- #363 of 391
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Re: 800 miles during x-mas [paulo6]
by sweendogy
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Jan 04, 2009 (11:18 am)
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Replying to: paulo6 (Jan 03, 2009 3:09 pm)
own calculations - i did use the computer to calculate the avg speed.
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- #364 of 391
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Re: 800 miles during x-mas [sweendogy]
by paulo6
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Jan 04, 2009 (2:06 pm)
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Replying to: sweendogy (Jan 04, 2009 11:18 am)
Do you know how well your own mpg calculations correlate to the trip computer calculations? Wondering how accurate the trip computer calculations are.
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- #365 of 391
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Re: 800 miles during x-mas [paulo6]
by sweendogy
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Jan 10, 2009 (3:26 pm)
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Replying to: paulo6 (Jan 04, 2009 2:06 pm)
the MPGS on the car computer are pretty close usually within .4 mpgs.. The only wish is the gas gauge would give a more accurate miles left on tank--i recently had the warning light go off --after driving another 20 miles -I filled up-- and was able to fill over 18 gallons of gas --so another 40-45 miles of highway driving.. This was not the first time. I think the warning light triggers with less then 4 gallons left inthe tank.. --ITs also pretty scary seeing "*****" on your nav screen--
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- #366 of 391
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Re: 800 miles during x-mas [sweendogy]
by paulo6
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Jan 10, 2009 (10:39 pm)
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Replying to: sweendogy (Jan 10, 2009 3:26 pm)
I know the last 30-40 miles TO GO disapear within 10 miles (or even less) usually and I get the scary ******. My car (08 G35Xs) has just over 3K on it and I struggle to get 17MPG on combined driving (mainly city). I still struggle to get to 20 when I am on HWY though. I am blaming cold weather and NEW car factor...will see what happens in summer. This triggered my Question regarding accuracy of trip computer.
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- #367 of 391
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Re: 800 miles during x-mas [paulo6]
by sweendogy
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Jan 12, 2009 (6:36 pm)
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Replying to: paulo6 (Jan 10, 2009 10:39 pm)
i have the 07 g35x -- from my Xperiance i would think your MPGS will go up as the car ages -- if you look at my past posts you'll see they have risen a bit. I do alot of city driving as well and thats where this car hurts you- i get 15 mpg in the city still. Highway driving -- on longer trips i engage the cruise and see mid to lower 20's at speeds above 75
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- #368 of 391
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Re: 800 miles during x-mas [sweendogy]
by paulo6
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Jan 12, 2009 (7:52 pm)
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Replying to: sweendogy (Jan 12, 2009 6:36 pm)
I am up to 3.5K miles on my car and today was the first "long" highway driving I've done in some time, and based on trip computer I have noticed a significant increase in MPGs already from 1000 miles ago...I was hitting low 20s
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- #369 of 391
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Re: 800 miles during x-mas [sweendogy]
by almatti
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Jan 21, 2009 (7:43 pm)
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Replying to: sweendogy (Jan 12, 2009 6:36 pm)
I have a 2007 G35x, AUTO, 15k on the clock. NY area. My experience is about the same reported generally here. 14-15 City ( little better in the warmer weather, a little worse with the Winter Blend gas). Best Highway mileage which did go up by maybe .5 MPG with useage is 24.5 on a 250 mile trip at Mass -65-75 MPH, cruies control when possible. I have found that the of course, with the very cold temps lately, and "winter Blend" gas, MPG in the City at 13MPG, without really hard driving. I do like to use the DS mode though. But as others have said on this thread and other forums, You don't get the G for mileage. This baby is meant to be "driven". I've owned and driven a lot of cars over 38 years [including Daddy's 1966 Chevy Impala Supersport, & later a 1972 Oldsmobile Delta 88 [I must say that was a good car]- Fords, Nissans, Mitsubishi, Subbies, Pontiacs, plus many other rental cars to numerous to mention, etc], this G35X is without a doubt the best car I've had overall for driveability, performance, reliability, and pure driving pleasure.
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- #370 of 391
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Unhappy Girl - I Should Have Bought a Honda
by trinbago1
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Jan 22, 2009 (5:05 am)
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I bought a 2008 GX and presently have a little over 300 miles on the car. I understand that the new factor and weather plays a role, but DAMN I am only getting about 12 MPG (if so much). I notice that I only get about 100 miles with 1/2 tank of gas.
My Jeep Grand Cherokee gave me better MPG...LOL.
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- #371 of 391
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Re: Unhappy Girl - I Should Have Bought a Honda [trinbago1]
by pscheid
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Jan 22, 2009 (12:08 pm)
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Replying to: trinbago1 (Jan 22, 2009 5:05 am)
trinbago1,
It's an undiagnosed medical issue.......with your heavy right foot. Granted, the X is a few hundred pounds heavier than the Coupe, but you have to really be on it consistently to get as low as 12. Glad you are enjoying the car! And don't you just hate to see those gas prices relative to last August? Yahoo! 
Jack
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- #372 of 391
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Re: Unhappy Girl - I Should Have Bought a Honda [pscheid]
by sweendogy
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Jan 24, 2009 (1:15 pm)
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Replying to: pscheid (Jan 22, 2009 12:08 pm)
i'm getting 13 mpg on the current tank -150 miles - 90% city driving --and i'm not beating on the car.. the avg temp has been 20 degrees --car not a good city driver for mpgs add in the cold and the winter gas= even worse MPG's.
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