When you think of Porsche, a diesel engine may not be the first thing that comes to mind. However, luxury midsize SUV shoppers will have that option in September when the 2013 Porsche Cayenne Diesel hits showroom floors.

“The Cayenne Diesel, the first diesel powered vehicle ever offered by Porsche, was originally introduced to the Diesel-dominated European market in 2009,” Porsche says in a press release. “This same clean diesel technology now comes to the United States, joining the Cayenne, Cayenne S, Cayenne S Hybrid and Cayenne Turbo models.”

A turbocharged 3.0-liter V6 engine will power the new Cayenne Diesel, which is the same engine found in the Volkswagen Touareg diesel and Audi Q7 diesel. However, with 240 horsepower, the new Cayenne generates 15 more horsepower than those SUVs. In all three vehicles, the diesel engine produces 406 pound-feet of torque. The turbodiesel V6 is mated to an eight-speed automatic transmission and standard all-wheel drive.

Porsche estimates that the Cayenne Diesel will go from 0 to 60 mph in 7.2 seconds with a top speed of 135 mph. Fuel economy averages aren’t available yet, but Porsche surmises the diesel-powered Cayenne will be able to travel up to 740 miles on a single tank of fuel. In comparison, the EPA reports that the base 2012 Cayenne with an automatic transmission can go 383 miles on each tank of gas.

So far, auto journalists think the new engine will work well in the Cayenne. Car and Driver writes, “We quite liked this powertrain as installed in our long-term Audi Q7 TDI, so with the added power, lower weight, and Porsche-tuned chassis, this Cayenne should be even more pleasant.”

Full specs have yet to be announced, but the 2013 Porsche Cayenne Diesel will start at $55,750 plus a $975 destination fee when it goes on sale in September. That’s about $7,550 more than the base 2012 Cayenne, but also $13,250 less than the Cayenne S Hybrid.

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