on 2040-cars

Auto blog

Ford finds flex-fuel engine design plays big role in emissions output

How bad is ethanol for your engine? There's been a lot of debate on this issue as the US considers upping the biofuel content in the national gasoline supply from 10 percent (E10) to 15 percent (E15). The ethanol industry and some scientists say higher ethanol blends show no "meaningful differences" in new engines while the oil industry says ethanol creates health risks. Researchers working at the Ford Research and Innovation Center decided to take a closer look at how a wide range of gas-ethanol blends - E0, E10, E20, E30, E40, E55 and E80 - affected the emissions coming out of a flex-fuel 2006 Mercury Grand Marquis. To see the full report, printed in the journal Environmental Science & Technology, requires payment, but there is an abstract and Green Car Congress has some more details. The gist is that, "with increasing ethanol content in the fuel, the tailpipe emissions of ethanol, acetaldehyde, formaldehyde, methane, and ammonia increased." At least NOx and NMHC emissions decreased. The researchers say that the effects are due to the fuel and "are expected for all FFVs," but that the way that a manufacturer calibrates the engine will affect NOx, THC, and NMOG emissions. It's this last bit that's important, since the researchers found, "Higher ethanol content in gasoline affects several fundamental fuel properties that can impact emissions. ... These changes can have positive or negative effects that can depend on engine design, hardware, and control strategy. In addition to direct emissions impacts, higher ethanol content fuel can also provide more efficient combustion and overall engine operation under part-load conditions and under knock-limited higher-load conditions." So, as we head towards more ethanol in our fuel supply (maybe), manufacturers are going to need to learn how to burn it most efficiently.

Junkyard Gem: 2007 Mercury Mariner Hybrid

Once hybrid vehicles from Honda and Toyota proved to work well in the real world of American streets during the early 2000s, other U.S.-market manufacturers climbed aboard the gasoline-electric bandwagon. Ford introduced the Escape Hybrid for the 2005 model year and sales proved quite strong; its Mercury-badged sibling, the Mariner Hybrid, appeared the following year. The Mariner Hybrid never induced many vehicle shoppers to sign on the line which is dotted, despite gasoline prices going absolutely ape in 2008, though it remained available all the way through the Mercury brand's 2010 demise. Here's one of those rare trucks, found in a Denver-area yard last month. The Escape/Mariner Hybrids got amazing fuel economy for tall, truck-shaped machines, though the serious penny-pinchers with long commutes skipped anything built in the 21st century and began driving up the prices of the once-scorned Geo Metro XFi, gas-sipping champion of the previous decade. The Mercury brand was on the ropes by this time, with not much to distinguish the once-distinctive Mercury machines from their near-identical Ford counterparts. The 1999-2002 Cougar was the last Mercury sold here with no twin brothers over in the Ford showrooms. I do see the occasional Escape Hybrid in places like this, though such gas-saving small SUVs tend to retain their value well enough that it takes a crash to retire one. This Mariner Hybrid hit something hard and either flipped on its side or scraped a guardrail for some distance. The airbags deployed and, presumably, spared the occupants from serious injury. That's the good news. The bad news is that fixing this kind of damage to a 13-year-old vehicle made by a defunct brand just isn't worth it to insurance companies, hybrid-electric powertrain or not. We can assume that the battery pack lives on in another Escape/Mariner. Navigation, Bluetooth, and other features that were considered pretty slick in 2007. This truck was in pretty good shape until the very end. Jill Wagner proved that you can bury a Mercury emblem in volcanic soil and it will grow into a brand-new Mariner Hybrid. That's how science works! You can go to the same field and tap on a Mercury emblem, if you want to get a regular gasoline Mariner. Featured Gallery Junked 2007 Mercury Mariner Hybrid View 20 Photos Auto News Green Mercury Automotive History Crossover SUV Hybrid mercury mariner mercury mariner hybrid Junkyard Gems

Fitting Retirement: Grand Marquis last Mercury off the line

The signs have come down and retail production ended back in October of 2010. Now, the very last Mercury model has rolled off the assembly line. This last Mercury somewhat fittingly takes the form of a Grand Marquis reporting for fleet duty. It was built at the St. Thomas plant in Ontario, Canada, which is the same facility that continues to produce the Ford Crown Victoria and Lincoln Town Car for fleet and livery duty.
St. Thomas' days are numbered, however, as the factory is slated to close on August 31. When it goes, the Panther platform is likely to follow. So long, and thanks for all the fish memories.
[Source: Autoweek]Read | Permalink | Email this | Comments