is getting 12.8 unless you're beatin the hell out of it.... which you shouldn't be doing yet anyway.(Break-in period)
  • My husband and I just got back from a drive to Toronto, total roundtrip drive was 1136 miles, we received 13.65 MPG in our new RDX, using 93 octane.

    My husband called the dealer and they said that they are telling all RDX owners to wait until 2000 miles before bringing the car in. When asked whether this was a problem unique to this particular car or in general, the general manager circumvented the question.

    We love the car but really hate the gas mileage. My husband is furious, because he had heard that there were some issues with this car about the gas mileage and Don, our salesman said "I guarantee that you will get at least 19 on the highway". That guarantee doesn't mean much now.

    We have a new baby and our budget can't really handle the unexpected cost of all this gasoline.
  • jrynnjrynn Posts: 162
    Before you dump all over your salesman -- ESPECIALLY if you had reason to worry about the RDX's mileage "issues" -- take a moment for introspection.

    How is it that you can afford a $33,000 (non-Tech) or $36,500 (Tech) RDX, but you can't afford gas for it? C'mon, do the math ... If you drive 12,000 miles a year buying $3.00/gallon gas, the difference between 13.65 mpg and 19 mpg is $742. That's a small fraction of the RDX's acquisition cost.

    And if the cost of gas was REALLY that important to you, why on earth didn't you buy a sedan?

    A TSX, for instance, would (A) get better than 30 mpg on the highway (saving almost $700 a year compared to a 19 mpg RDX), (B) cost $5,000 to $7,000 less to buy in the first place, and (C) it would have cost less to insure.

    If you're worried about "unexpected costs," I CAN guarantee you that your new child, not your new car, is going to be the major source. You didn't do yourselves any favors if you REALLY are budgeted so tightly that $700 in gas is going to break the bank for you.
  • steverstever Viva Las CrucesPosts: 41,009
    People's experiences vary widely, but my minivan didn't start consistently getting "ok" mileage until around 7,000 miles and the mpg kept improving well beyond 10,000 miles.

    $700 would just about pay my car insurance for both my vehicles for a year.

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    Need help navigating? stever@edmunds.com - or send a private message by clicking on my name.

  • scottm123scottm123 Posts: 1,501
    And forget the cost of the vehicle.
    People agree on the cost when they take into account what they are getting for their hard earned money.

    I drive almost 30,000 miles a year.
    I dropped a great amount of money on an MDX cause if I spend that much time in a car, I wanted to treat myself to something nice.

    That does not mean however, that I wanna drop $50- into the tank every 2.5 days.

    I got rid of my V8 Jeep Grand Cherokee Limited and it's 15.8 MPG and bought the MDX.
    My 45 minute MDX test drive gave me a reading of 17.9 MPG.

    My new '06 MDX is getting anywhere between 20-24.

    If I was getting 12 in the MDX, I'd be screaming mad too, even though I was able to afford the car itself.
  • I do live in Sacramento so there are no hills. About 70% of mileage is freeway. Are you all driving up hills all the time? The RDX does eat some gas but if you are getting 13mpg that is horrible. Even if I am a lead foot I still get better than that on flat land, maybe 15-16mpg. I too am disappointed in the gas mileage so far however I did get over 22mpg on a freeway run going about 75mph.
  • Before you dump all over your salesman -- ESPECIALLY if you had reason to worry about the RDX's mileage "issues" -- take a moment for introspection.

    How is it that you can afford a $33,000 (non-Tech) or $36,500 (Tech) RDX, but you can't afford gas for it? C'mon, do the math ... If you drive 12,000 miles a year buying $3.00/gallon gas, the difference between 13.65 mpg and 19 mpg is $742. That's a small fraction of the RDX's acquisition cost.

    And if the cost of gas was REALLY that important to you, why on earth didn't you buy a sedan?

    A TSX, for instance, would (A) get better than 30 mpg on the highway (saving almost $700 a year compared to a 19 mpg RDX), (B) cost $5,000 to $7,000 less to buy in the first place, and (C) it would have cost less to insure.

    If you're worried about "unexpected costs," I CAN guarantee you that your new child, not your new car, is going to be the major source. You didn't do yourselves any favors if you REALLY are budgeted so tightly that $700 in gas is going to break the bank for you.


    Thanks for your comments.

    First off, the car cost less than that and we got $14k for our trade-in.

    Secondly, we don't drive 12,000 miles. We put about 26,000 miles per year on our car. That's the reason we wanted the Acura, because we can put a lot of mileage on it and it'll keep going (Honda reliability).

    Thirdly, the difference isn't between 13MPG and 19MPG, it's 13MPG and 23MPG since most driving is highway.

    Fouthly (is that a word?) premium gasoline (that's what the RDX requires) around here isn't $3, it's about $3.09.

    Lastly, given the above, the difference in cost is about $3000 per year.

    Now, perhaps you are a rich guy, and that's great, but we have to earn an additional $5k gross to take home an additional $3k for gasoline. That $5k put into our 401k plan over the next 18 years would pay for the kid's first two years of college.

    Finally, I think that the salesman should not make stuff up. I am not "dumping on my salesman", rather I am stating that he should stick to the facts - great car, but really horribly bad gas mileage.
  • flatsflats Posts: 44
    A recent RDX review from USAToday stated "The test vehicle's trip computer showed 16.2 mpg around town, 20.5 mpg in 550 miles of mixed driving, mainly in hilly terrain." If you drive as much as you claim, keep good records on your fuel economy as the weeks go by. Hopefully it will slowing increase as time goes on. 13.65 mpg is rather anemic, even a Hummer gets better mileage. My current Acura (non rdx) was rated at 22/30, yet I get 26/34 on a regular basis. Hang in there. Please let us know if it improves, and hopefully other owners will share they mileage as well. Best wishes.
  • Road and Track, latest issue, they got 13 MPG on the RDX.

    :lemon:

    I test drove it and afterwards saw the Road and Track article, it's a very nice car, but with that gas mileage I'm staying away.

    Very shocked at Honda. What's the point of the 4 cylinder if the gas mileage is that bad? That was supposed to be the selling point of the turbo, i.e. lower weight, etc. Clearly hasn't worked out that way.

    Maybe they'll fix it for 2008.
  • "With the RDX, Acura seems to have simplified its navigational system, but getting around to enjoy it won't be cheap due to low gas mileage and its premium-fuel appetite. " - USA Today

    "(In the RDX) we could not break 13 MPG" - Road and Track

    "Acura says, adding that a steady diet of subpremium can lead to engine damage." - USA Today

    My RDX is getting about 12 MPG on the first three tanks of premium fuel.

    I hope it improves soon! Our dealer told us that premium was "optional". It's not!!!!!
  • Our RDX now has a little over 200 miles. The first tank got 18.6 MPG...that was about 100 highway miles and 100 in-town miles. That is not great, but not as bad as some have experienced. I'm hoping it improves as the engine "breaks in". That is about the same mileage as the '00 Mazda Millenia that we were previously driving.

    We have been pleased with the vehicle, our first venture into the a luxury line.
  • ccacpccacp Posts: 117
    Hello Everyone, to my surprise the Acura Canada window sticker for the RDX has an EPA rating of 23/30 mpg. There is no way that I think this car will attain those numbers ! How could they even venture to post those numbers when Acura USA has 19/24 on their window stickers !

    On top of that, one of the cars that was on display outside was UNLOCKED ! Dealerships in Quebec, Canada are closed on Saturday and Sunday and thus the lot was unsupervised ! I could clearly see the package to activate the Navi !
    I opened the door, locked the door through the central mechanism and left still surprised at these 2 findings !

    What do you think about the MPG numbers being so different !
  • How come you posted the same thing in at least three different places?!
  • I am confused by your post. First, if the person drives the average miles, I believe the person drives over 12,000/year. If they commute, it is well over that. Also, gas prices will rise (energy growth in China and India is exploding and the curve for petroleum has peaked). So the average over 5 years will probably be more like $4/gallon. This is putting these folks in at around $2000/year, not $700.

    Also, while many people do not care about emissions, others do. The more you burn, the more you pollute - especially in SUVs, which get higher emission allowances from EPA (because, of course, all those contractors driving SUVs have to carry around bags of mortar). Honda advertises incessantly about being so good at gas mileage and indeed, has several hybrids. Why can't they use the Accord hybrid engine in the RDX? Probably because of about $700 in profit . . .
  • robertsmxrobertsmx Posts: 5,525
    Hybrid by itself would have been an expensive proposition. Actually, the very first Acura RDX prototype was a hybrid (190 HP 2.4/I-4 + two in-wheel electric motors for additional 60 HP).

    IMO, 3.2/V6 with 260 HP/240 lb-ft would had been a nice choice, albeit at the expense of torque (the turbo delivers upto 260 lb-ft). But, 2.3 turbo has its promises, and we should see in next TSX too! (at least as a trim level, if not a standard engine).
  • We have 1200 miles on our not-tech and are averaging 22 mpg. Seems to get 22 when running at 80 mph and closer to 25 or 26 at 60 mph. Love the handling and engine performance.
  • robertsmxrobertsmx Posts: 5,525
    Now, 25-26 mpg at 60 mph will change a lot of perception. Keep us updated as you add miles.
  • c_hunterc_hunter Posts: 4,487
    Are you talking about the instantaneous MPG reading? That can be misleading. There's no way to get a good average at certain speeds unless you reset the trip computer at that speed, drive for a while (at least several hundred miles) and then record the average before slowing back down. Even then, it's not realistic because you need to get the whole acceleration/cruise/decelleration cycle in there. SO citing numbers at certain speeds is of limited use.

    As an example, my Outback XT shows instaneous MPG around 30 at sustained highway speeds of about 65mph, and I can average at that speed for a long distance to show MPG in the high 20s. But my overall averages are always 20-22 (maybe 24 on a long hwy trip). Acceleration, going up grades, etc, will drop the instantaneous MPG into the low teens or single digits. Any stop and go or idling mixes in a lot of zero MPG weightings. And that's what drags down the overall average even though it looks good on the highway at moderate speeds.

    I am still skeptical about the RDX's gas mileage, and hope to see people keeping track of their gas mileage for every tank, and tell us what kind of driving it was. That's the best kind of real world data. So far, the numbers I have been seeing are dissapointing.
  • We have a non-tech so I don't get instantaneous mileage. My average has been 20 not 22 as I said in the first line.
  • I am an Acura Salesperson, and I just delivered a RDX/Tech to a city 125 miles away. I averaged around 68 mph and the fuel economy reading was 22.8 mpg. To those people getting 11 to 15 mpg, I would look at driving habits. I have customers that were not getting good mpg out of there MDX,s until my service department showed them how driving styles greatly affected mpg. On our demo model RDX I reset the mpg meter for each test drive, and the variance of readings directly corresponds to how happy the drivers foot is.
  • I have to say that the car is really nice, but the gas mileage is SOOOOOOO bad.

    We have had our RDX for about three weeks, we like the handling and interior quality, and the look of the car, and the car does really start to move after about 30 mph.

    However, like many others have said this thing just absolutely eats gasoline. We were getting about 27 MPG on our 1998 Lexus ES300, and we are now getting 12 MPG on the RDX with the same type of driving.

    We are disappointed to say the least! If this doesn’t improve I’ll be super p.o.’ed!

    I don’t think it’s our driving style either, because we have never, ever had this kind of gas mileage on any of our other cars. Maybe there’s a defect? We should have read the Road and Track review (13 mpg) before buying this car, but we really liked the test drive and got carried away.

    We thought we were getting a “deal” at $700 off list, now we feel like we were taken for a ride. The dealer said that they were selling them as fast as they were getting them in, but there are now five vehicles sitting on the lot unsold, so I think that that was misleading.
  • c_hunterc_hunter Posts: 4,487
    I think this emphasizes an important point about the MPG -- nobody can say for sure how their driving compares to other folks and the related effects on gas mileage, but you can make valid comparisons to other vehicles you own(ed) if your driving style is more or less consistent. So in that sense, I would be pretty disappointed in 12MPG too. Unfortunately, you can't really figure this out until you own the vehicle for a while and drive it a lot!

    My local dealer has 7 RDXs in inventory, but they also told me they were in demand a few weeks back. I think it's classic dealer "talk" to pressure the buyer.
  • Can these engines be "tuned" to get better gas mileage? I have heard that NASCAR engineers run their engines at varying degrees of "leanness" for better mileage, but sacrifice horsepower. I don't know nothing 'bout no engines, so please enlighten me. Thanks.
  • c_hunterc_hunter Posts: 4,487
    The ECU can certainly be programmed for all kinds of different performance/economy modes. Subaru is doing that in their turbo models for 2007, with a knob that selects among three different engine modes (one of which is "intelligent" aka "economy" -- it boosts gas mileage by a couple MPG). Previously, third party tuners have offered ECU upgrades with similar options.
  • jrynnjrynn Posts: 162
    It's not necessary to "tune" an engine to improve gas mileage, and providing automatic transmissions that offer "sport" and "normal" modes that make a performance/economy trade-off is nothing new -- car manufacturers have been doing it for years. It's as simple as using different default shift points. The "sport" mode shifts at higher rpms, with the result that the driver gets closer to the car's peak horsepower & torque ratings (for the RDX at 6,000, and 4,500 rpm, respectively) but pays the price in lower fuel economy. Conversely, a driver who shifts at lower points in the rpm range in "normal" or "economy" mode sacrifices some performance but gains in fuel economy.

    And, especially with manumatic engines, you don't even have to rely on the manufacturer to provide an automatic transmission with two or more modes. You can choose your own shiftpoints.
  • c_hunterc_hunter Posts: 4,487
    I know what transmission sport modes are, and that's not what Subaru's SI-drive is. I think it was pretty clear in my post that I was referring to tuning the ECU maps, not the transmission.

    Subaru already had a transmission with sport and economy modes (since at least 2000, maybe longer). For 07 they are adding an SI-drive knob to turbo models that controls the ECU throttle mapping. In the intelligent mode, SI-drive actually goes with a very conservative ECU map that reduces throttle response and power somewhat to improve economy. The two sport modes go in the opposite direction for faster throttle response and more power. With drive by wire, you can do stuff like this, which goes far beyond transmission modes.
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