370Z highway mileage?

brucelidat · 11-26-2014, 09:07 PM

Just did a 371mile drive and got 24.4 mpg (calculated, not computer) with 4.08 gears. Some patches of traffic, but mostly clear 80+ mph

Jordo! · 11-26-2014, 11:07 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, 02:15 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, 07:12 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.

mishuko · 12-19-2014, 07:59 AM

my mileage went down after i put the gen 3's in... like high teens-20's... to like... 15ish.

anyways... shouldn't this thread be locked now that gas is cheaper?

like almost 20 bucks cheaper for a half tank :O

njobe89 · 12-19-2014, 08:01 AM

you should be locked up cause you're $20 cheaper then last time

edub370 · 12-19-2014, 09:14 AM

am i the only one that has no idea what my z's mpg is.

BC416 · 12-19-2014, 09:22 AM

Quote:

Originally Posted by edub370

am i the only one that has no idea what my z's mpg is.

And I don't care.

edub370 · 12-19-2014, 09:38 AM

^ Because sports car.

and it's my weekend car. so idgaf what the mpg is lol

BC416 · 12-19-2014, 10:01 AM

Quote:

Originally Posted by edub370

^ Because sports car.

and it's my weekend car. so idgaf what the mpg is lol

I drive it every day and I still DGAF. Especially with gas prices dropping like they have been recently.

tonybell_57 · 12-19-2014, 10:29 AM

Back in July, I took a road trip from Suwanee, GA to Hood River, OR and back. It was a total of 7,312 miles and I averaged 24.9 mpg.

mishuko · 12-19-2014, 10:40 AM

seriously... when i drive i rev to atleast 4.5k in first and 2nd. fk it!

and when i want to have a bit of 'spirit' it's going above 6.

and then i like to hang the rpm high for a bit to listen to the music... in fact i down shift and sit in 2nd going through tunnels just because.

JARblue · 12-19-2014, 10:51 AM

Quote:

Originally Posted by tonybell_57

Back in July, I took a road trip from Suwanee, GA to Hood River, OR and back. It was a total of 7,312 miles and I averaged 24.9 mpg.

Now that's some

Nice work

njobe89 · 12-19-2014, 10:53 AM

Quote:

Originally Posted by tonybell_57

Back in July, I took a road trip from Suwanee, GA to Hood River, OR and back. It was a total of 7,312 miles and I averaged 24.9 mpg.

that's some driving right there. you should get a cdl

dP3NGU1N · 12-20-2014, 12:30 PM

With full breather mods the computer is telling me 21.8mpg average. On the highway with no traffic and on straight sections the instant read will tell me around 30mpg (there's no readout for 30, it just sits between 20 and 40 and I assume it's a linear). This is the only way I figure people are saying they're getting 30 mpg.

The 21.8mpg is from almost ALL highway driving to and from work. If I drive any extended period in local traffic I'm down to about 19-20.

Filling up at the pump has shown these readings are fairly accurate. It's been a while but I THINK when I first purchased the car I was getting higher averages, but I believe it's normal to drop a few mpg when you put on breather mods. Higher air density needs more gas to balance it out to create more power and produce a more efficient explosion.

11-26-2014, 09:07 PM	#61 (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: 31	Just did a 371mile drive and got 24.4 mpg (calculated, not computer) with 4.08 gears. Some patches of traffic, but mostly clear 80+ mph __________________ 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 Last edited by brucelidat; 12-20-2014 at 04:41 PM.

12-19-2014, 08:01 AM	#66 (permalink)
njobe89 A True Z Fanatic Join Date: May 2014 Location: Atlanta, GA Posts: 5,227 Drives: 2013 370z BS 6MT Rep Power: 174284	you should be locked up cause you're $20 cheaper then last time __________________ 2 plus 2 times 2 = ? ... hint, it's not 8 Stillen CBE, Stillen Gen 3, TP's, Uprev tuned - 324whp/264tq

12-19-2014, 09:14 AM	#67 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	am i the only one that has no idea what my z's mpg is. BC416 likes this. __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

12-19-2014, 09:38 AM	#69 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 20	^ Because sports car. and it's my weekend car. so idgaf what the mpg is lol mishuko likes this. __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

12-19-2014, 10:29 AM	#71 (permalink)
tonybell_57 Base Member Join Date: Dec 2013 Location: Suwanee, GA Posts: 119 Drives: 12 MB 370ZR T/S/7AT Rep Power: 11	Back in July, I took a road trip from Suwanee, GA to Hood River, OR and back. It was a total of 7,312 miles and I averaged 24.9 mpg. JARblue likes this. __________________ APF\|Berk\|Escort\|EVO-R\|Hotchkiss\|JPM Coachworks\|Kinetix\|SpoilerSolutions\|Stillen\|Tein\|Z 1

12-19-2014, 02:15 AM	#63 (permalink)
McLovin2010 Base Member Join Date: Aug 2014 Location: Yorktown, VA Posts: 68 Drives: 15 370z white manual Rep Power: 40	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.

12-19-2014, 07:59 AM	#65 (permalink)
mishuko A True Z Fanatic Join Date: Jul 2014 Location: bouncin on tigga Posts: 8,062 Drives: '12 Z Rep Power: 9435	my mileage went down after i put the gen 3's in... like high teens-20's... to like... 15ish. anyways... shouldn't this thread be locked now that gas is cheaper? like almost 20 bucks cheaper for a half tank :O

12-19-2014, 10:40 AM	#72 (permalink)
mishuko A True Z Fanatic Join Date: Jul 2014 Location: bouncin on tigga Posts: 8,062 Drives: '12 Z Rep Power: 9435	seriously... when i drive i rev to atleast 4.5k in first and 2nd. fk it! and when i want to have a bit of 'spirit' it's going above 6. and then i like to hang the rpm high for a bit to listen to the music... in fact i down shift and sit in 2nd going through tunnels just because.

12-20-2014, 12:30 PM	#75 (permalink)
dP3NGU1N A True Z Fanatic Join Date: Feb 2011 Location: Irvine Posts: 1,682 Drives: 13 PW sport 6mt Rep Power: 18	With full breather mods the computer is telling me 21.8mpg average. On the highway with no traffic and on straight sections the instant read will tell me around 30mpg (there's no readout for 30, it just sits between 20 and 40 and I assume it's a linear). This is the only way I figure people are saying they're getting 30 mpg. The 21.8mpg is from almost ALL highway driving to and from work. If I drive any extended period in local traffic I'm down to about 19-20. Filling up at the pump has shown these readings are fairly accurate. It's been a while but I THINK when I first purchased the car I was getting higher averages, but I believe it's normal to drop a few mpg when you put on breather mods. Higher air density needs more gas to balance it out to create more power and produce a more efficient explosion. __________________ 35% Hooper Optik \| Takeda Attack CAI \| F.I. HFC \| Hotchkis Sway Bar \| Stillen 24row \| OS Giken Super Lock LSD \| TK Shift Knob \| EVO-R Carbon Diffuser

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