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Nissan Altima Real World MPG

301 messages,  Last post on May 15, 2013 at 4:23 AM

You are in the Nissan Altima Forum.

What is this discussion about? Nissan Altima, Fuel Efficiency (MPG), Sedan

Messages Page 2 of 31

#10 of 301 Re: Nissan Altima Owners: MPG-Real World Numbers [rennie4] by snowie

May 24, 2006 (7:42 am)

Replying to: rennie4 (Apr 19, 2006 7:07 pm)
I have a 1997 Nissan Altima GXE (2.4l 4-cyl). I average 30-32mpg (computed manually). I drive mainly highways at around 75mph.
 
I recently took a long trip that forced me to use country roads (no direct highway), with a max speed of 55mph. My mpg jumped to 39mpg!!
 
I do use some low cost enhancements on it which I believe helped; Bosch Platinum +4 spark plugs (100,000mile life), K&N drop-in filter, touring tires (threadware rating 620).
 
I've just started using synthetic oil, so hopefully the mpg figure could see a minor improvement.

#11 of 301 Re: Nissan Altima Owners: MPG-Real World Numbers [caaltima05] by lmacmil

Jul 06, 2006 (7:21 pm)

Replying to: caaltima05 (Oct 07, 2005 4:51 am)
Had a 2.5S rental for a 220 mile trip, all highway with overall average (per GPS of 65 mpg). Freeway speeds were 70-80 mph and about 40 miles of 2 lane highway at 55-65. Averaged over 34 mpg (6.4 gal to fill up). I was very impressed.

#12 of 301 Nissan Altima MPG by xjungrocx

Jul 07, 2006 (8:12 pm)

2002 Nissan Altima 3.5 SE (Manual transmission)
w/ AEM cold-air intake
 
City: 19 MPG
HWY: 28 MPG
 
calculated by hand (trip computer gives higher reading)

#13 of 301 great mileage by rennie4

Jul 28, 2006 (12:47 pm)

my gas mileage has been great so far. I have been getting over 31.5+ mpg with the AC running on max based on the trip computer going 80-85 behind cars on the NYS thruway. When i'm the only car on the highway. I have to drive 75 with the AC off to get that kind of mileage with no people in the car. I drive over 550 miles on every tank. i usually get 28.2 mpg going the same 80-85 on the highway with no cars on the road with the AC on. I got my car in April and i now have 12,000 miles on it with not a single problem.

#14 of 301 Hard to believe numbers on Altima by valley

Aug 31, 2006 (2:33 am)

I envy you guys' high numbers My 2000 Altima (GXE 2.5L, 4-speed auto) fared far worse. Out of EPA city/highway ratings of 21/28, I got 22 to 23 mixed (35%/65%) when the car was new; city could easily fall to 18 mpg and highway trips would post 25 mpg. I have always driven conservatively, and rarely use A/C in this car.
 
When this car becomes older, I now use even more aggressive conservation maneuvers to get 23 mpg city most (65%/35%) and 28 mpg highway. I'd love to learn some of your tricks. (Gotta admit that I wasn't very at tentative to tire pressure, but I would expect better mpg when the car was brand new.)

#15 of 301 Re: Hard to believe numbers on Altima [valley] by ray_h1

Aug 31, 2006 (12:45 pm)

Replying to: valley (Aug 31, 2006 2:33 am)
))"Gotta admit that I wasn't very at tentative to tire pressure, but I would expect better mpg when the car was brand new."((
 
Nothing could be farther from the truth. A new engine is as tight as it'll ever be (until rebuilt again - if ever). The sliding/rotating parts have yet to achieve their ideal seating with their mating parts. To some degree this is also happening with the transmission. This period is traditionally referred to as "run-in" or "break-in", and though it's not nearly as involved a procedure as in previous times, it's still something that has to take place and will initially impact fuel economy. Engines don't hit their fuel economy stride until around 5,000 miles of accumulated mileage. Tire pressure will definitely affect fuel economy, too. Dealerships love to adjust tire pressure down below the factory recommended level prior to delivery to achieve a "boulevard" ride. A new tire will also lose some pressure initially until its bead fully seals against the wheel rim. Whatever its cause, lower pressure increases rolling resistance (bad for fuel economy), negatively impacts traction, and increases heat buildup within the tire (bad for tire life). Some owners actually prefer running their tire pressure several pounds more than the factory-recommended setting for further decreased rolling resistance and internal heat buildup. (But never increase the cold pressure beyond the maximum limit molded on the tire sidewall.)

#16 of 301 Re: Hard to believe numbers on Altima [ray_h1] by valley

Aug 31, 2006 (10:55 pm)

Replying to: ray_h1 (Aug 31, 2006 12:45 pm)
Good point, ray_h1. (Note to self: Don't think you know physics; mechanics is what matters here ) Also nice pointer about "boulevard" ride. When I measured new, it was after break-in according to manual, i.e., 1,000 miles. With then commute of 20 miles/day, it took a while to get past 5,000 mile mark.

#17 of 301 MPG update by rennie4

Sep 09, 2006 (5:43 pm)

Just the other day i took a trip up north on the NYS thruway and got amazing gas mileage for the speed i was going. I average 32+mpg going 80-100(everybody was flying) M.P.H and on the way back averaged 35+ going 70-72. Iv'e already put 17,000 miles on the car and it's only 5 months old so the good gas mileage is a plus. I usually drive at least 500 miles on almost every tank. the most miles iv'e driven on a tank has been 615 miles.

#18 of 301 Best deal search by cryptoguy

Sep 13, 2006 (6:27 am)

I doubt I am the first to ask this question...
Warranties...
Wife is buying a Honda Accord -
I am buying a Pathfinder...
What is the best deal on warranties for each?
I am seeing lots of different options and my dealer is
offering a few choices also, in different price ranges...
Options???
Thanks
cryptoguy...

#19 of 301 Re: Best deal search [cryptoguy] by pat

Sep 13, 2006 (8:16 am)

Replying to: cryptoguy (Sep 13, 2006 6:27 am)
Hi cryptoguy - welcome!
 
This is an Altima Real World Mileage discussion, so the folks who can answer you probably aren't going to see your post here.
 
What you want to do is check out the groups on the Accord and the Pathfinder. We also have a general discussion on Extended Warranties that may be helpful.
 
Enjoy!

Messages Page 2 of 31

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