Last post on Apr 02, 2012 at 3:58 AM
You are in the Nissan Murano
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Nissan Murano, Fuel Efficiency (MPG), SUV
#141 of 150 how to fix your MPG problems
Aug 03, 2009 (2:22 pm)
the reason some owners will have odd mpg is their air/fuel mixture is off..... this is controled by your ECU and can be effected if you change your battery, disconect battery for stereo upgrades, or when serviced at dealership battery being disconected. as soon as you start the murano, your ECU is officially under air/fuel re-learning procedure and if you drive it as usual, you will set your air/fuel mixture wrong..... do determine if this is your mpg problem, you must do a 0 to 60 mph test.... 2 or 3 times .... then check what the 0 to 60 is listed for your model..... if your air/fuel mixture is off... you will get 2 to 3 seconds more then whats listed under your performance numbers.
disconect battery for 45 minutes
re-conect battery and start murano..... let it warm up to operating temp.... then plan your route to an open flat highway.......... you must keep RPM'S LOW..... below 2,000 ... on the open flat highway.... bring murano to 60 mph with low rmps set your cruise control once you hit 60 mph.... stay at 60 for 30 minutes.......... exit highway and do the same on the way back....
this procedure should be done 2 times per year or when installing a new exhaust system or intake system.....
mobil 1 5 w30 synthetic will also give you extra mpg....
my mpg city was down to 10.+ mpg i checked everything , cleaned throtle intake,new plugs,new tranny fluid,new rear diff fluid, 3 tanks of lucas fuel treatment and managed to get up to 13.44 mpg city.... still wrong...
then i did the 0 to 60 mph and got above 9.9 seconds...........something was really wrong........ i actually thought my rings on the cylinders where worn....
i was tought by special mechanic about ecu air/fuel re-learning procedure and everything is back to normal... i feel bad for anyone that sold their murano because of their unknown mpg problems wich dealership could not figure out....
Sep 26, 2009 (6:44 am)
Been driving 62 miles round trip on the interstate lately and have kept track of mpg. I wait until I get to the interstate and get up to 60 mph then reset the computer. Got as good as 31mpg for the trip and as low as 28mpg. This is the computer reading -- way too lazy to figure the gas used method. It drops quickly once you get off the highway -- 26-27mpg.Around town gets 20-22mpg. Still amazing that a vehicle this size can even touch 30mpg on REGULAR gas. Must be the cvt transmission. 09 sl awd with 9k miles.
Jul 22, 2010 (11:39 pm)
any newer numbers anybody?
#144 of 150 Re: mpg [guyverfanboy]
Sep 14, 2010 (5:10 pm)
2010 LE AWD
2,700 miles. 87 Octane 24.5 mpg in mixed driving. Mostly rural roads with hills. Hey it's WV
Sep 14, 2010 (9:39 pm)
2010 SL FWD
3500 miles - about 22.5 MPG mixed driving.
#146 of 150 Re: mpg [whitestar16]
Jan 24, 2011 (1:21 pm)
I have a 2010 SL AWD with about 1000 miles and I get about 15 MPG.
When can I start seeing improvements in the mileage? I used to drive a maxima before and it used to give me 20MPG... I am hoping I can acheive 18MPG on my MO.
Any suggestions on how long I should wait before I do the 0-60 test?
#147 of 150 Re: mpg [shail]
Mar 04, 2011 (11:05 pm)
Don't know how you drive BUT I had a Maxima for 7 yrs and consistently got 25+ MPG. Methinks the problem might not be the vehicle but like I said, not sure how you drive or your local driving environment. Surely you should be getting much better than 15 MPG......
#148 of 150 Re: mpg [godeacs]
Mar 05, 2011 (8:04 am)
I also had a Maxima for 7 years(1995-2002) and it got about 23-25 combined. Straight freeway was around 29mpg. Never measured straight city as I don't remember ever going a full tank of gas with less than 40% freeway driving when I had it.
Most drivers should at least get EPA in any car if they drive fairly conservatively and rarely stomp on it.
#149 of 150 Re: mpg [shail]
Dec 11, 2011 (8:03 am)
I was getting around 21 MPG in mixed driving since I bought 2010 SL AWD almost a year ago right from beginning and it is still the same now after close to 15,000 miles. I assume you have already done your 0-60 test. Did it help?
Apr 02, 2012 (3:58 am)
since i had ecu remaped mpg gone up to 27 mpg but alot of it is your driving style if i stomp on the loud pedal you are looking at 8mpg 0-60 time is 6sec