gas saver - Nissan Xterra Forum
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#1 Old 09-03-2012, 02:09 AM
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gas saver

SO I've noticed this big beautiful beast I have sitting out in my parking lot isn't the most aerodynamic nor is it the most gas friendly. I was curious if anybody had any suggestions on helping out with the old mpg. I'd like to stay away from the after market intakes or ehaust systems seeing as how I only have 900 miles on it. I know little things help though. I've only ever dealt with gas sipping rice burners before this other than my jeep.
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#2 Old 09-03-2012, 02:13 AM
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I keep mine below 2500 rpm's and it helps alot and I am all stock. Just remember to leave early because my 01 runs 2400 rpm's at 65 mph

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#3 Old 09-03-2012, 09:29 AM
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first you only have 900 miles on it

you need to let the engine break in, around 6000 miles or so you will start to get better mileage, it took mine about 10000km to start getting good mileage.

once you reach that mileage then you can look at putting in a drop in K&N filter and doing the airbox mod, besides that drive reasonable and you should get good mileage, but remember this is an X not a civic so dont expect high numbers, 18-20 on average

i get 14.6l / 100 km in the city which is what the sticker claimed
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#4 Old 09-03-2012, 10:34 AM
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Yeah its pretty documented on theNewX that its takes the 4.0 a few thousand miles to break in before the MPGs increases.

Best thing you could do though is add a K&N filter. Will help it breath a little better.

I have done well by adding a ultragauge too.. I watch the instant MPGs and use the gas pedal appropriately. Its a game to me no To see how much more fuel I can save vs last week
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#5 Old 09-09-2012, 07:40 PM
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You surely need to let it break in before even trying to gauge economy. after that.

Synthetic oil
Tire pressure
driving habits, driving habits, driving habits.

Remember driving around town to be easy on the gas pedal and watch your highway speed. My 11' gets noticeably worse economy above 55-60 mph. I have always had the habit of putting the trans in neutral at lights too. I can manage 18.5 to 19 mpg mixed driving mostly around town. My X has almost 15K on it now and it has improved since new.
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#6 Old 09-09-2012, 08:19 PM
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There are two ways to save gas in an X:

1. Park it and don't drive it
2. Get rid of it

Your mileage will be slightly better after break-in period, but not a lot. I average right around 17 and I do mainly highway driving. I have stock intake and stock exhaust. If you can keep your foot out of it, an air intake and exhaust may get you better mileage. I would recommend a Volant over a K&N though, as the Volant is a dry filter where as a K&N is oiled. If done improperly, the K&N can cause issues. Also, I would recommend the ScanGauge over the UltraGauge. It is well documented that the Ultragauge causes some weird issues to pop up in 2nd Gens. Good luck!

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#7 Old 09-10-2012, 03:58 PM
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lighten up-take out anything that sits inside you don't use. maybe take off the crossbars from the rack [aerodynamics] and what everyone else suggested
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#8 Old 09-15-2012, 06:18 PM
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what is the ultragauge?
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#9 Old 09-17-2012, 01:33 PM
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Originally Posted by drbandkgb View Post
Best thing you could do though is add a K&N filter. Will help it breath a little better.
I forget where I found it now, but I saw a *small* study done by a university (in partnership with the EPA) studying MPG and how routine maintenance items impact it.

They actually found that a older, dirtier air filter, while causing a decrease in HP, actually caused an increase in MPG vs a new clean or after market air filter.

I recall one of the cars was a GM V6 (like a LeSabre motor or something) and one IIRC was a Toyota but I can't recall if it was the V8 or a 4 banger.

There was only 2 or 3 cars, so it was a really really small sample size and there wasn't say two of each car, just the one so who knows how it would have turned out if you expanded the study, but it was interesting none the less
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#10 Old 11-25-2012, 06:37 PM
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Originally Posted by chrishoyle534 View Post
what is the ultragauge?
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