'96 Pathfinder - 16.9 mpg - Pathetic!

@Albin

I had a 97. It was a very good driver, very comfortable. I somehow got mine up to 21-22 mpg. I kept them aired up probably around 35.

I stayed with stock tire size and ran highway tires, not even all terrains. Mine may have had narrower tires than some. It did well in snow.

The biggest thing I did was to install warn manual locking hubs on the front axles. It was rather easy to do. This allowed the entire front half of the drivetrain to sit still without being a parasitic drag. I drove 400 miles a week, and it paid for itself back then in 6 months.

Synthetic transmission fluid, synthetic fluid in rear diff and transfer case. Back then they used dino fluids. Synthetic ended up improving it a total of 1 mpg after everything but the front diff (which was no longer active much) was done.

Ps. I’ve seen these last a very long time, well over 250k with basic maintenance. Keep an eye on the exhaust headers, they can develop hairline cracks and it will sound like a valve tap.
 
You’re right in the ball park. My ‘02 QX4 with the VQ35DE got about 16mpg on a flat road with a slight tailwind going 75MPH pretty consistently over the 100k miles I had it. The VG33s were worse. If it were me, i wouldn’t worry too much. Do the maintenance others have recommended here, log your fuel mileage over time and enjoy the Pathfinder.
 
As with the very similar Toyota 4-Runner, fuel economy sucks in tandem with weak acceleration.
Just the nature of the beast.
What more did you expect?
 
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