Last post on Aug 28, 2013 at 6:17 AM
You are in the Acura RDX
What is this discussion about?
Acura RDX, Fuel Efficiency (MPG), SUV
#174 of 223 Re: Acura RDX Real World MPG
May 13, 2008 (8:01 pm)
We've had an RDX three times when one of our cars was in the shop. We were surprised the mileage was so low the first time we had one so the next time we did an experiment. We filled it up, reset the mileage and drove it conservatively like we do our TLs. Then we filled it up again and drove it fairly aggressively. Then we filled it up again and drove it on the highway. Each drive was at least 20 miles, which was plenty of time to get a stabilized reading. Our results (as displayed by the computer) were 19 mpg city driving very conservatively (almost never letting the turbo kick in), 15 mpg driving aggressively, and a very surprising 23 mpg highway at only 65 mph. Actual computed mileage (miles / gallons) was slightly lower, 5-10%. When we reported this to the dealer they said the reason was "we always put regular in our loaners, you'll get much better mileage with premium". Then we told them we specifically got a loaner that was near empty and filled it up with premium so we could see what the best mileage the RDX could deliver. We definitely could tell a difference in performance and mileage compared to the prior loaners so the premium did make a difference. With gas up over 50% and continuing to rise since we did these tests the RDX is out of the running now for replacing our 1999 TL due to unacceptable mileage.
#175 of 223 Re: Acura RDX Real World MPG [rickpoole]
May 28, 2008 (11:54 am)
Additional Wife /MPG report. She now has 11700 miles on her 2007 RDX recently switched to regular, about 500 miles ago. Mileage at 23 mpg, computed by hand. I do the calculations myself as I fill it up. I wish I could get that kind of mileage.
Jun 27, 2008 (11:32 am)
I'm getting very poor results on the RDX. With conservative driving (minimal turbo kicking in) I'm getting about 14.8mpg. With more aggressive driving and turbo kicking in more often its 10.8-11.4 mpg. This is a 4 cylinder car, not a hummer or escalade! Every time I look at the gas gauge I cant believe how quickly it goes. I only do city driving, so it is all stop & go, and short trips. But I never got above 15mpg.
#177 of 223 Re: Very low mpg [luckygirl25]
Jun 27, 2008 (11:52 am)
15mpg with minimal use of the turbo is really terrible. Is this on the highway or on stop-and-go city streets? I regularly get 24mpg or more on long distance highway trips. Half-city and half-highway is around 20mpg. If you're getting much less than 20mph on the highway, I would get the car checked out. Obviously, you're going to get much lower gas mileage at slow speeds with lots of cold starts.
#178 of 223 Re: Very low mpg [johnny98]
Jul 16, 2008 (12:50 pm)
Driving an '07 RDX with about 8K miles. Trip through NY, PA, MD with a lot of highway but with a fair amount small speed-trap towns and 2-lane roads and hills. Driving mainly gently with a lot of cruise control, but I'm not a hypermiler and I'm willing to spool up the turbo to climb hills and pass dunces.
Result" I got 25+ out of the first tank and 26.5 out of the second. Pumping the tires to about 40psi was the only thing I really did for trip prep. This might be the point where I really started to love the RDX again.
#179 of 223 Re: Very low mpg [johnny98]
Aug 15, 2008 (6:09 am)
Its all city driving, like stated, so its stop & go every couple blocks. I did take it to the dealer, and they said its "normal" to have variances between sticker and actual due to the way you drive. Of course it is, but I have an RDX and not a hummer, so these poor results are ticking me off. I wouldn't have gotten such a small SUV had I known it was such a gas guzzler. I was in my friends Mercedes ML350, and I saw her monitor display 17.9mpg. I was astonished. We drive the same places, same city driving, and she's getting much much better mileage on a 6 cylinder much heavier SUV. I got this nice turbo that is sucking me dry. If you guys would buy again, would you get the RDX due to this mileage trouble?
Aug 19, 2008 (9:43 am)
We are getting 20mpg after 500 miles in 50/50 stop and go + 70mph express way driving.
#181 of 223 2008 RDX - 24.0 mpg highway
Jan 03, 2009 (11:19 am)
On 9/20/08 I got 24.0 mpg on a 134 mile trip from Irvine, CA to Santa Barbara at an average speed of 67 mph. Light traffic, little or no wind, 3 adults, overnight luggage, roof rack, but nothing on it. All numbers from the trip computer. This car was purchased Dec 2008 and had about 8000 mi on the odometer at the time. My only real complaint about this car is the quirky voice recognition system in the Tech package.
#182 of 223 Recent MPG
Jan 04, 2009 (9:10 pm)
I have a new 2008 RDX, base (owned for 3 weeks). It's Black/Black and shines up beautifully (using Klasse). Early mpg says 24 plus on the highway. 15 plus exclusively stop and go local driving. I expect that once it has 10,000 miles on it, mpg will be slightly better by then. Other than the not-so-great mpg, this car is fabulous, and I view the mpg as one small compromise in exchange for a great drive.
#183 of 223 2007 RDX mileage at 8000 mi
Mar 11, 2009 (4:59 pm)
On a recent trip between Park City, UT and Sun Valley, ID on mostly (80%) freeway at 75-80 (75 speed limit) my mileage was 23.7 by hand and 22.8 on the tech computer. I use the paddle shifters for almost all deceleration, used no A/C with windows closed and do not do any special tricks to enhance mileage. Fuel used is 91 octane.