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Pontiac Grand Prix: Real World MPG

Karen@EdmundsKaren@Edmunds Posts: 5,024
Share with other Grand Prix owners your actual MPG.

Karen-Edmunds Community Manager



  • Nice to hear about the 26-27 mpg ocmike. I'll see if I can top that :shades:

    I'm getting really jazzed...still waiting for my gxp to be delivered. Should be any day now.

    By the way, Gxp Mpg sounds like a good Serbian name, or a heckuva Scrabble word.
  • What color? Loaded?? Just got mine (Stealth Gray) and got to drive it finally, was out of town right after I picked it up. OH MY GOD.....I love this thing. I mean all I was doing was errands and I was having a blast. Filled up, only need 7 gallons, used mid-grade (do folks see the difference in fuel type?) but was getting 21.9 MPG mostly cityish driving and having quite a bit of fun.

    You will love it when you get it.

    PS one BMW guy and and two Maxima's just stared in the parking lot.

    PPS: My sun clip on my prescription glasses, filters out the light frequency of the HUD. Anybody else have this one?

    With too big of grin,

    Bubbaman :)
  • What color? Blue/green crystal. From what I've seen, it looks totally sweet. Interior: Tan leather.
    Base radio -- I'm adding upgraded speakers. Side airbags...but NO SUNROOF! I can't stand the things cuz I'm always hitting my heads on them, on just about any make or model.
  • Yes, I wanted the Monsoon system so had to get sunroof. Being short the room is no problem, but with my allegies, won't be open much. I would have liked to get the tunes without the need for the sunroof. From what I have seen in the inventory around the DFW area, almost all GXPs on the lot have both leather and sun and sport. Couldn't find one on the lot to deal without it. Enjoy your car when you get it.

  • gxp4megxp4me Posts: 7
    Hey Bubba ... yeah I have the same problem with my sunglasses too. It is because they are polarized ... I know that if I stare straight ahead it almost filters the HUD completely but if I tilt my head to the side slightly it comes back a little bit.

    No problems though! ;)
  • Did you get your GXP yet? I am on my second tank and with some fun and city/hwy mix am getting 21.9 and 23 MPG, by my calculations. The Average on the console MPG said 20.7 and 21.7 (reset each time). I filled the tank all the way up. Has anybody else noticed a discrepancy between MPG on the console and actual. Pretty good mileage for city/hwy mix. Imagine broken in and all hwy could do close to MPG. Besides with XM, some ocassional horsing around it has been great, even at $2.85/gallon.

  • Get it this week :D

    I'm totally jazzed. I'll give detailed report here when I get it. Hell, I've wasted enough time on this forum when I should be making money instead :confuse:

    I'm impressed by your mpg. I'm interested in what will happen when the car has 10,000 miles and is broken in -- and the weather is warmer (at least for least the snow is melting here).
  • Oh, yeah, I'll be checking the mpg too. I want to see if the car computer is accurate... :blush:
  • The last MPG had the AC on, it has been 80s-90s the last week. So AC really didn't change the MPG too much.

    Enjoy the new car
  • So what are you averaging for mpg...?

    (still haven't gotten the car...waiting...waiting...)
  • Let's see, only three tanks, I have been traveling and not much time driving it. First tank 21.7 (my calculation) (20.3) by the computer, mix city/hwy. Got 23 (my calc) 22.3 computer mix city/hwy. Got 18.8 my calc, computer 17.9 strictly city. Mostly running either mid grade 89 or super 93. Hope you get it soon. I got flagged down at Sam's Club the other day by a couple asking and looking at the car. We spent about 20 minutes talking about.

    You will love it.

    Bubbaman (Gary)
  • Thanks Gary. Yes, I am still waiting..... :(
    The car has been built and it's in transit. The salesman wasn't lying when he said six to eight weeks. It's officially six weeks as of today and the car should be at the dealer either tomorrow or Monday. I was kind of hoping it would have been four weeks of course.

    That's pretty good mpg. I can never get a good sense of what real world mpg will be by reading car mags...They of course hammer on a test car, and the faster the car the more they seem to hammer it. I'm realllly hoping the car is in tomorrow..

    As to seats: Leather seats in gxp come in suede inserts, but you CAN buy a gxp with cloth seats. it's a 1000 bucks less, but they're rare.
  • One additional positive Benefit I got with the new GXP was lower insurance rates. Go figure. I have Allstate and my 2003 Civic SI was about $100 every six months more. I asked why and my agent said more safety features.

    Anyway hope you get your car soon. I have had mine about 4 weeks, only have 504 miles on it, MPG should get better as it gets broken in.

    Agree with the seats comment. When I was looking for a GXP almost all of them came fully loaded minus the Nav system. I had a hard time finding any without the sunroof/CD system.

    Wish I could get the tunes without the sunroof and wish the Monsoon would play a MP3 CD, tried with no luck.

    Bubbaman (Gary)
  • Nice to hear about your insurance rates. I looked into what it would cost to insure a GXP before I ordered it. The rates are good. Less than small cars, for sure. Heck, the GXP is even quite a bit less than a Prius. I had my agent run down the costs of a bunch of cars just to waste her time....

    Insurance companies only care about one thing: payout rates. Big cars are safer than small cars, no doubt about it. I used to pay more for insurance for an old Ford Escort than I did for a new Suburban.
  • rmozolrmozol Posts: 124
    I finally surpassed the 500 mile mark, and took it on the road after fill up. I was doing a good amount of WOT passing, not to mention LONG road jams, and stopping, due to construction. I still averaged 20.3 MPG, 20.5 by my calculations. I was pretty impressed considering the horrible conditions I was in. I NEVER was even able to use the cruise either. Also, where does your temp gauge needle sit? Mine actually creeped up a little, AFTER I turned the AC off, and got near a lake where it was a lot cooler. The needle sat past the center mark. I'll keep an eye on it from now on.
  • Robert,
    It was 102 and 100 last monday and tuesday in Fort Worth and the temp gauge was mostly at the middle. Mind you I didn't sit in a lot of traffic, but it didn't seem to creep. I have about 800 miles on mine and have seen my last two tankfuls city/hwy mix around 22.5 to 23.2 MPG (my calc and the computer). I think I have seen a slight jump after 500 miles or so. It is hot early here and will last a long time (Oct) so will let you know if I see temperature creep.

    Loving my GXP in Texas,

  • mcp6530mcp6530 Posts: 11
    I don't know how you guys do it! Highway driving, several trips of 350 miles and i average 21 or 22 mpg...granted i'm doing 80 to 90 the entire way. Then city driving, i'm lucky if i clear 18...I sure miss my supercharged bonne ssei! no, not really.
  • When I drive all city 17-18 is the norm. Even a little highway time helps, but around town, traffic isn't bad but I only go 65 or so, 80-90 will really hurt mileage. A lot of times in the morning and evening commute I am either not awake enough or still thinking about the day in the evening, so I use the cruise at 65. It's the errands on weekends that I really get to have fun with the GXP and V-8 power and my MPG suffers, I have had a 16.5 and 17.2 MPG tankful. That said just slepping into work is still great with the comfortable seats and XM radio. I love the GXP even if I don't use all the V-8 power all the time. Do you run premium gas? I have been comparing and maybe it is my imagination, but I think I get a couple MPG better with premium, only time will tell.
  • I've had a chance to do some longer driving in the GXP. AWESOME CAR! Today I cruised just a little below 60 through metro highway traffic. The traffic was weekend, and I was in in no hurry, but I did have to ease up occasionally. The mpg for the 25 mile trip was 28 accordign to the computer. THAT ROCKS! I can get ABOVE 30 if I really baby it. Normal driving (LOTS of stop and go city and, of course, LOTS of letting friends test drive the car) nets me about 19 mpg. And my friends ALL want to drive this car. That really drives the mpg down. :cry: I'm driving it like a granny. My chums love the acceleration. Best car I've ever owned, by far. Quality has been terrific. Fit and finish are flawless. Brakes are stunning. Hit them and the car just....stops. I can't get the car much though because my wife drives it all the time... :(
  • bob97bob97 Posts: 16
    Everyone seems to be doing a lot better then I am with mileage. My 2006 GXP with a little over 5k miles is only giving me 14 to 15 MPG driving around town – premium gas only and without a heavy foot! I am almost tempted to complain to the dealer about my low MPG, but I cannot image what would cause one car to be off so much (it runs great in every other respect). I am constantly driving up and down low gradients, but I’d expect the downs to average out the ups.

    Is anyone else falling short of the MPG numbers being posted here?
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