What kind of gas milege should g-35 sedan w/auto trans get on the highway?

 

The best I ever got was around 24 mpg.

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Hyper-grounding kit,
350Z intake duct, Stillen Hi-Flow Airbox
Underbody rear diffusers, Drilled aluminum pedals

 

24 - 26 with no BMWs, Mustangs, Subbies, Acura's, Toyotas, Hondas, or wanna be lexus' around.

~ or 13 - 16 with a lead foot and some mods that growl.



-T

'03 Sedan 5a: BS/G, Prem, Aero/Body, Sport, Nav
Click for MODS or Vote at Online Showoff

 

i avg. 19.7 mostly city driving. on the highway, i've gotten up to 26.

2003 G35 Sedan 5AT
{Z-Tube} {JWT_POP_Chrgr.} {V1} {21%_Tint} {Matte_Race_Pdls} {Blck_w/Grpht_Lthr} {Prm_Pkg.} {Sprt_Tuned} {Wntr-Sprt} {Nav.} {Xenon} {Sunroof} {Aero-Body_Kit_w/Spoiler} {Trunk_Mat}

 

The best I ever got 99% highway was 21 from Portland to Seattle to get service and back. Average speeds were 65-80. In mostly city driving, I probably averaged 14-15.

 

i dunno about you guys, but i have navigation. what this allows me to do is view my gas consumption in real time. so when i am driving on the highway or local roads and i am just cruising, i lift off the gas pedal just enough to give me at least 25/mpg.

it helps a lot because you just don't realize how much gas is being consumed with the slightest touch of the pedal.

2003 G35 Sedan 5AT
{Z-Tube} {JWT_POP_Chrgr.} {V1} {21%_Tint} {Matte_Race_Pdls} {Blck_w/Grpht_Lthr} {Prm_Pkg.} {Sprt_Tuned} {Wntr-Sprt} {Nav.} {Xenon} {Sunroof} {Aero-Body_Kit_w/Spoiler} {Trunk_Mat}

 

wow u guys are getting some good mileages....i average at around 15 thats including highway driving...too??

 

I don't do much highway driving, but I recently had to travel from one side of town to the other and got 150 miles on the last 1/4 of gas. It was right on the last 1/4 marker and I drove it until the needle was just below the empty line. That comes out to 30 mpg if you assume 5 gallons for the last 1/4 marker.

 

one more point i noticed...the g35 seems to be calculating the gas mileage on my car according to a 18 gallon tank. the 2 gallons might be "safety" gallons. whenever i fill up, it shows 360 miles remaining when i avg. 20mpg. so, maybe you guys are actually getting better mileage than stated.

2003 G35 Sedan 5AT
{Z-Tube} {JWT_POP_Chrgr.} {V1} {21%_Tint} {Matte_Race_Pdls} {Blck_w/Grpht_Lthr} {Prm_Pkg.} {Sprt_Tuned} {Wntr-Sprt} {Nav.} {Xenon} {Sunroof} {Aero-Body_Kit_w/Spoiler} {Trunk_Mat}

 

I'm a little upset with my mileage. I have a Coupe w/auto 5-speed.

I've only had the car a couple of weeks, but I'm driving very conservatively and getting 20 mpg. The specs on Infiniti's website say the car should do 18/26. I do a lot of highway driving and I'm at 20??

I had a BMW 325i prior the the G35. That car was rated 20/29, and I was getting 26mpg all the time.

I expected to lose some mpg with the Infiniti, but had hoped to keep the actual close to 23-24mpg. Maybe that's not realistic.
Maybe the mileage will improve slightly after the engine wears a little?
Thoughts?

 

Yes everyone have similar experience if they have a 5AT.

I typically get 15-16mpg city and 21mpg hwy only.

I think 18/26mpg applies for the 6MT only.


2003 G35 Black Sedan

 

No, Infiniti lists mileage for the 5-speed at 18/26, and the 6-speed at 20/27.
It just seems that they were optimistic at best, if not downright misleading.
I may be speaking too soon. I'll give the car a few thousand miles and an oil change before it bugs me, but still. . .the BMW 3-series numbers seemed much closer to the truth.

 

most was 25...least was 17..average 18

 

Mine has 23k and still quite low mpg my friend has the same exact car even the color is same (if that makes a difference) with 3k and still similar mpg of 16/21.

You should not expect it to go any higher if you already have over 2k miles


2003 G35 Black Sedan

 

I drove from Houston to Pflugerville (just north of Austin)
today and then back. I bought mbarrad's HKS rear section
exhaust. I logged 23.7 mpg for over 400 miles. Thats
pretty good for me!

2003 Twilight Blue 5AT Sedan, sunroof,
Graphite Leather, splashguards,
12 wire Grounding kit, 350Z duct, Stillen CAI
Underbody rear diffusers, Drilled aluminum pedals
HKS rear section exhaust