370z MPG VS V8

Munts · 07-21-2014, 09:48 AM

I have been doing some searching on this forum on people's average MPG's, and it seems like the usual is anywhere between 21-24. This just seems strange because I see pictures/forums of people in cars like the V8 ford mustang's who can average up to 25 MPG on the freeway, and it has a bigger engine than the Z.

This just doesn't seem to make much sense. Does anyone have an explanation for this?

kenchan · 07-21-2014, 10:02 AM

does the cylinders shut down on the stang's v8 like on the vettes?

maybe that's how they're doing it? not sure.
i never really cared about mpg on my Z.

mcphelps · 07-21-2014, 10:10 AM

Why are you comparing average MPG of the 370z to the Highway MPG of the Mustang? Compare highway to highway. EPA MPG of 370Z is 19-26, 22 combined. Mustang V8 is 18-25, 20 combined. So it really doesn't get better mileage.

Munts · 07-21-2014, 10:18 AM

Quote:

Originally Posted by mcphelps

Why are you comparing average MPG of the 370z to the Highway MPG of the Mustang? Compare highway to highway. EPA MPG of 370Z is 19-26, 22 combined. Mustang V8 is 18-25, 20 combined. So it really doesn't get better mileage.

I was just saying that it seems like most people average 24 ish on the HWY in their Z and some people with V8's get almost the same if not better.

Just an interesting observation I thought

FPenvy · 07-21-2014, 10:13 AM

i drive mine hard and also in a bit of traffic daily. plus drag strip runs here and there and my avg. MPG is 19. that is amazing for the way i drive and also the fact that i am not on the highway that often.

DIGItonium · 07-21-2014, 10:20 AM

There are several factors such as drag, power to weight ratio, gearing, etc. With the V8, I'm assuming such cars benefit with taller gearing. Our cars have shorter gearing for faster acceleration, but it sacrifices a bit of mileage. I'm only speaking off the top of my head so don't quote me lol.

Anyhow, I'm pushing at least 450 whp and my average combined MPG is around 22.

Fizzer · 07-21-2014, 10:46 AM

Quote:

Originally Posted by DIGItonium

There are several factors such as drag, power to weight ratio, gearing, etc. With the V8, I'm assuming such cars benefit with taller gearing.

Oh yeah.

Our car: ~2400rpm 6th gear @65mph
Stang GT500: ~1300rpm 6th gear @65mph
Vette: ~1400rpm 6th gear @65mph

My pop's C6 can get dang near 30mpg at a steady 65mph cruise (not that any of these cars are usually cruised at 65).

I think the 370 could use a taller 6th, it certainly has the torque.

Magic Bus · 07-21-2014, 03:54 PM

Quote:

Originally Posted by Fizzer

Oh yeah.

Our car: ~2400rpm 6th gear @65mph
Stang GT500: ~1300rpm 6th gear @65mph
Vette: ~1400rpm 6th gear @65mph

My pop's C6 can get dang near 30mpg at a steady 65mph cruise (not that any of these cars are usually cruised at 65).

I think the 370 could use a taller 6th, it certainly has the torque.

Good post. Personally, I prefer the shorter gearing for the Z as it's a mountain/twisties kind of car more so vs the other two. So giving up a few mpg's on the highway has never been a concern for me.

Wait a minute, I live on a frickin island.....what's a highway??

Munts · 07-21-2014, 05:42 PM

The point of this thread wasn't to worry about MPG..

I had an 04' S4 that only got around 16 MPG combined, and I loved every second of it.

I was just making an interesting observation how certain V8 cars manage to get the same if not better MPG than the Z. Simple as that.

onzedge · 07-21-2014, 05:45 PM

Quote:

Originally Posted by Munts

The point of this thread wasn't to worry about MPG..

I had an 04' S4 that only got around 16 MPG combined, and I loved every second of it.

I was just making an interesting observation how certain V8 cars manage to get the same if not better MPG than the Z. Simple as that.

I think you don't know us very well if you did not fully expect this thread to wander off into the hinterlands of non-sequitors and random observations.

You'll learn over time.

Minsu · 07-21-2014, 10:21 AM

Lies i get 14.1mpg.

FPenvy · 07-21-2014, 10:24 AM

Quote:

Originally Posted by Minsu

Lies i get 14.1mpg.

solution: driver mod

Mt Tam I am · 07-21-2014, 10:27 AM

The modern V8 takes the MPG test well. I wonder if I could drive to get this type of result? Nope. Never.

Cell · 07-21-2014, 09:23 PM

Quote:

Originally Posted by Minsu

Lies i get 14.1mpg.

I get 10...

Minsu · 07-23-2014, 01:32 PM

Quote:

Originally Posted by Cell

I get 10...

Ur foot heavier than mine? Whip it out brah, whip it out

07-21-2014, 09:48 AM	#1 (permalink)
Munts Base Member Join Date: May 2014 Location: St Paul, Minnesota Posts: 101 Drives: 2009 MT Touring Rep Power: 11	370z MPG VS V8 I have been doing some searching on this forum on people's average MPG's, and it seems like the usual is anywhere between 21-24. This just seems strange because I see pictures/forums of people in cars like the V8 ford mustang's who can average up to 25 MPG on the freeway, and it has a bigger engine than the Z. This just doesn't seem to make much sense. Does anyone have an explanation for this?

07-21-2014, 10:02 AM	#2 (permalink)
kenchan A True Z Fanatic Join Date: Aug 2009 Location: N/A Posts: 76,801 Drives: N/A Rep Power: 141521	does the cylinders shut down on the stang's v8 like on the vettes? maybe that's how they're doing it? not sure. i never really cared about mpg on my Z. 1st likes this.

07-21-2014, 10:10 AM	#3 (permalink)
mcphelps Base Member Join Date: Mar 2009 Location: Tucson, AZ Age: 66 Posts: 113 Drives: 09 Sprt/Tr/Nav PG M6 Rep Power: 17	Why are you comparing average MPG of the 370z to the Highway MPG of the Mustang? Compare highway to highway. EPA MPG of 370Z is 19-26, 22 combined. Mustang V8 is 18-25, 20 combined. So it really doesn't get better mileage. DEpointfive0, 1st and Zteve like this.

07-21-2014, 10:20 AM	#6 (permalink)
DIGItonium A True Z Fanatic Join Date: Jan 2009 Location: Kansas Posts: 3,800 Drives: 09 Z34-TT 6MT Rep Power: 43	There are several factors such as drag, power to weight ratio, gearing, etc. With the V8, I'm assuming such cars benefit with taller gearing. Our cars have shorter gearing for faster acceleration, but it sacrifices a bit of mileage. I'm only speaking off the top of my head so don't quote me lol. Anyhow, I'm pushing at least 450 whp and my average combined MPG is around 22. __________________

07-21-2014, 10:21 AM	#11 (permalink)
Minsu A True Z Fanatic Join Date: Jul 2012 Location: New Jersey Posts: 1,401 Drives: 2013 MidBlue 370Z 6M Rep Power: 24	Lies i get 14.1mpg. __________________ I figured, Get High, Take the Test High, Get HIGH Scoes

07-21-2014, 05:42 PM	#9 (permalink)
Munts Base Member Join Date: May 2014 Location: St Paul, Minnesota Posts: 101 Drives: 2009 MT Touring Rep Power: 11	The point of this thread wasn't to worry about MPG.. I had an 04' S4 that only got around 16 MPG combined, and I loved every second of it. I was just making an interesting observation how certain V8 cars manage to get the same if not better MPG than the Z. Simple as that.

07-21-2014, 10:27 AM	#13 (permalink)
Mt Tam I am A True Z Fanatic Join Date: Jun 2010 Location: California Posts: 10,709 Drives: 370Z T/S/N 6MT & XKE Rep Power: 3843	The modern V8 takes the MPG test well. I wonder if I could drive to get this type of result? Nope. Never. __________________ "Does the carpet match the drapes? NO!!! I don't date bald women." Nissan Motorsports 34R Oil Cooler. Stillen CBE. Hotchkis Sport Sway Bars. KW Variant 3 Coilover System. Stillen Gen3 CAI. Michelin Pilot Super Sport. Stillen Brake Ducts. Carbotech™ XP10/XP8 Pads. Z1 Front Rotors. Z1 Stainless Brake Lines. Two degrees of camber