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Subject Topic: Bad gas mileage Post ReplyPost New Topic
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Rubble
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Posted: May 21 2015 at 10:48pm | IP Logged Quote Rubble

gunner93 wrote:
Hey guys what's going on? I drive a 2010
nissan frontier Pro4x v6 with 78k on it.
My gas mileage has fallen really low
lately (around 11 mpg) and I don't know
what to do. I take care of my truck and
there is no check engine light. My buddy
thinks it's sparkplugs so I'm doing that
this weekend. Any help would be great.

Lot's of thing's can affect MPG:

Type of Tire's, Some Tire's hurt the MPG.  Low Tire Air Pressure.  Dirty  Air Filter.  Heavy use of  Gas Pedal, & Brake Pedal.  Oxygen Sensor like previous posting.  Modification's that affect Aerodynamic Airflow.  4wd's don't get as good MPG's,  as 2wd's usually.   

If your engine is useing too much Oil,, the Cat's can get restricted,, and that will cause less MPG's. 

For the most part,, I've found that keeping the Truck & Engine as Close to stock as possible, as well as keeping up with the Maintenance Schedule,, is about the most that an owner can do for optimum MPG's,, and Vice Versa,, the more Mod's that are done,, the worse the MPG's usually get.

Has the Maintenance Schedule been kept up to snuff?

On my '13 SVV6, I'm getting right @ about 20.5 MPG in Mixed Driveing, Maintenance is up to snuff, easy on Gas & Brake Pedal, Shell Regular.

Good Luck,, and let us know if you find the problem.



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2013 SVV6 Frontier KC/AT/2WD;'93 I4 Hardbody KC/AT/2WD 20yrs, Sold.
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perica91
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Posted: Jan 18 2016 at 5:19am | IP Logged Quote perica91

I don't feel quite so bad now after reading some of the other posts. I have been disappointed w/ my new Frontier. Love the truck, but the 4 cyl is only getting about 17mpg in mixed driving. I try to stay off the pedal, and it will increase to about 19 mpg in mixed if I'm really careful. I only have 2,000 miles on the truck so far, though, so it's not really broken in yet. I've followed all the directions so far, so hopefully things will get better. Wishing I got the 6 cyl now.

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Rubble
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Posted: Jan 19 2016 at 2:55am | IP Logged Quote Rubble

perica91 wrote:
I don't feel quite so bad now after reading some of the other posts. I have been disappointed w/ my new Frontier. Love the truck, but the 4 cyl is only getting about 17mpg in mixed driving. I try to stay off the pedal, and it will increase to about 19 mpg in mixed if I'm really careful. I only have 2,000 miles on the truck so far, though, so it's not really broken in yet. I've followed all the directions so far, so hopefully things will get better. Wishing I got the 6 cyl now.

Hey Perica,

I drove a '93 KC 4cyl AT 2WD for 20 year's.  IMO they engine is a good one and has a timeing chain.

Your's has more pulling power than the '93 that I had and as long as you don't go over 3500 lb's towing,, I think that you'll do fine.

I have to pull about 4k lb's sometime's, so I needed more pulling power.  Still I almost had to settle for a 4cyl again,, but was persistent and able to get a good deal on a 6cyl KC AT.

When it come's time to get another Truck, before you sell the Nissan,, talk to Nissan Consumer Affair's and they'll probably give you a VPP, which is a discount on a New Nissan Truck.  It's like a Loyalty discount.  They gave me one,, and it really made the difference in me being able to get a new truck.

Good Luck



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Posted: Jun 01 2017 at 7:33am | IP Logged Quote DavidLar

perica91 wrote:
I don't feel quite so bad now after reading some of the other posts. I have been disappointed w/ my new Frontier. I love this review of the bathmate x50 but the 4 cyl is only getting about 17mpg in mixed driving. I try to stay off the pedal, and it will increase to about 19 mpg in mixed if I'm really careful. directions so far, so hopefully things will get better. Wishing I got the 6 cyl now.



I get about 14mpg. Pretty suck right?
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Rubble
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Posted: Nov 18 2017 at 7:01pm | IP Logged Quote Rubble

Another thing that will affect MPG is the Rear end Gear
Ratio.

On my '13 v6 AT 2wd the rear axle ratio is 1.937. That's
the best stock gear ratio for best MPG that I know of in
the Nissan Frontier V6 truck.

I have switched from 87 octane to 89 now,, because the
Service advisor said that it is better for the valve's.
After switching it may have helped the mpg more,, but I
haven't done an average mpg yet. It hasn't hurt the mpg,
and it has a little bit more power maybe. My last
average was 20.4 mpg. I'm hopeing that it will be a
little bit higher next time.

But for the most part, the 4wd have a much higher rear
axle gear ratio, that hurt's their mpg for sure, as well
as those that use the brake's a lot,, and have a heavy
foot on the gas pedal.

For all the one's that got 4wd, I sure hope that they
need it,, because they'll be paying more in gas when they
drive it.

Takeing off fast,, brakeing hard for traffic light's and
following too close is a mpg disaster, no matter what the
rear axle gear ratio is though.

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