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Comments
-Barry
Can the Xterra and Pathys run OK on reg gas?
I assume the HP may be down a touch,
has anyone been able to test it both ways, and get real world #'s?
Is it hard on the engine?
thanks
Thanks,
Clay
Thanks,
Clay
:lemon:
Best of luck, Toyota next time.
My wife is considering an X-terra and I'm thinkin' that the S with the 6-Speed stick might hopefully do okay in the MPG Dept. I normally average 22.5 to 23 MPG with my '06 Frontier SE 4x2 Crew 4.0L 6-Speed driving conservatively at highway speeds, but I don't know how this would translate to an X-Terra.
I didn't know that the 3.327 rear axle ratio was different for 6 spd. Transmission. Thanks for letting me know. I still think it might be something else. The 2008 Xterra is getting 15-16 MPG on the highway and slips to 10 off road. The Xterra does have a lot more power than my 1999 Jeep Cherokee 4.0 liter auto with a rear axle ratio has 3.55 ratio. The Jeep definitely does have a higher ratio because the Jeeps engine RPMs are higher for the same speed. But the Jeep gets 22 MPG on the highway. I am thinking the Xterra has a large overhead rack (wind drag) on top. I am considering taking it off as a test?
The other thing might be my Jeep has a conventional automatic transmission. When did the Xterra go to the CVT (continuously variable transmission)? This is the very first CVT I have had on a truck. I have had them work well in snowmobiles and go-carts but a truck maybe that’s it???
Thanks,
pdclay
almost 1000 miles round trip
17.2 on the way down
17.6 on the way back
cruise set on 80 with tach at 2500.
To pdclay, the Xterra has a traditional 5-Speed geared automatic transmission -- it's never had a CVT, in North America at least.
I wonder if it would do any good to disconnect your battery cable for an hour and let the computer reset. I just got my truck back from the dealer and my MPG is bad because it has to re-learn my conservative driving style. At least I hope that's the problem!
I've noticed the milage is considerably less when I've been up in the hills offroading, but I think that makes sense. All in all I'm quite pleased with the mileage but not so excited with gas approaching $4/gal...
When I bought this Xterra in September of 07, it had just over 12,000 on it. Now, isn't fuel economy supposed to increase as the engine is broken-in more? Or is the Flowmaster muffler I have on it robbing me of efficiency? Hopefully putting a cold-air intake on it(yay for stimulus check!) will get me some more economy...
Just purchased X model 4x2 6 speed. 1st 3 tanks so far have ranged between 20-22 mpg in mixed driving. Amazing for a new car!
so what gives??????? your xterra 2005 and up has that open air line for the carbon canister... everytime you go off road or on dirt roads,,, you are exposing the dirt that gets into the frame of the xterra..... your system is being polluted .... when i just changed my purge valve last week,,, i found a ton of dust and dirt... took carbon canister and used a compressor to blow into the canister through the fuel tank breather line wich blew out a ton of dirt and dust out of the purge valve fitting.... so the dust in the system made its way into the intake area and i believe that my spark plugs are fouled from the dust........... this means that everyone that off roads needs to understand how the carbon canister works..... and a filter or longer breather line into the inside of the xterra needs to be placed.... i dont think anyone wants dust to be going into their intake via the fuel vapor line from the carbon canister line......
i hope that everyone can check with their personal mechanics and get some feed back into this situation............ so does it mean that the off road model has a filter on that breather line?????????
I've had my 2wd 6spd just for about 3 months now and have driven 4000 miles. I usually get 22-24 on the hiway, of course the lower mpg above 75 mph. Around town between 17-19 mpg. Very good all things considered for such a powerful and solid utility vehicle.
he re-set computer and told me about the re-learing procedure.... then after telling him everything i had done to the truck before the horrible mpg.... it all came back to me cleaning my battery posts and the ECU getting re-set... once i started the truck i drove as usual and the air/fuel mixture was set wrong.. causing my horrible MPG... so if any of you xterra owners have disconected your battery for any reason and your MPG is abnormal... that is the reason....
if you have any doubts about your mpg and if your engine is consuming more gas than usual, you will not get a service engine light coming on... everything will look and sound normal... the best way to find out is the 0 to 60 mph.... if you have a problem, you will get 9.9 seconds..... as i did...
when i got 9,9 seconds i though my engine had some serious issues...... i was wrong... just a simply re-setting ECU and driving with low rpm's while computer adjusted the air/fuel mixture.
Now service engine soon light came back on again. The nissan dealer plug it in and its the fuel vapor canister valve $138 piece.
I do the labor myself these are nissan prices always have nissan plug it in to read out the problem my charges $110
my 2005 4.0l automatic xterra gets mixed driving in the midwest at 18.5MPG and now has 89K miles
just installed EBC Green stuff brake pads w/ slotted rotors and s.s. brake lines
runs nice, Yeah I did 89,000 miles and there was still meat on the original pads
so my MPG comes from steady driving
A couple of months ago I decided to test out some of the tangible techniques suggested in a gearhead TV show on improving your gas mileage. I targeted 3 low cost / low risk area: Air Filter, Synthetic Motor Oil, and Roof Rack. I drive a 2007 Nissan Xterra SE (2WD with option of 4WD, V6, 4.0L, 265HP). When the vehicle was brand new, I would get 18-19 mpg city and 24-25 mpg highway @ 55-60 MPH with outdoor temperatures in the 60-80 F degree range. Slightly better gas mileage in the warmer weather than colder winter conditions.
My vehicle was purchase new (I am original owner). The recommended oil is 5W-30. I drive my Xterra in the Mid-Atlantic region. Mostly in VA, MD, WV. Oil change and scheduled maintenance performed by dealer. Castrol 5W-30 used.
BEFORE MODs: Before any modifications, my 2007 Nissan Xterra did 18-19 mpg city & 24-25 mpg highway @ 55-60 MPH
Air Filter: My initial step was to see if the K&N High-Flow air filter would increase my gas mileage (K&N part number for Xterra # 33-2286). Unfortunately my gas mileage did not improve for either city or highway driving. I do need to note that at the time I change my generic Nissan air filter to the K&N high-flow air filter, I kept my Yakima 60" round crossbars and RailGrab mounts on my factory roof rack. By my calculations the Yakima roof rack reduced my gas mileage by about 2 mpg city and 2 mpg highway driving. Since, I was familiar with my gas mileage before, I did want to remove my Yakima rack concurrent with the K&N air filter. So, in short, I did see a any improvement in my mileage with the K&N air filter. I was hoping dramatic improvement in gas mileage per the K&N website "marketing" literature.
CHANGING OVER TO SYNTHETIC MOTOR OIL: The second step was to test out a high quality fully synthetic oil and oil filter vs. the regular Castrol oil. After researching the grade and brands, I decided to test out Mobil 1 Extended Performance 5W-30 fully synthetic oil. The oil is designed to 15,000 between oil changes. Mobil 1 now has a number of different synthetic oils. The big difference seems to be the interval change. The products come in a 3,500, 5,000, 7,500, and 15,000 miles between oil changes. I went ahead with the Mobil 1 Extended Performance because I found it on sale for about the same price as the regular Mobil 1. I don't think the different products will make much difference. I also installed a Mobil 1 oil filter specifically designed for synthetic oils (part # M1-110). I did not realize how small the 2007 Nissan Xterra oil filter is. Looks like a lawn mower tractor oil filter. Very small. Once again I did not remove my Yakima roof rack when I changed over to the Mobil 1 synthetic oil. I did see any significant change in my mileage. In fact after driving 1,000 miles (mostly highway), my mileage was no better than 17.9 - 18 mpg city and 22 - 22.5 highway at 60-70 MPH. Temperatures ranged in 30 - 50 degrees. So again, I was expecting a big jump, but not much improvement in my gas mileage.
REMOVING YAKIMA ROOF RACK: After seeing no significant improvement in my gas mileage after installing a K&N high-flow air filter and changing over to synthetic oil, I decided to remove my Yakima roof rack. I could not imagine the Yakima crossbars without any kayak or ski attachments would cause so much drage. But, what the heck. So, this morning I drove the car around without the roof rack, and to my astonishment the mileage improved about 2 mpg city and 2-3 mpg highway driving at 55 MPH. So with the two modifications and removal of my Yakima roof rack, my 2007 Nissan Xterra is getting 19.8 mpg city and 25-26 mpg highway.
In summary, I conclude the synthetic oil and high-flow air filter improved my gas mileage about 1 to 1.5 miles for both city and highway. I think Nissan incorporated the factory rook rack (and bars) into the cargo box to reduce wind drag. In other words the roof seems pretty streamlined to optimize gas mileage. I did realize how much drag the Yakima crossbars added. I guess when my kayaking season is over, I will remove my other roof accessories from now on. The biggest band for the buck is to reduce your wind drag. In my experience when the cars clean and waxed it gets better gas mileage.
I don't boat much anymore so my Yak Racks live in the garage most of the time.
When our Quest only had ~4,000 miles we did a long road trip and put ~30,000 miles on it, hauling a canoe on top the whole way (78" bars).
When we got back home, the mpg went down for the next 4,000 miles.
It only went down a tenth, but for best mpg, don't drive in town.
ie. should i fill completely up or begin with half a tank?
midgrade or premium or bottom dollar fuel is advised?
I have a 2005 xterra and just recently replaced the cat converter. the vehicle is in great condition with no lights or issues other than its sure thirsty!
thanks for the consideration.