370Z highway mileage?

brucelidat · 11-25-2014, 12:16 PM

before 4.08 gears
I got about 21-22 combined
long highway drive, about 26-27

exedy699 · 11-25-2014, 12:53 PM

I don't understand how you're all seeing such good numbers. I average 18 on my daily commute, and get no more than 22, 23 on highway. And it's not like I'm always driving like I stole it

kenchan · 11-25-2014, 02:53 PM

Quote:

Originally Posted by exedy699

I don't understand how you're all seeing such good numbers. I average 18 on my daily commute, and get no more than 22, 23 on highway. And it's not like I'm always driving like I stole it

my G only does about 15mpg on congested surface road commute so that's not too far off.

RedShifter · 11-25-2014, 04:45 PM

I don't have any mods. Car has about 3,700 miles

Jordo! · 11-26-2014, 10:07 PM

Quote:

Originally Posted by RedShifter

I don't have any mods. Car has about 3,700 miles

Hmm.

I say, fill up, use tripometer to calculate MPG on next fill up and take it from there.

You could have a failing O2 heater circuit and not get a CEL. A small break in the wire from a rock that flew up into the undercarriage can do it.

After that, all I can think of is over oiled filters if you have them, meaning you need to clean the MAF's or something really weird like a clogged cat.

Try confirming the MPG first and then we can go from there.

Any fluttering or low idle?

McLovin2010 · 12-19-2014, 01:15 AM

i as well want to test this out, I did a little 30 min highway trips from gf house and reset the trip and set cruise control it got up into 29.3mpg. car is brand new less than a thousand miles on it, stillen gen 3 intakes already installed. ill post my mileage this Monday when I do my 560 mile trip to home.

njobe89 · 12-19-2014, 06:12 AM

Quote:

Originally Posted by McLovin2010

i as well want to test this out, I did a little 30 min highway trips from gf house and reset the trip and set cruise control it got up into 29.3mpg. car is brand new less than a thousand miles on it, stillen gen 3 intakes already installed. ill post my mileage this Monday when I do my 560 mile trip to home.

that trip mpg thing can be off... the sure way to test it is to fill up your tank. drive for how long you need to then fill up again and see how much gas you fill up with and see how many miles you drove and divide the mileage by the gallons you filled up with and you'll get your true mpg.

11-25-2014, 12:16 PM	#1 (permalink)
brucelidat A True Z Fanatic Join Date: Jun 2011 Location: temple city, ca Posts: 2,432 Drives: 2011 370z 7AT GM Sp Rep Power: 33	before 4.08 gears I got about 21-22 combined long highway drive, about 26-27 __________________ Works Emotion CR Ultimate - FI CBE w/ 18" resonators - Ecutek - eibach sways - Quaife - FI LTH w/race cats - kw v3 - spl - Topgunz SC - 488whp 398trq

11-25-2014, 12:53 PM	#2 (permalink)
exedy699 Base Member Join Date: Sep 2011 Location: KC Posts: 118 Drives: you crazy Rep Power: 15	I don't understand how you're all seeing such good numbers. I average 18 on my daily commute, and get no more than 22, 23 on highway. And it's not like I'm always driving like I stole it __________________ 2013 Pearl White Nismo #139

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11-25-2014, 04:45 PM	#4 (permalink)
RedShifter Base Member Join Date: Jul 2014 Location: United States Posts: 32 Drives: 2014 Rep Power: 12	I don't have any mods. Car has about 3,700 miles

12-19-2014, 01:15 AM	#6 (permalink)
McLovin2010 Base Member Join Date: Aug 2014 Location: Yorktown, VA Posts: 68 Drives: 15 370z white manual Rep Power: 41	i as well want to test this out, I did a little 30 min highway trips from gf house and reset the trip and set cruise control it got up into 29.3mpg. car is brand new less than a thousand miles on it, stillen gen 3 intakes already installed. ill post my mileage this Monday when I do my 560 mile trip to home.