Poor fuel efficiency?

Mt Tam I am · 08-11-2012, 11:24 AM

Quote:

Originally Posted by 2012-370Z

Hello All,

I recently purchased a 2012 370 w/touring, sport package and manual transmission. Prior to the Z I had a 2010 Maxima. I purchased the Z with the expectation of getting around 20mpg. The sticker lists 18-26mpg, the sticker on my Maxima listed 19-26mpg which resulted in 22.5mpg for the same basic driving routine as I do in the Z....so my natural assumption was about 20mpg for the Z. Nope, I'm getting 17.4mpg after the first 1K miles. I'm driving it easy through the suggested break in period of 1,200 miles, using only 92-93 octaine fuel, mostly shifting between 2k-3k rpm. Any thoughts of what's causing such poor fuel efficiency? Are you experiencing this too? Other than this I love the Z but if I would have known this up front I might have reconsidered the purchase. Pretty sure I can get V8 muscle at 17.4mpg. Thoughts?

I too once got 17.4 during break in. I have never seen that high mileage again driving the same roads since. If you want good gas mileage, I think you should have reconsidered the purchase. But you will have a good time.

Compdoc777 · 08-11-2012, 11:50 AM

It's the fuel as well using ethanol you won't see as good of gas mileage with it and during the summer the hotter temps you will use more gas.

Same mileage I get driving nicely as well and I have a 60 mile round trip.

DJ-of-E · 08-12-2012, 10:43 AM

Quote:

Originally Posted by Mt Tam I am

I too once got 17.4 during break in. I have never seen that high mileage again driving the same roads since. If you want good gas mileage, I think you should have reconsidered the purchase. But you will have a good time.

Jeff's BR-Z is netting him over 30mpg, but I think he's like 60% hwy.

My Z is netting me 18-19mpg because I drive 85% city.

If it makes you feel any better, my co-worker's 5.0 Mustang is netting him around 16MPG for 65/35 city/hwy.

Mt Tam I am · 08-14-2012, 01:42 PM

Quote:

Originally Posted by DJ-of-E

Jeff's BR-Z is netting him over 30mpg, but I think he's like 60% hwy.

My Z is netting me 18-19mpg because I drive 85% city.

If it makes you feel any better, my co-worker's 5.0 Mustang is netting him around 16MPG for 65/35 city/hwy.

I normally get around 12 MPG all city, hills, etc., and that means I enjoyed the fuel. Pay to play.

I just got 15 MPG and I am unhappy since this reflects driving slowly, being stuck behind tourists.

That is why 8 MPG at the track is so much fun.

onzedge · 12-23-2014, 07:42 AM

Quote:

Originally Posted by Mt Tam I am

I too once got 17.4 during break in. I have never seen that high mileage again driving the same roads since. If you want good gas mileage, I think you should have reconsidered the purchase. But you will have a good time.

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08-11-2012, 11:50 AM	#2 (permalink)
Compdoc777 Enthusiast Member Join Date: Dec 2011 Location: Cypress Posts: 277 Drives: 2011 Nismo #4 MB Rep Power: 15	It's the fuel as well using ethanol you won't see as good of gas mileage with it and during the summer the hotter temps you will use more gas. Same mileage I get driving nicely as well and I have a 60 mile round trip.