You are here: Forums Sedans Acura TSX Acura TSX Real World MPG Numbers

Acura TSX Real World MPG Numbers

221 messages,  Last post on Sep 21, 2009 at 2:10 PM

You are in the Acura TSX Forum. Your Hosts are pat & karens

What is this discussion about? Acura TSX, Fuel Efficiency (MPG), Sedan

Messages Page 22 of 23 1 ... 17 18 19 20 21 22 23 Prev Next Last

Go To Msg # Search This Discussion

#206 of 221 Re: Trip computer is way off my manually calculated MPG [kjnorman] by obladida1 Aug 26, 2008 (4:05 am)
Replying to: kjnorman (Aug 25, 2008 6:26 am) I have an 07 auto/navi TSX and this summer I sadly discovered the exact same thing. The trip computer is off by 1.5 to 2 MPG in its favor on EVERY tank fill. For about a year I thought I was averaging over 29 MPG, but the reality is that I'm only getting around 27. I am extremely disappointed. Can the dealer fix this?
#207 of 221 It's PR BS, Based. . . by cdnpinhead Aug 26, 2008 (5:24 am)
on the assumption that the vast majority of the motoring public couldn't calculate MPG manually if their lives depended on it.   Every other item on my '08 TSX (currently ~9K mi) is within a percent or two of what it should be (speedometer, odometer, outside temp, etc), but the computer is consistently 2-2.5 mpg high (varied from 35.5 indicated vs. 33.47 calculated to the more typical around-town 28.5 mpg indicated vs. ~25.8 actual). Since the computer works off the fuel injector pulse length & other parameters, I wouldn't expect the numbers to line up perfectly, but I would expect it to be low as often as it's high and to average out pretty close to reality. It's absolutely clear that that's not the case.   Sounds like it was real back in '06, but got "tweaked" for the '07 and subsequent model years.   I'm sure that extra 2 mpg is selling a few more TSXs via word-of-mouth. Either way, I'm quite pleased with my gas mileage, given the car's performance, even when it's calculated correctly.   As to the dealer being able to adjust/correct it, I'd be beyond stunned if such a thing were possible, or even desireable, given the number of times dealer service departments foul up things that had nothing to do with the initial "issue," while not fixing that either. Replies to this message: obladida1 (Aug 26, 2008 9:16 pm)
#208 of 221 '04 vs '09 by deong Aug 26, 2008 (4:27 pm)
Having a touch of OCD and a full Ph.D., I have always recorded miles traveled and gas paid for with each fill-up. For both the '04 and '09 (now 5,000mi) the "real" number is always 2-3 mpg below the TSX screen number.   Now, this could be a cheat by Acura.......or it could be a systematic cheat by the pump gauges (doesn't take much at $4,00/G to greatly increase profit margins).   [Prompted by a recent fill-up at a BP station that put 18.3 G into a 18.5 G tank ('09) and I know I had more than a G left.] Replies to this message: cdnpinhead (Aug 26, 2008 4:53 pm) deong (Aug 26, 2008 5:30 pm)
#209 of 221 Re: '04 vs '09 [deong] by cdnpinhead Aug 26, 2008 (4:53 pm)
Replying to: deong (Aug 26, 2008 4:27 pm) Well, in the states (and provinces) that I've lived in, the government shows up regularly (unannounced, I think, yearly or every two years) with their little five-gallon containers with the long neck and sight glass so that they can verify that every pump on the premises is within a fraction of a percent of what it should be. There's temperature correction for the volume and the whole bit. I believe that the vast majority of gas stations are legit.   That said, I've run into several (usually off the beaten path) stations that were keeping their thumb on the scale.   What I've seen on my TSX computer covers dozens of different pumps/stations in several states. It's very consistent. Jiggery-pokery for sure. Replies to this message: deong (Aug 26, 2008 5:30 pm)
#210 of 221 Re: '04 vs '09 [cdnpinhead] by deong Aug 26, 2008 (5:30 pm)
Replying to: cdnpinhead (Aug 26, 2008 4:53 pm) ..so maybe it's my hp33s...? Durn RPN. (Never got close for some 50,000 mi).
#211 of 221 Re: It's PR BS, Based. . . [cdnpinhead] by obladida1 Aug 26, 2008 (9:16 pm)
Replying to: cdnpinhead (Aug 26, 2008 5:24 am) The frustrating part is that I know it is possible for the computer to get it much closer than a 1.5 to 2 MPG difference. My wife's 06 Toyota Sienna is 75% dead on with an occasional +/- 0.1 or 0.2 difference.
#213 of 221 MPG numbers from my trip by abhiutd Jul 16, 2009 (8:26 am)
Last week i made trip to Niagara (440 miles) and set up the cruise for the first time at 61 and 71 on 55mph and 65mph limits respectively. Got an unbelievable mileage of 37.5 mpg (my manual calculation). Computer was reading 38.8 mpg. From now on i will be using cruise way more often on long trips. I have a 06 TSX Automatic, 25k.   cheers!
#214 of 221 2005 TSX numbers by kap2406 Aug 01, 2009 (4:37 am)
I haven't posted in this forum ever since I got my TSX w/o navi in 2005. Now that my family grew and I am considering buying an MDX, I re-discovered this forum Anyway, here is my record on the highway: I drove from Oak Harbor, WA to Grants Pass, OR on one tank of gas, the distance of 512 miles, using 15 gallons of fuel. Was doing 65 and 75, tire pressure was 33F/31R, with my wife and my two-year old daughter, and full trunk of crap for camping at LAke Tahoe. I don't have a trip computer, so I have to calculate everything on my own... That's over 34 MPG; but on average I get around 32.5 MPG on the highway, an I have noticed gas mileage improving over time. City driving is very subjective - I get around 23 MPG where I live, but I don't live in Manhattan, so I might face a lot less traffic then some of you .
#215 of 221 Consumer Report numbers at 55/65/75 by phx1021 Sep 12, 2009 (3:02 pm)
Consumer Reports recently ran a FE test of several vehicles, one of them being the 4cyl TSX, at constant speeds of 55, 65, and 75 mph. The numbers for the TSX were pretty impressive. 39.9 mpg 55 mph, 35.5 mpg 65 mph, and 30.7 mpg 75mph.   With numbers like these, I am strongly considering the TSX for my next car...even though I love the smoothness and power of having a V6. Replies to this message: 1bythesea (Sep 13, 2009 1:40 pm) 1bythesea (Sep 13, 2009 3:18 pm)

Messages Page 22 of 23 1 ... 17 18 19 20 21 22 23 Prev Next Last

Go To Msg # Search This Discussion

You are here: Forums Sedans Acura TSX Acura TSX Real World MPG Numbers