My g6 is currently at 1100 miles but I reset my fuel econ meter at 800. For that first 800, my meter read somewhere between 22-23 mpg. The vast majority of that was in town driving with speeds 35 mph and lower. I reset the meter at 800 miles because I was going on a 150 mile trip of highway driving and wanted to see what I would get on the hwy. For that trip the meter read just below 32 mpg.
Sorry if I sound stupid for not knowing how, but How did you reset your fuel econ meter?
Also just hit 100,000 miles getting 24 mixed right now. Just cleaned the throttle body a little and already brought my mpg up one mpg. I'm going to fully clean it somtime this week, to increase mpg, and also adding a K&K air filter so I'll let everyone know what the results are.
I average about 19 in the city. On my 200+ mile highway treks I have gotten about 33 every time. These are according to the computer. I would say the actual values are somewhat lower. Over all I'm pleased with the fuel mileage, it is improved over my Grand Am GT.
Yea, when im Driving the gas gauge is always lower than when i put it in park, it really shifts around a lot, I think the fuel sensors arent too great.
Im used to floating gauges (my Z would slam you around in the seat and easily exert ~1G when pressed, parking on a hill, stopping hard, etc.. I know how it is 'normally').. this is much different. Its almost like its 'estimating' how much fuel you have??? Hard to explain.
I noticed that to...any sharp turns and abrupt stops my fuel gauge is all over the place. BY the way im geting 18mpg mostly city driving.. alot better then the 9mpg in my suv
I have the exact same car as the original poster - a 2005 G6 GT - and I have consistently gotten 21 mpg in a mixture of city and highway driving. Could be better, but I suppose it could also be worse.
I have a new 2008 G6 convertible (love the car!) with the 3.9 HO. I have 520 miles on it, and I'm getting 19 MPG in town - I'm ecstatic about 19 MPG because the sticker said 15 MPG in town.
While I don't really hot rod the car, I don't drive like a grandma either (I do drive conservative, though, most of the time).
When you folks post your MPG, please try to include engine size, so we can make better comparisons.
I got as high as 35.7 mpg on the highway today at about 65-70 mph, 3.5L V6 (18k miles) Sedan.
I filled up the tank, reset the mpg on the radio display and hit the highway without any stops. After about 25 miles I was still getting a steady 35.7. I'll be driving down to PA tomorrow (mixed city/highway and hills), I'll post what I get.
WOW! 35.7 for a 3.5 by GUNIA is awesome. I drove about 25 straight highway miles after a fill up today, and got 25 MPG from my 3.9.
BTW, I have the 4 speed auto. I would assume that the 6 speed auto would do even better, but GM decided not to do that to keep the price of the convertible as something we common folks could afford.
I still get 28 mpg with mostly highway driving in my Impala (3.8L V6). I did get an average as high as 32 mpg. The 3.9 obviously has more power, but might also have more aggressive gearing. Also if you have larger rims, that adds additional weight to rotate...not to mention the additional weight of the convertible.
Ok came back from my little trip. Total miles 342.5. The radio display reads 30.1 mpg. I calculated 28.1 mpg. There is a little discrepancy, could be the method I use, but even a worst case average of 28 mpg is great.
The trip was about 70% highway (60-70 mph), 30% local (30-45 mph, lots of traffic lights, hills, no bumper to bumper traffic).
I was also using a fuel system cleaner during this trip, but I doubt that had an effect on the mpg.
I didn't check the tire pressure, but I usually have it at 33-34 psi. Engine oil and air filter was changed recently.
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