2002 Jaguar Xj8 Base Sedan 4-door 4.0l Automatic / Needs Engine Work on 2040-cars

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2014 Jaguar XJL AWD 3.0

A bit of British nobility floods the senses when piloting the 2014 Jaguar XJ. It's an emotional rush, a perception based on physical surroundings that influence the mind in much the same manner that a stein of pilsner tastes best when consumed in a German beer garden and no sand is softer than that found on a warm Caribbean beach. Jaguar has been assembling cars for nearly 100 years, and few automakers are as equally adept at capturing aristocracy and timelessness within the rich cabins of their luxury offerings.
Jaguar would have no concern if it were the only game in town, but that's far from the truth. The premium full-size luxury segment, which includes vehicles hovering just under or at the six-figure mark, is a contentious grouping that includes the Audi A8, BMW 7 Series, Lexus LS, Mercedes-Benz S-Class and Porsche Panamera. Each of those brings its own game to the battle, and none are easy to dismiss.
To better understand the British perspective and evaluate its latest offering on a land without royalty, I recently spent a week with a long-wheelbase, all-wheel-drive Jaguar XJ in Southern California.

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.

2017 Jaguar XE 20d Quick Spin

Base models rarely get their due in the press. Big-engine, high-horsepower variants get all the headlines, but the junior version is what sells in volume. We're just as guilty here at Autoblog, with both a first and second drive of the Jaguar XE in supercharged V6 guise, and barely a mention of the entry-level, 2.0-liter diesel. So, in Perd Hapley style, the Jaguar XE diesel is the model of the Jaguar XE we're going to discuss. Yes, the volume model of the Jaguar XE is a diesel, at least for now. A turbocharged 2.0-liter gas engine, wearing the 25t badge, will arrive after the XE's early 2016 on-sale date. Oil-burners and volume are not a thing in the United States, except for heavy-duty pickup trucks. Despite that apparent contradiction, the XE 20d could find some converts. Driving Notes The biggest clue to the engine's fuel source is the tachometer, which only counts to 6,000. But you wouldn't know from the fast throttle response or the way revs climb when you mash the accelerator. All 180 peak horsepower come at 4,000 rpm, and the 317 pound-feet of torque are available from 1750 to 2500 rpm. Really, this engine is smooth. Credit the low 15.1:1 compression ratio, which also helps make the engine's aluminum construction possible. The surge of power from the turbo builds steadily instead of kicking in all at once. Jaguar's engineers focused on friction reduction with a fanatical devotion, all in the name of efficiency. One key feature is the offset crankshaft. That is, the crankshaft is located to the side of the cylinder centerline. This reduces the side load forces during the firing cycle. In the manual transmission the gears are cupped to reduce mass. A pump sprays oil directly on the cogs, which cuts back on the total amount of fluid and cuts back on friction loss due to windage. No, the manual transmission isn't coming to the US. And yes, it's really good. Not just in the cliche journalist love for the diesel-manual combo, but objectively good. That smooth responsive nature of the engine is amplified when you get to choose your own gears. So we make due with the eight-speed automatic, the 8HP45 version of the ubiquious ZF box. The coolest trick here is a pendulum-style damper in the torque converter instead of a typical spring damper. When the torque converter is locked up this cuts down on torsional vibration between the engine and transmission. And that enables low-rpm cruising and higher mpg.