Last post on Aug 16, 2013 at 6:21 AM
You are in the Nissan Sentra
What is this discussion about?
Nissan Sentra, Fuel Efficiency (MPG), Sedan
#63 of 91 Re: bad gas mileage 2008 Sentra [kph2757]
May 29, 2010 (7:55 am)
Its not the cars problem. It's your driving that is affecting the MPG past 70, Vehichles are at their optimum fuel efficiency in the 55-60mph range.
For example if I wanted to push my 05 Nissan to the extreme in MPG numbers (40mpg Hwy 38mpg city) i'd use hypermiling techniques. Sure I'd anger every other driver out there with slow starts from stoplights and slow merging on the highway but I'd save enough on gas to make it through 4$ a gallon.
Currently I'm sitting at about 30mpg combined without doing hypermiling.
#64 of 91 Up to 35.0 mpg
May 29, 2010 (11:19 am)
Just filled up the 2010 2.0S CVT, and on my last tank-and-a-half (I put in 6.6 gallons earlier, couldn't pass up a great price) I averaged 35.0 mpg by computer, and 33 mpg by calculation (but I filled at two different stations this time). This is significantly better than any other tank to date, even though I used the AC about half the time and didn't use it hardly at all on the first two tankfuls. I did do more miles on urban freeways this time--probably 80-85% this time around. All the freeways in my town have a maximum speed of 65 mph, although yesterday I went for a 50-mile trip and got up to 70 for awhile because I was outside of town.
About half-way through this run, I was at about 37 mpg. Then use of AC, more city streets, and more stop-and-go (construction etc.) took their toll. I'm happy though with 35 mpg, given the EPA for highway driving is 34 and I was driving mostly in town.
The car is very sensitive mpg-wise to pedal pressure. Keep a light touch on the pedal, and you can get very good fuel economy. But use all 140 horses, and the mpg meter will sag pretty fast. That is what I saw the few times I decided to see what kind of pep the car has.
#65 of 91 Re: bad gas mileage 2008 Sentra [agilber]
Jun 01, 2010 (6:47 pm)
I'd like to correct my last post. My 2008 runs at 2200 rpm at 70 mph on flat roads. On hills I can understand 2200 rpm but I don't even hit 2200 rpm starting from a dead stop. That's why I get better mileage in city (not much stop and go) driving.
Driving like there's an egg on the gas pedal helps alot!
#66 of 91 Re: bad gas mileage 2008 Sentra [agilber]
Jun 01, 2010 (8:07 pm)
That's interesting. My 2.0 CVT runs at about 2000 rpm at 70 mph, on flat roads. I wonder what could account for the difference, i.e. was there some change made between 2008 and 2010?
#67 of 91 2000 miles, 34.1 mpg
Jun 26, 2010 (4:14 pm)
Just filled up and got 34.1 mpg over the last 22.5 gallons (did a partial fill awhile back). I was at 34.5 until the last few days, then did a lot of driving on city streets which brought the average down a bit. Still pretty good though. I didn't have any trips over 25 miles this time, and had the AC on more than the last reading--starting to get hot and humid. Car is now just under 2000 miles.
#68 of 91 Re: 2000 miles, 34.1 mpg [backy]
Jul 22, 2010 (5:22 pm)
Now close to 3000 miles. Did one fill at 34.3 mpg, usual around-town stuff like most tankfuls. Then I took the car on its first long trip, a 530-mile round trip in one day, most of it around 65-70 mph but with some slowdowns for construction and accidents, and a little in-town driving on both ends. After 2 hours I saw 40.2 mpg on the meter and had dreams of getting over 40 for the trip. Then I hit some construction and accidents, and that plus the in-town driving brought the final tank trip average to 37.8. Had the A/C on all the time--got to 90 F that day.
#69 of 91 2008 Nissan Sentra 2.0S real world MPG
Sep 14, 2010 (10:31 am)
Total miles driven 58000 miles, 80% Highway miles, Air conditioning uses 20% of the time. Drives 65 miles/hr speed.
Cruise control - very rare and it reduces the fuel efficiency.
Car Trip Computer reading - don't trust that reading, it reads 3 -5 miles more than actual reading.
I do use scan gauge and drive behind the truck occasionally.
I do reset the trip computer and odometer every time fill the tank, always filled the tank in full. The actual mileage is from 30 to 34 miles/ gallon - best tank full.
My Opinion - this is not a fuel efficient car and not suitable for hypermiling either. I do drive Camry 1997 and 2007 both of them gives better mileage than Sentra.
#70 of 91 Re: 2008 Nissan Sentra 2.0S real world MPG [leotsk]
Sep 14, 2010 (4:31 pm)
30 mpg with 80% highway at 65 mph seems very low for the 2.0. Do you have the CVT or stick?
I have found that high FE on the Sentra requires a very light foot. I notice when my wife drives our 2010 Sentra (which is not too often), FE drops greatly (she has a lead foot). For example, she'll struggle to get low 20s in town while I easily get over 30. I hate it when she takes out my car, because I'll be doing fine on a tank, between 34-35 mpg usually (it's at 36.2 on current tank), and she'll drive it a bit and it's down below 30! When I have intentionally used a heavier foot (or just feel like zipping around a bit), FE drops off. Based on my experience, I think upper 30s, even close to 40, is possible under the conditions in which you drive, if your highway miles don't involve much traffic, but you'll have to work for it and resist all temptations to unleash the 140 horses. If that is too much work... oh well, 34 mpg is the EPA highway rating for the car.
#71 of 91 2010 Sentra SR MPG Problem
Feb 18, 2011 (6:01 pm)
#72 of 91 2010 Sentra SR MPG Problem
Feb 18, 2011 (1:42 pm)
Hello Everyone, I'm new to the forums, but I was wondering if anyone could offer any insight to a problem I'm having. I purchased a 2010 Sentra SR a year ago and have had consistent mpg problems. From the get go, I experienced 28mpg with ~75% highway on 65 and 70 speed limit highways (i normally never go above 5 over and use cruise control as much as possible). Since the winter hit, I've seen a drop in my mpg to 25-26. However, I have a new job that requires me to travel an hour and 15 minutes one way... 98% highway... and I don't use the car for much else because the mpg has been so depressing (i also have a corolla that gets ~34mpg constantly, so I use it for errands and such, but my wife also uses it for work... she likes it better ~sigh~). The speed limit is 70 the whole way. I hit 75 and put on cruise control and hardly need to speed up. I use the same gas all the time (Shell), mostly from the same station. I finally got frustrated enough after a calculated mpg of 25.3 that I went to the dealership I made the purchase from. They ran a fuel alpha test which tests the fuel to oxygen ratio being used and said that it fell within normal parameters (....sure it did) and that there was nothing they could do. They did suggest trying a different gas, but I don't think that will offer a great difference, or maybe that's naive. Anyway, I honestly do not think this is normal and was wondering if anyone had any information I'm missing or could think of something I could do to improve the mpg. Thanks!