2001 Jaguar XJ8L: MPG and fuel economy
The 2001 Jaguar XJ8L is rated by the U.S. Environmental Protection Agency at 18 combined MPG, with 15 MPG in the city and 22 MPG on the highway. That sits a little below the average car in the Midsize Cars class for the same model year.
This page collects every fuel-economy figure the EPA publishes for the 2001 Jaguar XJ8L. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- The most efficient car in the Midsize Cars class for the 2001 model year is the Saturn L100/200 at 24 MPG.
- EPA estimates this car costs around $8,500 more in fuel over five years than an average new vehicle of the same model year.
- Requires premium gasoline, which typically adds about 40 to 60 cents per gallon to the EPA's annual fuel cost estimate.
Fuel economy at a glance
These are the EPA's official ratings for the 2001 Jaguar XJ8L. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 18 MPG |
| City MPG | 15 MPG |
| Highway MPG | 22 MPG |
| Annual fuel cost | $3,850 |
| Tailpipe CO₂ | 494 g/mi |
| Fuel type | Premium |
How the 2001 Jaguar XJ8L compares
The 2001 Jaguar XJ8L returns 18 combined MPG. Cars in the Midsize Cars class for the same model year average 19.4 MPG, which puts this car behind the class average by about 7%.
The most efficient car in the Midsize Cars class for the 2001 model year is the Saturn L100/200 at 24 MPG. The bar chart below puts the Jaguar XJ8L alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 2001 model year (across all classes) returns 19.1 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 2001 model year is on its own page.
Annual fuel cost across driving patterns
The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for premium gasoline, which is $4.61/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.
The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 833.3 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $1,925 |
| Average driver, 15,000 miles per year | $3,850 |
| Heavy driver, 25,000 miles per year | $6,417 |
Year-over-year MPG for the Jaguar XJ8L
The EPA has rated the Jaguar XJ8L across 9 model years, from 1998 Jaguar XJ8L through 2009 Jaguar XJ8L. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
Combined MPG has stayed in roughly the same range across the run. The peak rating came with the 2005 Jaguar XJ8L at 19 MPG.
| Year | Combined MPG | Open year page |
|---|---|---|
| 2009 | 19 MPG | 2009 Jaguar XJ8L |
| 2008 | 19 MPG | 2008 Jaguar XJ8L |
| 2007 | 19 MPG | 2007 Jaguar XJ8L |
| 2006 | 19 MPG | 2006 Jaguar XJ8L |
| 2005 | 19 MPG | 2005 Jaguar XJ8L |
| 2001 | 18 MPG | this page |
| 2000 | 18 MPG | 2000 Jaguar XJ8L |
| 1999 | 18 MPG | 1999 Jaguar XJ8L |
| 1998 | 18 MPG | 1998 Jaguar XJ8L |
Compare against other Midsize Cars for 2001
If you are cross-shopping the 2001 Jaguar XJ8L, the most useful comparison is against the other cars in the Midsize Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
The Honda Accord leads this group at 25 MPG, 7 MPG ahead of the 2001 Jaguar XJ8L.
Specifications
The 2001 Jaguar XJ8L runs a 4-liter 8-cylinder engine paired with a automatic 5-spd, sending power through rear-wheel drive.
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Midsize Cars
- Engine
- 4L 8-cylinder
- Transmission
- Automatic 5-spd
- Drivetrain
- Rear-Wheel Drive
- Fuel type
- Premium
- Annual petroleum use
- 16.5 barrels per year
Common questions about the 2001 Jaguar XJ8L
Quick answers to the questions people most often search for when looking up the 2001 Jaguar XJ8L.
-
Is the 2001 Jaguar XJ8L fuel efficient?
It is in line with the rest of the class. The 2001 Jaguar XJ8L returns 18 combined MPG, and the average car in the Midsize Cars class for the same model year sits at 19.4 MPG. -
What MPG does the 2001 Jaguar XJ8L get?
The EPA rates the 2001 Jaguar XJ8L at 18 combined MPG, 15 MPG in city driving, and 22 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 2001 Jaguar XJ8L per year?
The EPA estimates an annual fuel cost of $3,850 for the 2001 Jaguar XJ8L. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
Does the 2001 Jaguar XJ8L require premium gas?
Yes. The EPA lists the 2001 Jaguar XJ8L as requiring premium gasoline. Running it on regular can reduce performance and may affect engine warranties, so it is not a recommended way to save at the pump. -
Has the Jaguar XJ8L become more fuel efficient over time?
Combined MPG has stayed close to flat across the run. Both the earliest (1998 Jaguar XJ8L, 18 MPG) and most recent (2009 Jaguar XJ8L, 19 MPG) versions sit in the same range. -
How much CO₂ does the 2001 Jaguar XJ8L emit?
Tailpipe CO₂ emissions are 494 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 7,406 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 2001 Jaguar XJ8L?
City driving returns 15 MPG and highway driving returns 22 MPG, a gap of 7 MPG. A spread that wide is typical of cars with conventional automatic or manual transmissions, where stop-start city traffic eats more fuel than a steady highway cruise. -
What engine is in the 2001 Jaguar XJ8L?
The 2001 Jaguar XJ8L has a 4-liter 8-cylinder engine. -
What transmission and drivetrain does the 2001 Jaguar XJ8L have?
The 2001 Jaguar XJ8L comes with a automatic 5-spd transmission and rear-wheel drive. -
How does the 2001 Jaguar XJ8L compare to the best car in its class?
The most efficient car in the Midsize Cars class for the 2001 model year is the Saturn L100/200 at 24 combined MPG. The Jaguar XJ8L returns 18 MPG, a gap of 6 MPG. If you are comparing on fuel economy alone, the class leader is worth a look.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.