ucla95

That's the big question mark. Esp city results please

fast1

Curious myself but we probably won't get real accurate data until people start putting some miles on their RDXs and the engine breaks in. My TSX was low (slightly below the EPA rating) until after about 4-5K at which point the mileage stabled out(slightly above the EPA rating).

dhager

in one day of driving in the city it seems to read 13mpg and a bit of highway driving 20.9mpg. The Inst. mpg reading is confusing the hell out of me..any owners understand it? I have 150miles on the odo.

http://i16.photobucket.com/albums/b7...r/435eebf6.jpg

CGTSX2004

iTrader: (1)

If it's the same one as on the TSX and RL, each hash mark represents a 5mpg increment. So the hash mark right under the number 20 represents 20mpg. If that hash mark appears, it means you are meeting or exceeding 20mpg at the current moment. Until you hit 25mpg, the next hash mark does not appear.

Does that help?

wolfeman314

Also, in my experience with insta-mileage meters, it's really hard to get a good feel for what's going on. The car is constantly reacting to changes in the road, and your mileage fluctuates accordingly. So you really need a good eye to keep track of your instant mileage. . .

hanggaw

We have exactly the same observation with regards to the fuel consumption of the TSX!

ucla95

bump

amypinseattle

I track gas mileage EVERY time I fill up...it's the anal side of me. It's something my dad instilled in my from around 12 years old! I keep it in a book in the glove box.

My current CR-V gets on average 21 (half stop and go traffic and half highway - around 70, driving). The lowest it's ever goten is barely under 18...the highest is 26. I've kept track of it since I drove it off the lot. I'll do the same for this one!

rdxsteverino

My wife records her mileage on her PDA every time she fills up and downloads it to her computer to do statistical analysis - no joke!

druggist

I'm getting just 17.5 mpg on the first tankfull. I only have 200 miles of driving so far. There are 2 trip odometers which figure average mpg that you can reset with each tankfull of gas. Who cares about mileage, its a blast to drive. No turbo lag and it accelerates like a rocket when you boost it up. The paddle shifters get some getting used to, they work both in D and S. It's fun to downshift at 60 mph and accelerate past the slow movers. The problem is your going 80 before you know it and have to ease off. The gauge shows maximum boost (13.5 lbs) whether you are accelerating from 20 to 40 or from 40 to 70. If you fill up every other week and use premium (which is about 25 cents more) and get 20 gallons,
you're spending about $100 to $150 more per year. Big deal

Teledatageek

I'm curious about real world mileage as well. I have read a couple of posts on Edmunds boards about an owner getting 14MPG after several hundred miles. That would be a deal breaker for me to switch from my FX which typically gets 20MPG. I'm OK with premium but not a 25%+ drop in current mileage.

wolfeman314

Autoweek has a driver's log out this week on the RDX. . . they observed 18.52mpg.

Click here for the article

Teledatageek

Thanks for the link that sounds a bit better. I'm sure it matters greatly how spirited
the driving is. I'll keep an eye out for more info before I pull the trigger.

acuraB

After 800 miles I am getting 12.8MPG on my RDX.

The most recent Car and Driver (or Road and Track, or whatever) road test also got around 13MPG.

The car is otherwise very nice, but I would not have purchased it if I had known that the mileage was so bad.

The dealer checked the car and said that "it will get better after 1500 miles", however I really doubt that at this point.

Our gasoline costs with this car (as opposed to our Honda V6) will be double, i.e. an additional $2400 per year. The RDX requires premium fuel.

Several other owners are reporting the same thing so this isn't a one-off problem.

Honda needs to get this sorted out immediately.

Teledatageek

Ouch. Is that based on manually calculating mileage between fill-ups or using the trip computer? I would not buy either with that sort of mileage. Do you consider yourself a spirited driver?

vishnus11

C&D got 17mpg, and R&T got 13mpg - but both beat the shit out of the vehicle in erms of driving style - for example the RAV4 and Mazda CX-7 got within 1mpg of the RDX's figure.

The mileage will improve significantly beyond break in. The mileage of my S2000 improved significantly after putting 3-4000 miles on it.

Last but not least, how are you calculating your mileage. Are you filling up at the same gas station/gas pump, filling to the cutoff, then resetting the odo, driving and then repeating the whole thing again, whilst recording the odo reading and amount of gallons pumped?

MR1

If the RDX engine is like other Honda engines, the mileage should improve over time, like 3-5000 miles minimum. That said, I find the the driving environment greatly affects the mileage. In my TL mostly city lots of stop and go = ~15.5 mpg. On the highway it's more like ~30 mpg. My city driving is extreme with me averaging 15-20 miles per hour per my MID. Point is, with the type of city driving I must do, mileage sucks. This is true for most cars based on my driving experience.

nying

I just took my RDX for a roadtrip this weekend, and got 20.6 mpg for the 800 mile trip.

Road mix:
- 65% highway (average 75)
- 20% winding state highways (average 45)
- the rest local stop and go traffic

This is better than the first few hundred miles in the city, so I'm hopeful it'll improve a little more.

yacro

I certainly hope the MPG picks up as that is a significant factor regarding if I buy the RDX or not.

As for my TSX, at first, I was dissapointed about the MPG too. I think when I first got it, it was around 20MPG city driving and 25 highway. Now highway is more like 30-33 but city driving is still bad b/c my driving habits... It would be interesting to know what the MPG is after 2000-3000 miles of "break in" as people call it.

acuraB

Thanks for your responses.

It was slightly agressive driving with a lot of highway driving.

To calculate gas mileage I fill the car to the cutoff, write down the current ODO, drive the beast several hundred miles, then fill to the cutoff, and take the (current ODO - recorded ODO)/(number of gallons purchased) to get the per-tank gas mileage. I also keep a running tally for my total mileage.

Right now my per tank average is 12.9 MPG.

It's a great car but the gas mileage is horrific. Apparently I'm not the only one with this problem. I'll take it to the dealer at 3000 miles and will let you know what happens.

Teledatageek

I hope your mileage improves. I think I'll hold off on a decision for a month or two and see how the mileage reports come in....

ArthurKnight

My question is, how many miles are you getting out of a tank? The RDX should be able to do 350 according to one review. I know on other cars I've driven if I filled up early the guage would become wildly inaccurate (showing empty far to early). Right now I'm at about 250 which is where I filled up last time. The range is showing close to 0. I'm going to try to hold off until 300 before I fill up. I'm also showing about 16 mpg according to the system.

Madison3

Haven't got to a tank's use yet, but my first 100 miles recorded a consumption rate of 18.5 MPG. Mix of suburban driving and short stretches of the Interstate.

TorontoTL

The numbers you guys are posting actually sound quite reasonable given the fact that none of the engines are broken in. It should be interesting to see how they improve with use.

RDXMemphis

Now that I finally have my RDX back from the shop, I've been getting 16 mpg with city only driving.

This is pretty good in my mind although I do hope it improves with time.

druggist

Getting 20 mpg on the second tankful according to the trip odometer. Mostly stop and go driving - to and from work. Tried Shell - 93 octane - I think most of the other stations have premium of 91 octane - might make a difference.

rdxsteverino

First RDX avitar I've seen on this board - excellent.

amypinseattle

I think it's a fabulous idea! Other people think I'm extreme and anal...obviously, I see nothing wrong with recording the information!!!

sctlenz

Just picked up a new RDX Tech On the 300 mile trip home I averaged 22 mpg at around 75 mph.

Teledatageek

Now that's encouraging!

chyllintsx

lol

Chopsie

This will be interesting to see how the RDX does once people start hitting the 1500-2000 mile mark. I went out and was looking at them yesterday because my dealer just got 5 of them.
I was atonished at the EPA estimates, I was seriously expecting better, but, we will see.

Soulpt

17.5-19.0 in the city as this is where I've done most of my driving and I've had it only 10 days.

SolidState

For the first 500 miles 18-20 City and 24 Hwy. I was expecting better.

elgage44

18-20 city and 24 for highway is what the sticker says. I'd be Ok with that, not thrilled but OK. I was worried, still am actually, that the mileage won't be even that. This is the biggest reason I'm holding back on buying the RDX. The other reason would be to wait till the second model year. I bought the TSX in its first model year and it has some minor fit&finish flaws acknowledged by Acura and the dealerships and the second model year they threw in a few things such as power driver's seat and XM radio standard -- as they should have been already.

gmmulligan

I have a little over 600 miles on my RDX and started to check mileage at about 300 miles ago. My current reading is 22 MPG. My driving has been a mix of city and highway. Better than I expected.

black label

Instant MPG guages are the biggest waste of space in an automobile. Seriously, what benefit is there to knowing your second by second mileage. The only possible benefit to Inst MPG is trying to maximize mileage while using cruise control, other than that how can this possibly help you?

black label

What ever you do, DO NOT USE FUEL LOWER THAN 91 OCTANE!!!!!!!
Fuel to air mixture is everything with a turbocharged motor. If you suffer detonation, Acura will drain your tank and test the gas, if it is not 91 or better, the repair will NOT be covered by warranty.

DogPatch

first off, hi; i'm another proud owner of the brand spankin new RDX. i've had it for a week as of today.

now that the foreplay's out of the way, from my second tank, i averaged 20mpg. mileage consisted mostly of city driving, with some highway mileage thrown into the mix, as well as some spirited driving.

this is based off of how many miles i had on the trip divided by how many gallons it took to gas her up.

as for the instant mileage display. i've found that having a display that shows your real time mpg's helps more in applying the throttle more efficiently than wastefully at speed. sounds goofy, but in my legacy gt for example, if i maintained the real time mpg around 25mpg, actual gas mileage from a tank would be in the neighborhood of 15-16mpg. however, if i eased off, and kept the real time mileage hovering around 32-35mpg, i found that my actual mileage jumped up to between 19-21mpg, depending on the city/hwy mixture of driving.

just some food for thought. speaking of food...time to eat

ArthurKnight

I'm still under 17 mpg on mixed driving off my 3rd tank. I'm in LA so I've usually got my AC on. For those with high averages, are you guys using your AC?