I hope my gas mileage improves
I hope my gas mileage improves
Over the first 3 tanks (922 miles) my gas mileage is 21 MPG with 100% highway driving at 75-80 mph. I realize that I will not get the best mileage at these speeds, but I expected a lot better than 21. Has anyone noticed that mileage improves after the first few thousand miles? I hope so...
Re: I hope my gas mileage improves (jasonMz3)
So far I've driven from Buffalo to Toronto, and I've had two days of commuting, and I'm averaging around 25mpg. I've been keeping my speed reasonable because I'm only on a temporary in-transit pass and I don't want to have to explain it to a cop. I'll post my gas mileage after a few more fill ups.
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Dakota4791
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Eikon
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Re: I hope my gas mileage improves (jasonMz3)
Jason, are you basing your figures on the in-car computer readout.. or are you basing them on actual odometer vs. fuel pumped at the gas station?
If you are going off of the in-car calculation.. it's not very accurate at all, and I wouldn't trust it for anything other than a novelty.
And Yes.. your gas milage should improve after you've put a few miles on the car.
Are you using the basic automatic mode, or have you been using the manual mode? I expect the manual mode on the CVT would be less gas effiicient.
Another thing to consider is that most new car ECU's (engine computers) have a basic learning function. They learn how you drive and adjust some of the engine inputs (fuel) to help adapt to how you drive the car. Often if the vehicle was driven hard at first, it will not get the best gas milage as the computer has learned to help maximize acceleration. To reset the ECU, simply unhook the battery for an hour or perhaps even overnight. Then drive the car gently for a while and have the computer adapt to a more conservative driving style.
hope this helps.
If you are going off of the in-car calculation.. it's not very accurate at all, and I wouldn't trust it for anything other than a novelty.
And Yes.. your gas milage should improve after you've put a few miles on the car.
Are you using the basic automatic mode, or have you been using the manual mode? I expect the manual mode on the CVT would be less gas effiicient.
Another thing to consider is that most new car ECU's (engine computers) have a basic learning function. They learn how you drive and adjust some of the engine inputs (fuel) to help adapt to how you drive the car. Often if the vehicle was driven hard at first, it will not get the best gas milage as the computer has learned to help maximize acceleration. To reset the ECU, simply unhook the battery for an hour or perhaps even overnight. Then drive the car gently for a while and have the computer adapt to a more conservative driving style.
hope this helps.
Re: I hope my gas mileage improves (Eikon)
I have been calculating the mileage manually, miles driven / total gallons pumped. Surprisingly, I am getting almost exactly what the computer says. My fiance is the one driving the car. She drives fast, but doesn't do a lot of fast accelerations. She also doesn't use the cruise control or manual mode. I have tried to get her to use cruise, but she says cruise control is a reason to fall asleep (she drives 150 miles a day). If it doesn't improve over the next couple tanks I'll unhook the battery to see if that helps. Thanks for suggestions.
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originalstarlite
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It is Not Always About the Break-in Period
Jason, I am sure you are knowledgeable about using fuel efficiently, and I do not know why you are turning a blind eye towards the truth of the matter. Speed Kills Gas Mileage.
"As a rule of thumb, you can assume that each 5 mph you drive over 60 mph is like paying an additional $0.20 per gallon for gas." That is from the government fuel economy website. Here is a link to read it and weep.
http://www.fueleconomy.gov/feg/driveHabits.shtml
According to the chart, you will never do any better than you are. If you want good gas mileage you have to drive with more reserve. BTW I get 22 MPG in the city with AWD and constant PA hills.
"As a rule of thumb, you can assume that each 5 mph you drive over 60 mph is like paying an additional $0.20 per gallon for gas." That is from the government fuel economy website. Here is a link to read it and weep.
http://www.fueleconomy.gov/feg/driveHabits.shtml
According to the chart, you will never do any better than you are. If you want good gas mileage you have to drive with more reserve. BTW I get 22 MPG in the city with AWD and constant PA hills.
Re: It is Not Always About the Break-in Period (originalstarlite)
I am not expecting to get 26 MPG (EPA rating) going 75-80, but I didn't expect this much of a drop either. My Mazda 3 gets virtually the same mileage going 55 as it does going 75, only 1 or 2 MPGs different at most. Even the 97 Ford Escort that we just got rid of didn't take too much of a hit at those speeds. I guess the difference must be that the Rogue has more drag due to its larger size.
Driving 80 mph on I-70 through rural Missouri is a must. The speed limit is 70 mph, and even at 80, half of the trucks are passing me in the left lane. Plus, driving 75 miles to work each way makes it really hard not to go fast. I'd be happy if it improved by just a couple MPGs.
Driving 80 mph on I-70 through rural Missouri is a must. The speed limit is 70 mph, and even at 80, half of the trucks are passing me in the left lane. Plus, driving 75 miles to work each way makes it really hard not to go fast. I'd be happy if it improved by just a couple MPGs.
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Dakota4791
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Re: It is Not Always About the Break-in Period (jasonMz3)
I think I would reset the ECU. I just got back from a road trip from GA to NC and I got 28mpg on one tank and 26.8 on another on the interstate and this was running 10 mph over the speed limit so alot of this was at 75 to 80 mph. The worst I have ever gotten was 24.5mpg. i have about 2500 miles on my 2wd Rogue now. Is your Rogue AWD or 2WD?
I will say the Rogue was not under a strain at all at these speeds and I had to watch my speed to stay out of trouble with the state troopers.
I will say the Rogue was not under a strain at all at these speeds and I had to watch my speed to stay out of trouble with the state troopers.
Re: I hope my gas mileage improves (jasonMz3)
I'm very unhappy with the gas mileage on my Rogue. I've had for 4 mos. and am getting 19 mpg. This last tank however, was all highway and I did get 21. I now had 4000 miles on it.I gave up a Toyota 4runner getting 24 mpg and 3 times the car.
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philipa_240sx
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Re: I hope my gas mileage improves (jnp62)
Look like an old thread has been revived...
Fuel mileage is dependent on so many factors. Driving habits, fuel type, types of driving (city or highway), etc. The CVT also seems to magnify lead footed city driving by keeping the engine at higher rpms than a conventional automatic.
4000miles is just broken-in so you should start seeing better fuel economy by now. Try taking it a bit more easy and drive smoothly avoiding sudden acceleration or changes in speed.
And lastly, make sure you are calculating your fuel economy correctly. The dashboard readout is not the most accurate. You should be doing it manually by recording the mileage and gallons pumped at each fill up. It helps to fill up at the same gas pump and pump a full tank every time. ie pump until it shuts off.
Fuel mileage is dependent on so many factors. Driving habits, fuel type, types of driving (city or highway), etc. The CVT also seems to magnify lead footed city driving by keeping the engine at higher rpms than a conventional automatic.
4000miles is just broken-in so you should start seeing better fuel economy by now. Try taking it a bit more easy and drive smoothly avoiding sudden acceleration or changes in speed.
And lastly, make sure you are calculating your fuel economy correctly. The dashboard readout is not the most accurate. You should be doing it manually by recording the mileage and gallons pumped at each fill up. It helps to fill up at the same gas pump and pump a full tank every time. ie pump until it shuts off.
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zengshengliu
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Re: I hope my gas mileage improves (philipa_240sx)
My gas mileage is worse than hisI got around 18 to 19(actual calculation, not from the onboard computer)I had around 9000 miles on itand 50 highway 50 cityI never push the car above 3500 rpm so I don't know why I am getting such a low mileage
Re: I hope my gas mileage improves (zengshengliu)
Like Philip said, it really depends on how you drive the car.
Remember that the car will learn from you: If you drive it hard since you got it, it will stay high in rev longer than if you have been gentle with it (it learned that you want fast response to the throttle).
If you want to change your way to drive the car, I believe that you can reset this learning process by disconnecting the battery for a while, but ask your dealer first to know if there will be other consequences.
In winter, with 80% highway, 20% city (traffic jam), I get from 26 to close to 29 mpg. In summer, I am above 31 mpg.
BUT I never go above 2500 rpm while the engine warms up and never above 2100 rpm when the engine is warm (except once or twice to show my wife this car can accelerate if needed, or change a lane in traffic).
3500 rpms is way too much if you want to achieve fuel economy. 3500 rpms is for spirited driving (thing the Rogue can do too ) but then you should not look for fuel economy: Not sure people with big SUV or sport car look what they did fuel economy wise.
Remember that the car will learn from you: If you drive it hard since you got it, it will stay high in rev longer than if you have been gentle with it (it learned that you want fast response to the throttle).
If you want to change your way to drive the car, I believe that you can reset this learning process by disconnecting the battery for a while, but ask your dealer first to know if there will be other consequences.
In winter, with 80% highway, 20% city (traffic jam), I get from 26 to close to 29 mpg. In summer, I am above 31 mpg.
BUT I never go above 2500 rpm while the engine warms up and never above 2100 rpm when the engine is warm (except once or twice to show my wife this car can accelerate if needed, or change a lane in traffic).
3500 rpms is way too much if you want to achieve fuel economy. 3500 rpms is for spirited driving (thing the Rogue can do too ) but then you should not look for fuel economy: Not sure people with big SUV or sport car look what they did fuel economy wise.
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zengshengliu
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Re: I hope my gas mileage improves (Pescakl1)
3500 rpms is only when I need to speed up on highwaywhen I drive in cityI never get above 2500 rpms, unless going up hill or special situation
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RubenTheRogue
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Re: I hope my gas mileage improves (zengshengliu)
My gas mileage crapped out when gas stations switched to winter blend, but that is nothing out of the ordinary. When I drive I get good mileage, now when the wife drives its a whole 'nother story....
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philipa_240sx
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Re: I hope my gas mileage improves (RubenTheRogue)
Some of us may be doing things that decrease fuel economy without even realizing it. When my my wife (ahem) drives on the highway, she has an annoying habit:
She creeps up on other cars, decelerate so she doesn't get too close, then accelerates as the other car starts to pull away. The process repeats itself every few minutes. She does not realize she is doing this, it's all automatic for her... part of her routine in daily driving. But this small act has a huge impact on fuel economy. At times her Mazda Protege gets even worse fuel economy than my Rogue... and she has a small car with a 2.0L motor!
Drive gently, smoothly, and stay closer to the posted speed and you can surprise yourself with better fuel economy.
She creeps up on other cars, decelerate so she doesn't get too close, then accelerates as the other car starts to pull away. The process repeats itself every few minutes. She does not realize she is doing this, it's all automatic for her... part of her routine in daily driving. But this small act has a huge impact on fuel economy. At times her Mazda Protege gets even worse fuel economy than my Rogue... and she has a small car with a 2.0L motor!
Drive gently, smoothly, and stay closer to the posted speed and you can surprise yourself with better fuel economy.
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zengshengliu
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Re: I hope my gas mileage improves (Pescakl1)
I might consider doing thathow long do I need to disconnect the battery for it to clear the learnin process?Pescakl1 wrote:If you want to change your way to drive the car, I believe that you can reset this learning process by disconnecting the battery for a while, but ask your dealer first to know if there will be other consequences.
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philipa_240sx
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Re: I hope my gas mileage improves (zengshengliu)
Actually, it doesn't work on the Rogue. You need an OBDII/CANBus compatible scan tool to clear the self learning fuel mixture values.
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zengshengliu
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Re: I hope my gas mileage improves (philipa_240sx)
ohWhere can I get one of these scanning tools? How much does it cost? And how hard is it to use?Sorry I don't know much about cars
Modified by zengshengliu at 6:07 AM 2/18/2009
Modified by zengshengliu at 6:07 AM 2/18/2009
Re: I hope my gas mileage improves (philipa_240sx)
So its YOUR wife who keeps doing that to me
Man, here I am driving the speed limit using my cruise control, and in the rear view, a Mazda pulls up close and I think to myself - "why don't they just change to either the open right or left lane"?
Wait a second, I don't live in Ontario, must be someone else.
Man, here I am driving the speed limit using my cruise control, and in the rear view, a Mazda pulls up close and I think to myself - "why don't they just change to either the open right or left lane"?
Wait a second, I don't live in Ontario, must be someone else.
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philipa_240sx
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Re: I hope my gas mileage improves (zengshengliu)
Any auto parts store should have them. Be sure to get one that is CANBUS compatible.zengshengliu wrote:ohWhere can I get one of these scanning tools? How much does it cost? And how hard is it to use?Sorry I don't know much about carsModified by zengshengliu at 6:07 AM 2/18/2009
A few members have purchased the Scan Gauge II. Not only is it a scan tool, it also gives you an instantaneous fuel mileage readings and lots of other neat stuff.
http://www.scangauge.com/
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zengshengliu
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Re: I hope my gas mileage improves (philipa_240sx)
Thanks I am going to get one of thi, the Scan Gauge IIWhen it arrives, do you think you can guild me through the process?philipa_240sx wrote:
Any auto parts store should have them. Be sure to get one that is CANBUS compatible.
A few members have purchased the Scan Gauge II. Not only is it a scan tool, it also gives you an instantaneous fuel mileage readings and lots of other neat stuff.
http://www.scangauge.com/
Re: I hope my gas mileage improves (zengshengliu)
Philip, I have a scangauge, but i am not sure you can clear the self learning fuel mixture values with it.zengshengliu wrote:
Thanks I am going to get one of thi, the Scan Gauge IIWhen it arrives, do you think you can guild me through the process?
You can clear faults when they appear, like a Check Engine Soon warning light, but these values are not values indicating any problem in the car, so I am not sure you can even access them with this tool.
Zengshengliu, if you already bought it, don't worry, it is a good investment: It helps a lot improving your way of driving more fuel efficiently.
For the resetting, why don't you go to the dealer like I said? They have all the tools and knowledge to do it for you, and since it is a 5 minutes job for them, it won't cost much (maybe they can do it while you are there for something else, like a oil change).
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zengshengliu
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Re: I hope my gas mileage improves (Pescakl1)
Ok I will let my dealer know when I go get my next oil changeSo I just need to tell them that I want to reset the self-learning fuel mixture value? Is this what it call?Pescakl1 wrote:
Philip, I have a scangauge, but i am not sure you can clear the self learning fuel mixture values with it.
You can clear faults when they appear, like a Check Engine Soon warning light, but these values are not values indicating any problem in the car, so I am not sure you can even access them with this tool.
Zengshengliu, if you already bought it, don't worry, it is a good investment: It helps a lot improving your way of driving more fuel efficiently.
For the resetting, why don't you go to the dealer like I said? They have all the tools and knowledge to do it for you, and since it is a 5 minutes job for them, it won't cost much (maybe they can do it while you are there for something else, like a oil change).
Re: I hope my gas mileage improves (zengshengliu)
I have an 09 awd and getting between 24 to 25 mpg, my daily commmute is all highway 54 round trip. Im doing between 70 - 75 mph with an occasional bump up to 80 mph. I'm sure if I drove at the speed limit I would average more but the other cars on the road won't let me. So I go with the flow.
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redroguegal
- Posts: 35
- Joined: Sat Jun 07, 2008 1:18 pm
- Car: Nissan Rogue
Re: I hope my gas mileage improves (Rogue216)
I have been getting between 21-24. I have 8,000 miles on my Rogue. I don't think I'll ever do any better. It is the best when i drive more on the highway with cruise on. (duh) Still beats the heck out of my Acura which was getting 16-18 and waaay more fun to drive!
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zengshengliu
- Posts: 359
- Joined: Thu Dec 18, 2008 5:21 am
- Car: 2008 Nissan Rogue SL
Re: I hope my gas mileage improves (Pescakl1)
I got my Scan Gauge IIOther than checking trouble codes and showing the status(rpm, mpg, mph, wt, etc) What other functions does it have?Pescakl1 wrote:
Philip, I have a scangauge, but i am not sure you can clear the self learning fuel mixture values with it.
You can clear faults when they appear, like a Check Engine Soon warning light, but these values are not values indicating any problem in the car, so I am not sure you can even access them with this tool.
Zengshengliu, if you already bought it, don't worry, it is a good investment: It helps a lot improving your way of driving more fuel efficiently.
For the resetting, why don't you go to the dealer like I said? They have all the tools and knowledge to do it for you, and since it is a 5 minutes job for them, it won't cost much (maybe they can do it while you are there for something else, like a oil change).
Re: I hope my gas mileage improves (zengshengliu)
It is my observation that the Rogue (due to aerodynamic design?) gets considerably better mileage at 65 than 70-75. We get low 30's when cruising at 60-65 and the mpg drops to mid 20's above 70. Just my 10 cents worth.
Re: I hope my gas mileage improves (daytrippr)
I've noticed this also - the drastic change in mileage numbers beyond 65 mph. I've always thought it was due to the higher engine RPMs. They take a little jump beyond above 70mph to 3000+ RPM, whereas below 65 mph, the engine is running at a sweet spot of 2500 RPM or so.
Maybe I'm just taking out of my butt though.
Maybe I'm just taking out of my butt though.
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SquiggyFreud
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Re: I hope my gas mileage improves (ahhbeebee)
no one mentioned ethanol...this decreases mileage as well, up to 20% I have heard, depending on the amount of ethanol...I only use shell/chevron, drive like a bat out of hell, quick starts, punch it regularly(tis why I bought a rogue and not another CRV), the list goes on, 50 mile round trip to work city/highway mix, I average 23-25MPG.
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