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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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#28 of 91
First M35 fill-up after 1200 break-in period by sfcharlie
Jul 17, 2006 (9:06 am)
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My last tank of the break-in period, I tried regular unleaded (87 octane) and got a little over 17 mpg in mixed city-hgihway driving.
 
Just filled up with 89 octane and immediately seemed to get a jump in mpg to the 22-23 highway and 19 overall range. I'll report in after this tank is used and then next time I'll experiment with 91.
#29 of 91
Re: Decent Numbers [rlejr66] by pat HOST
Jul 17, 2006 (9:45 am)
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Replying to: rlejr66 (Jul 17, 2006 8:50 am)

If you got through Emporia with your CC set on 65 and without getting a ticket you either should have played the lottery that day or your speedometer is (like many others) showing 5+ mph too high!!
#30 of 91
Re: Decent Numbers [pat] by rlejr66
Jul 17, 2006 (11:02 am)
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Replying to: pat (Jul 17, 2006 9:45 am)

LOL! I hadn't been through there since around Thanksgiving of last year. But it appears they have changed the speed limit to 60MPH. That gave me the extra confidence to set it at 65. You sound like you know the area well . . . . . they wouldn't waste time pulling me over for a mere 5MPH over the speed limit, would they?
#31 of 91
Re: Decent Numbers [rlejr66] by pat HOST
Jul 17, 2006 (3:37 pm)
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Replying to: rlejr66 (Jul 17, 2006 11:02 am)

YES, they WOULD!!!
#32 of 91
Re: Decent Numbers [pat] by rlejr66
Jul 17, 2006 (3:51 pm)
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Replying to: pat (Jul 17, 2006 3:37 pm)

Yikes! Mental note made! Tread lightly on US58 in VA!
#33 of 91
Re: Decent Numbers [rlejr66] by pat HOST
Jul 17, 2006 (3:54 pm)
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Replying to: rlejr66 (Jul 17, 2006 3:51 pm)

Yeah, between Emporia and 85, but particularly in Emporia. Haven't ever been burned myself, but that's because I know too many people who have been.
#34 of 91
Mileage at 7.5K on M35x by james27
Jul 18, 2006 (1:33 pm)
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Overall, since I got the car, I've gotten just over 20mpg over 7.5K miles. This is mostly commute traffic (95% highway). Around here, highway runs 65-80mph. There's only one trip about 400 miles each way - essentially all on the interstate. The low was about 16 with a high about 24, most around 20. Right now, the computer is showing 20.4, and it is fairly close compared to the odometer and what it takes at the gas pump. I'd like a little more from it, but considering the relative power available from the RPM at cruise, I guess more is not forthcoming.
#35 of 91
M35 mileage by drtravel
Aug 10, 2006 (1:18 pm)
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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.
#36 of 91
Re: M35 mileage [drtravel] by arwilli
Aug 12, 2006 (7:12 am)
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Replying to: drtravel (Aug 10, 2006 1:18 pm)

I never cared about gas mileage before until the skyrocketing prices and the MPG on my M. The computer says 15 MPG for my 1,200 miles (50/50 city/highway). Cost me $64 to fill up the tank this week so I actually found myself driving my wife's Sentra to run some local errands.
#37 of 91
Re: M35 mileage [arwilli] by james27
Aug 12, 2006 (12:25 pm)
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Replying to: arwilli (Aug 12, 2006 7:12 am)

The M gets lousy around town mileage in stop and go or short trips. Yesterday, I filled up and then got right on the interstate...it read 22.8mpg when I pulled into the garage. There was a short wait at the entrance and exits. This was at around 70-75 mph.

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