Back in January, when news broke that GM would be pulling its 2.8T V6 from the Cadillac lineup, I reckoned that
Cadillac needs to figure out if it wants to keep its SRX saddled to an underwhelming engine, or if it wants to add its widely-lauded 3.6 direct injection V6 to the SRX lineup.
And you know what? Cadillac made the right call (or at least the obvious one). But will GM seal the deal and drop the unloved 3.0?
Many equate China with smoke and soot belching cars. In reality, China’s emission and fuel consumption standards now generally follow the European roadmap. Implementation of standards trails the European role model by only a few years. Ironically, it is a European brand that just ran afoul of this misperception – if Chinese media is correctly informed. Read More >
If Chrysler’s five-year business plan were taken at face value, one might be forgiven for thinking we were supposed to have a four-cylinder, stop-start-equipped diesel Wrangler in the US by now. Not so, clarified Jeep’s bosses, while keeping the window open. Now Jeep CEO Mike Manley is hinting at diesels again, telling the Freep that the Wrangler and Grand Cherokee could get oil-burning engines “within three years,” and that
Diesel in some of our models makes absolute sense.
Europeans certainly seem to think so, as the vast majority of Jeep sales on the continent are diesel models. And no wonder: on the European test-cycle (non-EPA), the 3.8 liter gas-powered Wrangler (with manual) is rated at 15.5MPG city, 29 MPG highway and 22MPG combined, while the diesel 2.8 with manual and stop-start (offering less horsepower but more torque) is rated at 28.5MPG city, 36.2MPG highway and 33.1MPG combined (converted from l/100km figures). It might not be long before that kind of efficiency advantage becomes worth the $1k-$3k projected price premium (assuming the EPA test reflects an equal advantage).
It’s long been gospel among Porsche aficionados that Zuffenhausen will never turbocharge its mid-engined offerings, for fear they might wipe the road with the brand’s rear-engined flagship, the 911. But apparently the stricture against forced-induction Boxsters and Caymans only extends to the current generation. When the next round of mid-engined Porsches arrive in 2012, a turbocharged engine will definitely be offered… but only as the base model.
In the post-Veyron, post-Horsepower Wars world, “Responsible Performance” has been the catchphrase on the lips of every purveyor of performance cars. And with Audi and Nissan already set to brawl for EV sportscar niche that’s being abandoned by Tesla with the forthcoming end of production of its Roadster, diesel power seems to be benefiting from a second look by would-be “responsible performance” vendors.
Unsurprisingly, the tuning houses are promoting their diesel efforts, as EV tuning presents significant challenges to the ICE-based tuning community. And the BMW modifiers at AC Schnitzer are leading the way with this Z4 “99d,” a 188 HP, 310 lb-ft two-liter turbodiesel roadster capable of 146 MPH. Oh yes, and 99 grams of CO2 per Km, or (very roughly) 60-ish MPG (non-EPA). Sound like a healthy compromise between “responsibility” and performance? The only thing you’ll have to give up is the $210,000 that Automobile says this Schintzer concept would cost if it were built.
We love staying ahead of the curve with new engine technologies like the Ecomotors OPOC engine, but without an engineering degree it can be hard to tell the the posers from the next big thing. So when something like the Wave Disc engine comes along, we throw ourselves upon the collective wisdom of our Best and rightest to help us make sense of it. In the video above, the Wave Disc engine’s creator, Michigan State’s Norbert Muller, explains his invention and its benefits including simplicity, light weight and efficiency. And, he claims, the technology is close enough to reality to have a Wave Disc-electric hybrid within three years. Hit the jump for more technical details, and be sure to let us know if this is worth watching or just another engineering dead-end.
Read More >
The greatest thing about the Nissan Juke is its absolute peach of an engine, a 1.6 liter, direct-injected, turbocharged little screamer. In fact it’s such a wickedly fun little engine that it’s a shame it exists only in a polarizing vehicle like the Juke. To that end, I noted in my review of Nissan’s funky “sportcross” that
Without the marketers, it’s tempting to believe that Nissan’s engineers would have widened the Versa platform, added the fantastic turbocharged engine, and then decided to simply put a steroidal Versa body on top, creating the king of all B-segment hot hatches.
Well, according to this shot from China Car Times, at least part of that fantasy is coming true. In this first shot of an updated “2011/2012” Tiida (Versa), you can see the phrase “DIG Turbo” gracing its flanks, suggesting that the Juke’s little 188 HP mill (or, at least a detuned version of same) could be headed to the next-gen Versa. Does this mean a high-po “GTI”-style variant is coming to America’s best-selling B-segment car? Let’s hope so. Frankly, the more vehicles that get that feisty little engine, the better. [Awesome “Engine porn” video for Nissan’s 1.6 DIG Turbo after the jump]
Volkswagen’s long flirtation with Fiat’s Alfa Romeo brand has hit a few obstacles recently, as Fiat CEO Sergio Marchionne has been adamant that he won’t sell its money-losing brand to his European rival, saying
As long as I am CEO of Chrysler and Fiat, Mr [Ferdinand] Piech will never have Alfa Romeo. It’s hands-off. I told him. I will call him and I will email him. I’m not the one who bought Seat. He’s the one who bought it. I don’t know if he can [fix it], but he needs to try.
Which, as Bertel has pointed out, is a harsh burn: after all, VW may not be “winning the future” with its “Spanish Pontiac,” but at least it rescued SEAT from a struggling Fiat in the early 1980s. And now Herr Piech doesn’t want to take no for an answer, telling Autocar that it would fix Alfa up quick-smart. How? The same way VW might sex up its Audi brand: by using Porsche engines. Yes, really…
From Hybrids and plug-ins to direct-injection and HCCI, a number of new technologies hold the promise of ever-cleaner automobiles. But what if, by solving existing pollution problems with these new technologies, we create new pollution problems? That’s what the Health Effects Institute’s Special Committee on Emerging Technologies (SCET) looked into in its “Communication 16,” titled The Future of Vehicle Fuels and Technologies: Anticipating Health Benefits and Challenges [via GreenCarCongress, PDF here]. The findings? Gas Direct Injection (GDI) may improve efficiency, but particulate matter (PM) emissions are still a serious concern. Urea exhaust treatment systems for “clean diesel” engines
gives rise to concerns regarding the formation of nitrogen-containing compounds, including nitro-PAHs, in emissions and possibly other toxic compounds.
EVs have their own issues, including electromagnetic field (EMF) radiation and the possible introduction of battery materials into the environment through production or crashes. Both fuels with more than ten percent ethanol (E15, E20, E85) and biodiesel (B20) have not been sufficiently studied for exhaust pollutants. And even in “regular” gas, the use of metallic additives has not yet been fully tested for health risks. As a result of all of these untested effects of new automotive technologies, the HEI’s Research Committee will begin study of tailpipe emissions from vehicles using GDI, Urea exhaust treatment and biofuels, and will also study the toxicity of lithium and other battery components used in hybrid and electric vehicles. hopefully they’ll find that the cure isn’t worse than the disease…
Reader Josh sends in this semi-camo’d Explorer from the Mile High city, writing that
The lady who was in the drivethru at Wendy’s was quite frustrated to see us photographing her car (we stalked her for a few blocks to find a “compromising” position) and she jetted without even ordering. While I know this is default behavior among tester-types, in my experience, they really only panic if there is something really special.
But besides the bizarre hand-painted camo on the rear-quarter panel, we’re not seeing anything too different here from a stock Explorer. Is that funny-looking tailpipe exhausting the forthcoming “premium” 2.0 Ecoboost four-cylinder during high-altitude testing? Josh notes
the exhaust seemed tame and quiet – but we were in a v8 excursion
What say you, Best and Brightest?
Why don’t more mass-market brands offer diesel engine options? After all, the evidence suggests that the passenger cars that offer diesel options enjoy a healthy take rate for oil-burner engines. So would a brand like Ford ever consider bringing diesels to its US offerings? According to the Blue Oval’s Product Boss Derrick Kuzak, the answer is absolutely not. And, according to Automotive News [sub] he’s got an interesting reason for nixing a US-market diesel option.
With rising petroleum prices, one European journalist asked if Ford planned to alter its powertrain strategy and sell cars with diesel engines in the United States. The journalist mentioned that some European automakers offer diesels in the United States.
Kuzak said Ford “could easily bring diesels to the U. S. market.”
Then he quickly added: U.S. “customers, I think, are pragmatic.”
Too pragmatic for improved efficiency? Huh?
Read More >
TTAC’s resident gasket engineer, gimmeamanual, shares some thoughts on a previous Piston Slap. For starters, let’s go back to the original problem. In his own words:
In the last post, the OP says that they have tracked the leak to the interface between the block and the oil pan. He also mentions a “spacer” as well as RTV. The Duratec 3.0L (D30) engine variants have used two different gasket designs for the oil pan, but I can’t remember which for which years; one design uses metal-backed gasket referred to as an “edge-bonded” gasket (no groove on either the pan or girdle), and one design uses a “press-in-place” design (groove in the oil pan).
Fidgeting between multiple designs for something as “not customer facing” as an oil pan gasket isn’t a very smart move. Then again, perhaps one design is more cost effective, and not likely to draw attention to itself until well past the warranty period? Think about that, next time we talk Corporate beancounting. But wait, there’s more:
The D30 is a split-block design where the oil pan is attached to the girdle, which is in turn attached to the block; the oil pan also bolts into the bottom of the front cover. The block-girdle interface is indeed sealed with RTV, but the girdle-pan interface is sealed with a gasket. Sounds like the metal spacer he is referring to is the metal backbone of the edge-bonded design, but hard to tell without pictures. For the RTV, it’s unclear where this RTV is, but there is RTV at the block/girdle/pan-front cover interface at what is called a T-joint, so named because the vertical “seam” of the front cover-girdle/pan runs into the horizontal “seam” of the pan-girdle-front cover.
Clear as mud? Here’s the punchline:
Initial reports of a diesel version of the Chevy Cruze coming to the US market cited GM management sources who apparently told workers at the Cruze’s Lordstown, OH assembly plant they would begin building the diesel-powered Cruze for the 2013 model-year. But GM spokesfolks tell the Youngstown Vindicator.
GM has some of the most capable engineers in the world and very capable engineering in Europe. If and when the time comes, there is no doubt GM will be able to produce a diesel engine in America,
The implication being that a diesel Cruze is not imminent… but that doesn’t mean it will never happen. Local UAW boss Dave Green clarifies
I did see the report. I read where we may be getting some diesel-powered Cruzes, but we have not gotten word of that from our corporate offices
So… call the diesel Cruze a big maybe. At some point. Perhaps Chevy is waiting for the Cruze five-door to come online before making an all-out bid for America’s “Mr Euro” market with a diesel hatchback.
GM Inside News reports
Sources familiar with GM engineering were able to confirm to GMI that the diesel option is currently slated for the 2013 Cruze. The engineering sources also confirmed that the engine is a 2.0-liter with the RPO code of ‘LUZ.’ Power output or fuel economy figures are unclear at this time, however test mules of the Cruze diesel are operating now in metro Detroit.
In Australia the Holden Cruze CDX has a 2.0-liter diesel engine. In that application the car produces approximately 147 horsepower and 235 feet-pounds of torque. Converting from the Australian fuel economy figures, the Cruze CDX is rated at 34 miles per-gallon in combined driving. It is unclear if the same 2.0-liter diesel will be in the North American Cruze, but one is compelled to assume that will be the case.
Porsche’s greatest strength may well be that, in this era of automotive homogenization, it maintains its unique technical traditions. Until Subaru brought out a rarely-optioned 3.6 unit to market, Porsche was the only automaker who offered a flat-six engine, a powerplant that was both unique and traditional. But now, it seems that Porsche may have to give up its unique engines in the name of corporate strategy and its goal of remaining the world’s most profitable automaker [sub]. When asked by EVO magazine if, in the future, Audis could use Porsche’s brand-defining boxer-six engine, Porsche’s R&D boss Wolfgang Dürheimer responded
I think so, especially for the V8 side, but I can also see some applications for the Porsche flat-six and future flat-four engines across the VW group. I think it cannot hurt Audi to have a Porsche powerplant in its cars.
Yes, but what about Porsche? We’d heard a version of this rumor before, but this latest revelation seems to indicate that plans to share Porsche’s greasy bits are moving forward. Given that we’re moving towards the last hurrah of the internal-cumbustion engine, we’d hope that Porsche would hold onto its tradition of unique engines a bit longer. Apparently not.
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