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Sedans Infiniti M35/M45 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
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I've driven close to 19K miles on my M35 and have average 18.90 MPG - actually calculated this myself. According to the trip computer I average 27 mph during my driving - I estimated 50% highway/50% around town. My gas gauge isn't very accurate but I know I go between 300 and 350 miles between fill-ups.
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Replying to: drtravel (Aug 10, 2006 1:18 pm)
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Replying to: arwilli (Aug 12, 2006 7:12 am)
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Replying to: james27 (Aug 12, 2006 12:25 pm) Among the worst figures for a 275 HP V-6.
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Replying to: sfcharlie (Aug 12, 2006 1:36 pm)
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Replying to: james27 (Aug 12, 2006 4:31 pm) Every single auto mag article comes in at 17 in mixed use. High percentage of people on this site say the same. Or read Edmunds consumer-reviews pros-and-cons for this car -- major "con" is poor mpg. It's not an illusion. I don't want driving my car to be an olympic consciousness raising event in order to approach 20 mpg with a V-6 engine in mostly straight 60-65 mph driving. Nonetheless, I have been so bothered by the mileage that (in addition to using premium) I don't rush around like an adolescent with his first car or even a person enthusiastic about driving. Smooth has become a religion. The car ain't converting, however. |
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I am currently looking to buy/lease one of these. I have two questions; don't cars give better mileage after being driven a few thousand miles (my Accord did after about 10,000 miles), and, does anyone have the numbers for the M45? Thanks.
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Replying to: acerfan (Aug 15, 2006 2:14 am) "Test M35 averaged 16.4 mpg in city/highway driving, test M35x averaged 17.4 with more highway use. Test M45s averaged 16.0 in city/highway driving, 18.8-19.1 mpg in mostly highway use." Since I buy my cars new, I am comparing my first 3K miles with my M35 to similar experiences with other cars. I do expect the mpg to improve over time ... but ... I think much evidence has accumulated (in CR's evaluation, in reports from consumers on Edmunds, on this board, in many reviews, etc) to strongly suggest that V-6 engine/transmission gets poor mileage for a V-6. It has been widely recognized that the 5 gears and the gearing setup (designed to make this 275 HP engine, with torque of 270  4800 rpm) accelerate faster than competition in auto reviews) produce unusually poor mpg. The car is so loveable in other ways and MSRP'd so much lower than competition that, I believe, people who are smitten by it have a tendency to simply not believe that it has any negative characteristics.
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Replying to: sfcharlie (Aug 15, 2006 5:42 am) I think the M45 requires premium.
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Replying to: antsinpants (Aug 15, 2006 2:51 pm) The M45 REQUIRES premium. They also state that if you MUST put in regular because premium is not available, to not fill the tank, only put in enough to get safely to where you can get premium, then fill it up so you boost the octane as much as you can. They also say to not drive aggressivly while you have the regular in there. |
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