#CleanDiesel

General Motors’ diesel-powered midsize pickup trucks are the only midsize pickup trucks available in America with diesel engines. GM’s Chevrolet Cruze is the only compact car on sale in America with a diesel engine. Although the Mazda CX-5 is scheduled to arrive later this year, diesel-powered editions of the Chevrolet Equinox and GMC Terrain will be the first small utility vehicles with diesel options.

With all the negative diesel press earned largely by the eruption of Volkswagen’s emissions scandal in September 2015, is GM’s investment in America’s diesel market a complete and utter waste?

GM obviously thinks not. “I don’t think diesel customers forgot why they liked driving diesels in the last two years,” GM’s vice president for global propulsion systems, Dan Nicholson, tells Automobile. “They didn’t forget about the driving character or the fuel economy.”

Moreover, Nicholson says of the tens of thousands of former Volkswagen TDI owners, “We don’t think those customers went away.”

The U.S. federal indictment of Volkswagen engineer James Liang, stemming from the automaker’s effort to cheat on emissions testing of their supposedly “clean” diesel engines, mentions an as-yet unindicted co-conspirator, “Company A”.

That firm allegedly helped Liang and his team at VW develop the software routine that only activated emissions controls when vehicles were being emissions tested. Company A was identified in the indictment as a Berlin-based automotive engineering company that is 50 percent owned by the Volkswagen group, which is also Company A’s biggest customer.

When a self-described automotive journalist attempts a fuel economy record, you expect his attempt to be objective — or, at least, as objective as such an attempt can be.

However, when an automaker is willing to pay that automotive journalist thousands of dollars for the effort, with payment possibly dependent on achieving the desired record, objectivity falls by the wayside and, along with it, the credibility of someone believed to be a hero in high-fuel-efficiency circles.

Wayne Gerdes, if you aren’t familiar, owns a website called CleanMPG.com. It’s a forum dedicated to those squeezing every bit of fuel efficiency possible from their vehicles — also known as “hypermiling.”

Automotive journalist Gerdes set two records — in 2013 and 2015 — using Volkswagen TDI Clean Diesels. In doing so, the journalist lined his pockets with Volkswagen’s marketing cash.

Audi, a brand within Volkswagen Group that markets the majority of 3-liter diesel engines sold by the group in the United States, released a statement Monday detailing how it plans to fix vehicles that use a defeat device. The automaker also stated that three separate Auxiliary Emissions Control Devices — not just one — are used in 2009 and later 3-liter diesels used by Audi, Volkswagen (Touareg) and Porsche (Cayenne).

AECDs for those engines will “be revised, documented and submitted for approval,” Audi said in the statement.

Of the three AECDs, the EPA questioned the legality of a temperature conditioning procedure of the exhaust-gas cleaning system.

“One of (the AECDs) is regarded as a defeat device according to applicable US law. Specifically, this is the software for the temperature conditioning of the exhaust-gas cleaning system,” Audi said in a statement.

Arley writes:

Dear Sanjeev, [Oh, come on!!! —SM]

I have a ’03 Jetta 1.9-liter TDI. Do you know if the emission controls were tampered with on these models? If they are not part of the recall, am I to assume everything is as it should be? Resale value has dropped noticeably.

BT writes:

Why aren’t we seeing diesel/electric hybrid cars and light duty trucks? Wouldn’t the fuel economy be phenomenal? Gas hybrids do well in their own right, as do diesels. So what’s holding up the diesel/electric Passat? Many cities have gone to diesel/electric buses for fuel savings, so we know the technology is real for passenger vehicles. Is the combined torque simply too much for mere mortals to use responsibly?

What gives, Sajeev?

Why yes, it has been only three weeks since our last Volkswagen Golf feature story. Why do you ask?

Maybe it’s because the little VW is on fire. The car is nearly single-handedly bringing back hatchback sales with the introduction last year of its 7th generation model. Winner of numerous national and international auto journo awards, MkVII Golf sales in the U.S. are up 230% through June over the same period last year, and are tracking towards a record-setting 84,000 sales for 2015.

There are two 2015 Golfs in my driveway this week: my own two-door GTI 6-speed and today’s tester, the above four-door TDI SEL with the DSG dual-clutch automatic transmission. This is not a comparison test but the variation between the two cars’ equipment levels makes for some interesting perspectives.

Is clean diesel the cleanest diesel in the tub? Not as previously hoped, according to a new report.

Though hardly any of the offerings can be found in a brown wagon with a six-speed manual pushing power to the back, U.S. sales of clean-diesel vehicles have climbed up 25 percent this year.

A mix of good and bad news for fans of European forbidden fruit – the Audi SQ5 will be coming to our shores, but with the familiar 3.0T V6 rather than the Euro-spec TDI powertrain initially shown earlier this year. And I think that’s a big mistake.