MPG question

sonic370 · 01-19-2011, 08:17 PM

Just took a round trip cruise of about 400 miles it was a blast!!
So anyway computer said i averaged 26 mpg. set the cruise at about 70.

just wondering if the trip read outs are pretty accurate on these cars
that seemed pretty good to me

mjd77 · 01-19-2011, 08:23 PM

Quote:

Originally Posted by sonic370

Just took a round trip cruise of about 400 miles it was a blast!!
So anyway computer said i averaged 26 mpg. set the cruise at about 70.

just wondering if the trip read outs are pretty accurate on these cars
that seemed pretty good to me

I personally don't trust those to be very accurate. Your best option is to set the trip meter to 0 when you fill up...then when you fill up next time divide the number of miles on the trip meter by the number of gallons you put in. That's about as accurate as you will get. I think if you're doing an almost all highway trip you may be able to squeeze out 28-29 if your lucky.

hdskull · 01-19-2011, 08:25 PM

It's always been pretty accurate for me. At most it's been .1 off. I always reset my trip meter when I fill up, then divide the number of miles by the number of gallons I fill up. When I set cruise control at 7xmph, I get about 27-28 mpg.

m4a1mustang · 01-19-2011, 08:26 PM

Calculate by hand and check.

ChrisSlicks · 01-19-2011, 08:30 PM

Quote:

Originally Posted by sonic370

Just took a round trip cruise of about 400 miles it was a blast!!
So anyway computer said i averaged 26 mpg. set the cruise at about 70.

just wondering if the trip read outs are pretty accurate on these cars
that seemed pretty good to me

When I compared it via the fill up method it was fairly close, the car read just a little high, 0.5 mpg or so.

sonic370 · 01-19-2011, 08:36 PM

thanks for the info,I'll try that on my next fill up

chops · 01-19-2011, 08:42 PM

its been fairly accurate for the first few tanks that i calculated. since then ive just taken it for what it is. i dont care for the MPG to be honest...ive found that even if i smash on it and get 18mpg combined, driving like a grandpa and getting 20-22mpg combined is a difference of a few bucks and NO FUN!

christian370z · 01-19-2011, 08:49 PM

I did try hypermiling my Z staying around 60 mph and was seeing 34mpg on a normal section of highway but most of the time, I get around 21mpg with mixed city and highway driving and seems pretty accurate.

plato · 01-19-2011, 08:51 PM

In a mixture of mostly highway with some street driving around LA county, I average 20 mpg. I got a lead foot too...

ImportConvert · 01-19-2011, 09:26 PM

I would have thought the Z would have gotten better mileage given the small engine and low CD.

370Z JT · 01-19-2011, 09:33 PM

I get 15MPG. All city driving with a non aggressive driving style. Is something wrong with my car? Only mod is a catback.

Jamaica · 01-19-2011, 09:37 PM

i do both city and street driving. Average about 19.5

whoady4shoady · 01-19-2011, 10:03 PM

Jesus you guys get awful mileage. When do you guys Shift? I shift at or below 2000 RPMs for most of my daily driving.

Jamaica · 01-19-2011, 10:04 PM

Quote:

Originally Posted by whoady4shoady

Jesus you guys get awful mileage. When do you guys Shift? I shift at or below 2000 RPMs for most of my daily driving.

if you live in cali then youll understand

whoady4shoady · 01-19-2011, 10:06 PM

Quote:

Originally Posted by jamaica951

if you live in cali then youll understand

Got ya. I rarely drop under 25 unless I am trying too or am doing some serious city driving. Even then I can stay at 22/23 in the city.

01-19-2011, 08:17 PM	#1 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 18	MPG question Just took a round trip cruise of about 400 miles it was a blast!! So anyway computer said i averaged 26 mpg. set the cruise at about 70. just wondering if the trip read outs are pretty accurate on these cars that seemed pretty good to me

01-19-2011, 08:26 PM	#4 (permalink)
m4a1mustang A True Z Fanatic Join Date: Feb 2009 Location: Northern VA Posts: 55,385 Drives: on two wheels Rep Power: 6962	Calculate by hand and check. __________________ - Steve Zs & Coffee - Saturdays at 10AM in Fairfax, VA and Columbia, MD (Click the banner!) LIKE us on Facebook!

01-19-2011, 08:49 PM	#8 (permalink)
christian370z A True Z Fanatic Join Date: Jul 2010 Location: Newport Beach Posts: 3,900 Drives: 2010 370Z/Saab 900se Rep Power: 432	I did try hypermiling my Z staying around 60 mph and was seeing 34mpg on a normal section of highway but most of the time, I get around 21mpg with mixed city and highway driving and seems pretty accurate. __________________ -320whp / 259wftlbs- SP Rays -- RE-11s -- SpecialtyZ Tune -- Swift Springs -- Stillen 25R Oil Cooler -- Stillen G3 Intakes -- Berk HFCs -- F.I. 12" CBE -- Stillen Sway Bars -- Es14 Spring -- INGS+1 lip -- CF Spoiler -- GTR Start Button -- VLED Parking Lights -- PWJDM V2 shift knob

01-19-2011, 09:33 PM	#11 (permalink)
370Z JT A True Z Fanatic Join Date: Jan 2010 Location: United States Posts: 2,905 Drives: 370Z PW 7AT Rep Power: 378	I get 15MPG. All city driving with a non aggressive driving style. Is something wrong with my car? Only mod is a catback. __________________ Click for My Journal Top Secret \| EVO-R \| Fujimura Auto \| Shine Auto \| Seibon \| MRWorks \| Swift \| SPC \| SSR \| UpRev \| Project Kics \| NST \| Titek \| Eibach \| Nismo \| Whiteline \| Quaife \| Invidia \| Fly1 \| CF Element \| Carbon Signal

01-19-2011, 08:25 PM	#3 (permalink)
hdskull Track Member Join Date: Jun 2009 Location: San Diego Posts: 680 Drives: '10 Black 370Z 6MT Rep Power: 17	It's always been pretty accurate for me. At most it's been .1 off. I always reset my trip meter when I fill up, then divide the number of miles by the number of gallons I fill up. When I set cruise control at 7xmph, I get about 27-28 mpg.

01-19-2011, 08:36 PM	#6 (permalink)
sonic370 A True Z Fanatic Join Date: May 2010 Location: Orange Texas Posts: 1,574 Drives: 09 370Z Sports PGK Rep Power: 18	thanks for the info,I'll try that on my next fill up

01-19-2011, 08:42 PM	#7 (permalink)
chops A True Z Fanatic Join Date: Oct 2010 Location: NA Posts: 1,732 Drives: NA Rep Power: 22	its been fairly accurate for the first few tanks that i calculated. since then ive just taken it for what it is. i dont care for the MPG to be honest...ive found that even if i smash on it and get 18mpg combined, driving like a grandpa and getting 20-22mpg combined is a difference of a few bucks and NO FUN!

01-19-2011, 08:51 PM	#9 (permalink)
plato Base Member Join Date: Nov 2010 Location: Los Angeles, CA Posts: 88 Drives: 2010 370Z 7AT Rep Power: 15	In a mixture of mostly highway with some street driving around LA county, I average 20 mpg. I got a lead foot too...

01-19-2011, 09:26 PM	#10 (permalink)
ImportConvert A True Z Fanatic Join Date: Jun 2010 Location: SWMO Posts: 4,454 Drives: 2019 CX5 GT Reserve Rep Power: 7627	I would have thought the Z would have gotten better mileage given the small engine and low CD.

01-19-2011, 09:37 PM	#12 (permalink)
Jamaica A True Z Fanatic Join Date: Mar 2010 Location: SoCal Posts: 15,362 Drives: Under boost Rep Power: 73	i do both city and street driving. Average about 19.5

01-19-2011, 10:03 PM	#13 (permalink)
whoady4shoady A True Z Fanatic Join Date: Jul 2009 Location: New Orleans Posts: 1,088 Drives: 09 Silver Nismo Rep Power: 18	Jesus you guys get awful mileage. When do you guys Shift? I shift at or below 2000 RPMs for most of my daily driving.