2009 Porsche Cayenne GTS (Manual 6-spd) MPG & Specs
Quick answer
The 2009 Porsche Cayenne GTS gets an EPA-estimated 11/17 MPG (city/highway) and 13 MPG combined, with an estimated $5,850/year fuel cost and 683.615 g/mi CO₂. Engine: 4.8 L 8-cyl.
The 2009 Porsche Cayenne GTS with the 4.8-liter 8-cylinder premium gasoline engine returns an EPA-estimated 11 MPG in the city and 17 MPG on the highway, for a combined 13 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 4.8 L 8-cyl |
| Transmission | Manual 6-spd |
| Drive | 4-Wheel or All-Wheel Drive |
| Fuel type | Premium Gasoline |
| Vehicle class | Sport Utility Vehicle - 4WD |
| MPG — city | 11 |
| MPG — highway | 17 |
| MPG — combined | 13 |
| Annual fuel cost* | $5,850 |
| CO₂ tailpipe | 683.615 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 13 MPG, the 2009 Porsche Cayenne GTS sits in the low range for fuel economy. That is roughly 25% thirstier than the typical Sport Utility Vehicle - 4WD of its era (17 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $5,850 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 2009 Porsche Cayenne GTS. Over five years that is roughly $29,250 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 2009 Porsche Cayenne GTS emits approximately 683.615 grams of CO₂ per mile at the tailpipe. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.