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Infiniti M35/M45 Real World MPG

91 messages,  Last post on Nov 27, 2009 at 4:41 AM

You are in the Infiniti M35/M45 Forum. Your Hosts are pat & karens

What is this discussion about? Infiniti M35, Infiniti M45, Fuel System, Sedan


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#47 of 91
Re: M35/M45 Gas Mileage [james27] by sfcharlie
Aug 15, 2006 (9:05 pm)
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Replying to: james27 (Aug 15, 2006 6:26 pm)

"What's your tire pressure?"
 
I keep a tire inflator in the trunk. I monitor the tire pressure every day on screen. I keep the cold pressure between 34 and 36. Do you think I should keep the cold tire pressure higher?
#48 of 91
Re: M35/M45 Gas Mileage [sfcharlie] by james27
Aug 16, 2006 (4:50 pm)
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Replying to: sfcharlie (Aug 15, 2006 9:05 pm)

That should be okay...are you at high altitude? That can make a difference in your performance and mileage. I guess I may be the exception...I usually get better mileage than average.
#49 of 91
Re: M35/M45 Gas Mileage [james27] by sfcharlie
Aug 17, 2006 (6:12 am)
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Replying to: james27 (Aug 16, 2006 4:50 pm)

I think you might be an exception.
 
Here's a recent post from another Edmunds forum on real world sedan mileage ...
 
"I am looking for any suggestions--I have a two year old G35x and have finally had it with the horrible milage I am getting. I do primarily suburban short hops of one to three miles with a small amount of highway driving when I can. I do not drive aggressively. I am getting around 13-15 MPG."
 
I find a consistent pattern of talk/complaint about Infiniti V6 mpg across the internet. For example, quickly check the consumer ratings link at the top of this forum page.
#50 of 91
Re: M35/M45 Gas Mileage [sfcharlie] by blov8r
Aug 17, 2006 (6:21 am)
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Replying to: sfcharlie (Aug 17, 2006 6:12 am)

Charlie .... You're car's powered w/ the same V6 as my M35, and my driving habits are very much like yours. I've NEVER gotten less than 16.4 mpg and that's with the summer blend here in AZ. If you're in San Fran and dealing with those hills your mileage comes as no real surprise. If you're driving on flatland, then something's amiss IMO. Bart
#51 of 91
Re: M35/M45 Gas Mileage [blov8r] by sfcharlie
Aug 17, 2006 (8:02 am)
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Replying to: blov8r (Aug 17, 2006 6:21 am)

Bart,
 
That's likely ... the hills, I mean. You understand, I wasn't saying I've ever gotten below 16 mpg. That quote was from another post. But, you sound OK with a V-6 using 16-17 mpg than I am. It's subjective, individual variance at that point. I'd not complain about a V8 using 17 mpg, even in combined city/highway, but I'm sure the next generation V6 from Nissan will address this.
 
Anyway, the mpg issue is probably getting some negative emotional overflow from my not liking the M35 as much as I thought I would -- aesthetically, mostly, but some of its driving characteristics as well ... not anything that would lead me to tell someone who likes the car "Don't; you'll regret it" but that has led me to explore pathways (I think I've found one I can live with) out of my lease and into another car, I hope, soon. I don't like feeling this way about my car, especially when, objectively, it's a good car.
#52 of 91
2007 M45 16.8 - 17.2 1mo. combo hwy/city eom by seihugh
Aug 17, 2006 (8:04 pm)
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#53 of 91
Good Highway Mileage by mwg
Aug 24, 2006 (7:25 pm)
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Recently took my first highway trip with my M35X. Set the comnputer when I got on the highway and read it when I got off. So it was all pure highway mileage. To my suprise I got 27 MPG.Use top grade gas and have driven the car only 1700 miles. Suprised because our normal driving is 1 and 2 mile trips to supermarket,barber,friends, etc. during which we get mileage as low as 10-12MPG.
 
EmGee
#54 of 91
Re: Good Highway Mileage by ribbonking
Aug 26, 2006 (7:05 pm)
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Replying to: mwg (Aug 24, 2006 7:25 pm)

Drove from LA to Las Vegas last week. MPG was 24.5 driving at 75 - 80 MPH on cruise control.
#55 of 91
Re: M45 MPG [purplem46] by blov8r
Sep 22, 2006 (11:02 am)
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Replying to: purplem46 (Jun 21, 2006 5:43 am)

My last car was a Caddy DeVille ... 28 mpg on the hiway 75 mph. Can't touch that w/ my M. Doesn't matter ... just a comment. Bart
#56 of 91
Re: M45 MPG [blov8r] by cdnpinhead
Sep 22, 2006 (12:39 pm)
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Replying to: blov8r (Sep 22, 2006 11:02 am)

It's mostly about RPM at cruising speed.
 
That and ULEV.

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