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Xterra Nissan Xterra Discussion Forum

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Old 03-02-2019, 04:27 AM
godsbusy godsbusy is offline
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2007 Xterra
2007 Xterra
 
Join Date: Jun 2010
Location: Canada
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Default Terrible gas milage

I was wondering if anyone could help me with a problem I'm having regarding gas milage. I have a 2007 Xterra Off Road with an automatic transmission. The last few months I have been getting lousy gas milage (approximately 75 km / (46 mi per) 1/4 tank). I was previously getting somewhere around 100 - 115km /(62-71mi) for the same 1/4 tank.

I know it's winter - I live in Canada and it's cold so I expect worse gas milage in the winter - but I've never had it this bad. I've had no MIL codes. The truck seems to be running okay besides the bad milage.

I had a bit of a similar problem about 4 years ago, that was caused by blockage in the MAF area of the vehicle. When the problem was corrected - I was getting the same shitty milage and the dealership did an Idle relearn on the truck. Is this what I need to do again?

I have tried a fuel additive / cleaner to see if that would help, and it didn't do much.

Any suggestion?
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Old 03-03-2019, 12:16 PM
smj999smj's Avatar
smj999smj smj999smj is offline
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How many miles are on the spark plugs and are they NGK?
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Old 03-03-2019, 01:12 PM
godsbusy godsbusy is offline
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There are approximately 95K km or about 60K mi on the vehicle, and they are the original spark plugs.
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