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Infiniti G35 Real World MPG

392 messages,  Last post on Dec 02, 2009 at 10:55 AM

You are in the Infiniti G35 Forum. Your Hosts are pat & karens

What is this discussion about? Infiniti G35, Fuel Efficiency (MPG)


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#11 of 392
NJ Commute by akotiga
Jun 28, 2005 (3:12 pm)
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20 mile commute takes me about 35 minutes.
My 2005 G35x has been averaging 19.5 mpg to 21 mpg.
#12 of 392
Country roads get me about 26 MPG by woojac
Jul 01, 2005 (4:47 pm)
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Have a 2004 6MT sedan. I must have the perfect conditions for mileage. About 50 miles per day round trip to work on country roads with 45 and 55 speed limits. Not many stop signs or lights. Even while having some fun I get about 27 in the summer (with A/C) and down to about 24 in the winter (Virginia winter that is). Love this car!
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#13 of 392
Mix Hwy-Local by rsandersva
Jul 02, 2005 (5:01 pm)
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05 G35X purchased in Dec, 8500 miles, have keep MPG records since I purchased the car. Overall, just over 20 mpg on mixed highway and local roads (no. VA), but commute puts me in DC beltway traffic. 30 mile one-way commute can take 30 minutes in the AM and 50 minutes in the PM. The 20 mpg includes a lot of traffic time and if you know the DC weather, a lot of AC time. Also, using regular. Worst gas mileage was with a tank of premium.
#14 of 392
05 6MT 21.4 mpg by runningonmt
Jul 09, 2005 (6:22 am)
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With just over 3K on the odometer I've been getting a consistent 21.4 mpg in a mix of highway and city/suburban driving. By observing the instantaneous mpg readout on the nav system display I know I could do quite a bit better if I could just keep my foot out of it, but driving this car in a way that exploits its power and handling prowess is way too much fun for me to behave any better than I do.
#15 of 392
Re: 05 6MT 21.4 mpg [runningonmt] by frisconick
Jul 09, 2005 (12:20 pm)
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Replying to: runningonmt (Jul 09, 2005 6:22 am)

Why buy a car with all that hp and not use it.
#16 of 392
Premium necessary? by larryallen707
Jul 11, 2005 (8:38 pm)
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Replying to: frisconick (Jul 09, 2005 12:20 pm)

I see it touched on above but are you guys using regular ore premium? Besides gas milage what about knocking when using regular unleaded? I just bought the car so haven't filled it yet.
#17 of 392
Re: Premium necessary? [larryallen707] by frisconick
Jul 12, 2005 (5:13 am)
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Replying to: larryallen707 (Jul 11, 2005 8:38 pm)

Use the gas the owner's manual recommends.
#18 of 392
Re: Premium necessary? [frisconick] by larryallen707
Jul 12, 2005 (6:12 am)
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Replying to: frisconick (Jul 12, 2005 5:13 am)

Thanks Nick for that insightful help. This is a forum for discussion. I haven't read the owner's manual so I don't know what it says but that's not the point... what have people used in the real world? If the answer was always what the owner's manual says we wouldn't have forums like this. I know I have had cars where the type of gas really does change performance so thought I would ask what others have found. Have you bought the car yet or still thinking?
#19 of 392
Re: Premium necessary? [larryallen707] by teamboulton
Jul 12, 2005 (6:52 am)
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Replying to: larryallen707 (Jul 12, 2005 6:12 am)

I agree, I know what the owners manual says, but I'd like to know what everyone else does in real life. Personally, I generally use 89 octane, but run a tank of premium (93 octane) every once in awhile.
#20 of 392
Re: Premium necessary? [teamboulton] by frisconick
Jul 12, 2005 (7:57 am)
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Replying to: teamboulton (Jul 12, 2005 6:52 am)

I didn't mean to be flippant about the owners manual suggestion, but what I have been told is that a computer will get messed up if you don't use the suggested octane. I am no mechanic, but why spend 30k+ on a car, and then get cheap with the gas?

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