1974 Jaguar Xke Base 5.3l on 2040-cars

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The diesel premium in our Jaguar XE quickly pays for itself

Our long-term 2017 Jaguar XE 20d AWD recently returned from a 2,000-mile road trip. My wife and I took a few days to visit her family in Auburn, Alabama, and it was the first real chance anyone has had to stretch the Jaguar's legs outside of Michigan. It was also a good opportunity to see what sort of fuel economy I could wring out of the XE's 2.0-liter turbocharged diesel. The diesel engine was the main reason I chose it over our equally lovely long-term 2017 Audi A4. For me, chasing fuel economy is a great way to stay focused on the road. The XE 20d AWD is rated at 30 city/40 highway and 34 combined. The drive to and from Auburn is almost entirely highway, so I knew matching the highway rating would be easy enough. The XE has a 14.8 gallon tank, so I was looking at a minimum of 600 miles per tank and four fills for the trip, counting the initial pre-departure fill. I had two main concerns: first, this was a new route, so I didn't know how available diesel would be along I-75; second, crossing the Appalachian Mountains was going to severely cut into my overall average. The first worry turned out to be a nonissue, especially as we went further south. Not once was I forced to go from station to station looking for a lone green-handled pump. People in the South love their Cummins, Powerstroke, and Duramax-powered trucks, meaning diesel pumps were plentiful. Rolling up in a Jaguar does garner attention, though. An older gentleman even asked if I knew that I was putting diesel in the car. It seems he didn't have much faith in my reading comprehension skills. The mountains were more of a problem. There was literally no getting around them, but were west of the highest parts, so it could have been worse. The indicated fuel economy dropped by 4 mpg on the way up, from 47 mpg to 43. Still, I managed more than 650 miles from a tank, though I was starting to push my luck. We filled up for the short final leg. By the time we rolled into Auburn, the display indicated 44 mpg – pretty damn good, I'd say. It held there for the entire trip. Calculating the actual mileage revealed the computer was generous by 2 mpg, but that's par for the course. Few automakers display precise numbers. The relative ease of getting this sort of fuel economy was complemented by the price of diesel. At each one of my four stops, diesel cost less than premium, the required fuel in all of the XE's gasoline engines. According to AAA, the same is true nationwide.

Jaguar envisions future without V8 engines

With tighter emissions and fuel economy regulations looming, Jaguar may have to do more than make a small, fuel-efficient hatchback to lower its model range's consumption figures - it also might give up its venerable V8 power, Drive reports. But not anytime soon, says Steven de Ploey, Jaguar's product and marketing director, who recognizes that the V8 can be replaced only by something that offers the same, or better, performance. But he has a word of caution: "We are not wedded to V8s."
In the meantime, de Ploey says there are other ways to reduce emissions. One of the first steps Jaguar could take is to shift away from the use of superchargers, which aren't as good as turbochargers at maintaining efficiency and making power. But he adds that supercharging still is "at the heart of Jaguar's performance proposition," and that the company has addressed the current downsizing trend by "replacing our naturally aspirated V8 with a 3.0-liter supercharged V6."
Consider one of de Ploey's comments on the cancelled C-X75 supercar (pictured) for some clue about Jaguar's future: "Some of the stuff we have already exploited to the extreme in the C-X75 is the kind of thinking for us and is an essential test bed to see how we could evolve from today to something that is sustainable in the future."

Jaguar's XF diesel isn't just fuel efficient, it's the cheapest XF available

Jaguar announced the 2017 Jaguar XF will now offer the 2.0-liter turbocharged diesel the company introduced on the XE. In addition to returning an impressive 42 miles per gallon on the highway and 31 in the city, the diesel is the cheapest XF available at $48,445. This means that picking the oil-burner will save you $3,040 over the cheapest gas V6 version, which only manages 29 mpg on the highway and 20 in the city. With 180 horsepower, the diesel is significantly down on power compared with the base V6 model. As a result, the diesel moves slower. Jaguar estimates the base V6 is good for a 5.2-second 0-60 time and the diesel should be able to do the same in 8 seconds. However, that's the only real downside. Even with the slower acceleration times, the diesel still has a very usable 317 lb-ft of torque available from 1,750-2,500 rpm. Based on our test drive of a diesel-equipped XE, the engine also breaks the old diesel stereotypes. It's both quite smooth and responsive. Unless you seriously need that straight-line performance, the Jaguar XF diesel arguably makes the most sense. It provides significant price savings and better fuel economy. The diesel XF also joins the XE and F-Pace diesels, leaving just the XJ and F-Type as the only Jaguars without compression-ignition engines. The British automaker is planning to remedy that, as a Jaguar Land Rover executive said the company plans to also add a diesel XJ variant in the US, even in the wake of the VW diesel scandal. Related Video: Related Gallery 2016 Jaguar XF: Review View 24 Photos Image Credit: Jaguar Land Rover Green Jaguar Diesel Vehicles Luxury Sedan jaguar land rover ingenium