http://www.edmunds.com/insideline/do/Dr ... eId=116192

"Mercedes sees diesel engines as a perfect match for larger vehicles, rivaling the performance of gasoline engines and, now, nearly able to match their cleanliness. Even so, the 320 CDI won't meet California emissions standards, which are among the strictest in the world, and therefore is relegated to 45-state status.

But beginning in early 2007, Mercedes will offer the 3.0-liter Common rail Direct Injection (320 CDI) V6 engine in both the full-size GL and midsize ML (which goes on sale this October) SUVs. Neither will be sold in California, Maine, Massachusetts, New York or Vermont — the five states abiding by the standards.

This is not the über-clean Bluetec diesel engine that will also debut this year in the E-Class sedan and will be 50-state legal. The CDI engine uses a Variable Nozzle Turbo (VNT) to produce 224 horsepower at 3,800 rpm and 376 pound-feet of torque at 1,600 rpm. It also utilizes a particulate filter to virtually eliminate the black soot clouding your judgment about older diesel engines. The maintenance-free filter cuts particulate emissions by 99 percent. Even better, Mercedes claims the CDI engine is good for a combined fuel economy rating of almost 24 miles per gallon in the GL."

_________________
The folks: 2006 Liberty CRD Limited, Lt. Khaki (picked up 7/21/06 w/ 300 miles). Rotella 5W-40.

And: 1995 Grand Cherokee 4.0 Laredo, Silver, Selec-Trac, custom free-flow exhaust by local shop.

Me: 1998 Subaru Outback AWD, 2.5 DOHC, 5-speed manual. Nearly 170k miles & runs awesome.