The Diesel V8's Fuel Economy So Far - 2016 Nissan Titan XD

2016 Nissan Titan XD Long-Term Road Test

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2016 Nissan Titan XD: The Diesel V8's Fuel Economy So Far

by Brent Romans, Senior Automotive Editor on September 29, 2016

2016 Nissan Titan XD

One of the key attributes of the new 2016 Nissan Titan XD is its available turbocharged 5.0-liter diesel-powered V8 engine. Aimed at shoppers who want more towing power than the typical gas V8 but don't want to pay a fully heavy-duty price, the Titan XD's Cummins diesel produces 310 horsepower and a hearty 555 pound-feet of torque.

This engine certainly adds some character to our Titan XD test truck, but we're particularly interested to see how its real-world fuel economy shapes up. Because of the XD's classification as a heavy-duty truck, the EPA does not provide fuel-economy estimates.

So how's it doing?

Well, we've averaged 14.7 mpg over the course of about 5,700 miles so far. We've yet to tow with our truck, so this number comes from the typical driving and commuting our staff does.

Is this good? Meh? "Unbelievably bad! Terrible!" as Trump might tweet? It's hard to say, because we've never had an EPA-classified HD truck in our long-term program before. We've had other heavies in for short-term road tests, however, and recorded their fuel economy on our 115-mile evaluation loop, which typically yields fuel economy in the vicinity of the EPA Combined figure. We've yet to do the same with our Titan, but here are the numbers for the Big Three diesels on that loop:

2015 Chevrolet Silverado 2500 diesel: 16.5 mpg
2014 Ram 2500 diesel: 18.2 mpg
2015 Ford F-450: 14.1 mpg

Again, these numbers aren't directly comparable to our Titan's, but they do suggest that the Cummins V8 has underperformed a bit thus far. We'll have to take King Banana out on our evaluation loop and see what's what.

Average Lifetime MPG: 14.7
Best Fill MPG: 17.5
Worst Fill MPG: 11.5
EPA MPG Rating: N/A
Best Range: 383.2 miles
Current Odometer: 5,748

Brent Romans, Senior Automotive Editor @ 5,748 miles

  • Full Review
  • Pricing & Specs
  • Road Tests (1)
  • Comparison
  • Long-Term

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