This page collects every fuel-economy figure the EPA publishes for the 2013 Porsche Cayenne Diesel. 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

  • Returns 35% better combined MPG than the average car in the Standard Sport Utility Vehicle 4WD class for the 2013 model year (17.1 MPG class average).
  • The most efficient car in the Standard Sport Utility Vehicle 4WD class for the 2013 model year is the Toyota Highlander Hybrid 4WD at 28 MPG.
  • EPA estimates this car costs around $6,750 more in fuel over five years than an average new vehicle of the same model year.

Fuel economy at a glance

These are the EPA's official ratings for the 2013 Porsche Cayenne Diesel. 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 23 MPG
City MPG 20 MPG
Highway MPG 29 MPG
Annual fuel cost $3,500
Tailpipe CO₂ 445 g/mi
Fuel type Diesel

How the 2013 Porsche Cayenne Diesel compares

The 2013 Porsche Cayenne Diesel returns 23 combined MPG. Cars in the Standard Sport Utility Vehicle 4WD class for the same model year average 17.1 MPG, which puts this car ahead of the class average by about 35%.

The most efficient car in the Standard Sport Utility Vehicle 4WD class for the 2013 model year is the Toyota Highlander Hybrid 4WD at 28 MPG. The bar chart below puts the Porsche Cayenne Diesel alongside the class best and the class average so you can see the full picture.

For broader context, the average new car of the 2013 model year (across all classes) returns 23.4 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 2013 model year is on its own page.

2013 Porsche Cayenne Diesel
23 MPG
Class average, 2013
17.1 MPG
Class best, 2013
28 MPG
Average new car, 2013
23.4 MPG

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 diesel, which is $5.40/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 652.2 gallons (the car's annual consumption at the rated MPG).

Driving pattern Estimated annual fuel cost
Light driver, 7,500 miles per year $1,750
Average driver, 15,000 miles per year $3,500
Heavy driver, 25,000 miles per year $5,833

Year-over-year MPG for the Porsche Cayenne Diesel

The EPA has rated the Porsche Cayenne Diesel across 4 model years, from 2013 Porsche Cayenne Diesel through 2016 Porsche Cayenne Diesel. 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, hovering close to 24 MPG.

Year Combined MPG Open year page
2016 24 MPG 2016 Porsche Cayenne Diesel
2015 23 MPG 2015 Porsche Cayenne Diesel
2014 23 MPG 2014 Porsche Cayenne Diesel
2013 23 MPG this page

Compare against other Standard Sport Utility Vehicle 4WD for 2013

If you are cross-shopping the 2013 Porsche Cayenne Diesel, the most useful comparison is against the other cars in the Standard Sport Utility Vehicle 4WD 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 Toyota Highlander Hybrid 4WD leads this group at 28 MPG, 5 MPG ahead of the 2013 Porsche Cayenne Diesel.

Specifications

The 2013 Porsche Cayenne Diesel runs a 3-liter 6-cylinder turbocharged engine paired with a automatic (s8), sending power through all-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
Standard Sport Utility Vehicle 4WD
Engine
3L 6-cylinder turbocharged
Transmission
Automatic (S8)
Drivetrain
All-Wheel Drive
Fuel type
Diesel
Annual petroleum use
15.5 barrels per year

Common questions about the 2013 Porsche Cayenne Diesel

Quick answers to the questions people most often search for when looking up the 2013 Porsche Cayenne Diesel.

  • Is the 2013 Porsche Cayenne Diesel fuel efficient?
    Yes. The 2013 Porsche Cayenne Diesel returns 23 combined MPG, which beats the average car in the Standard Sport Utility Vehicle 4WD class for the same model year by about 35%.
  • What MPG does the 2013 Porsche Cayenne Diesel get?
    The EPA rates the 2013 Porsche Cayenne Diesel at 23 combined MPG, 20 MPG in city driving, and 29 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 2013 Porsche Cayenne Diesel per year?
    The EPA estimates an annual fuel cost of $3,500 for the 2013 Porsche Cayenne Diesel. 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.
  • What fuel does the 2013 Porsche Cayenne Diesel use?
    The EPA lists the 2013 Porsche Cayenne Diesel as running on diesel. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity.
  • Has the Porsche Cayenne Diesel become more fuel efficient over time?
    Combined MPG has stayed close to flat across the run. Both the earliest (2013 Porsche Cayenne Diesel, 23 MPG) and most recent (2016 Porsche Cayenne Diesel, 24 MPG) versions sit in the same range.
  • How much CO₂ does the 2013 Porsche Cayenne Diesel emit?
    Tailpipe CO₂ emissions are 445 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 6,675 kilograms of CO₂.
  • What is the difference between the city and highway MPG of the 2013 Porsche Cayenne Diesel?
    City driving returns 20 MPG and highway driving returns 29 MPG, a gap of 9 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 2013 Porsche Cayenne Diesel?
    The 2013 Porsche Cayenne Diesel has a 3-liter 6-cylinder turbocharged engine.
  • What transmission and drivetrain does the 2013 Porsche Cayenne Diesel have?
    The 2013 Porsche Cayenne Diesel comes with a automatic (s8) transmission and all-wheel drive. All-wheel-drive variants typically read 1 to 3 MPG lower than the front-wheel-drive equivalent of the same engine, since the extra hardware adds weight and parasitic loss.
  • How does the 2013 Porsche Cayenne Diesel compare to the best car in its class?
    The most efficient car in the Standard Sport Utility Vehicle 4WD class for the 2013 model year is the Toyota Highlander Hybrid 4WD at 28 combined MPG. The Porsche Cayenne Diesel returns 23 MPG, a gap of 5 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.