1974 Mercury Cougar Xr7 on 2040-cars

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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: 1981 Mercury Cougar XR-7

The story of the Mercury Cougar involves more plot twists and unexpected digressions than that of just about any other Detroit car, with successive Cougar generations based on the Ford Mustang (1967-1973), the Ford Torino and/or Thunderbird (1974-1979), various Fox Fords including the Thunderbird (1980-1988), the MN12 Thunderbird/Lincoln Mark VIII (1989-1997), and the Ford Mondeo (1999-2002). There were wagon and sedan Cougars for brief periods, just to confuse everybody, and the rakish XR-7 Cougars sometimes lived on different platforms from their ordinary non-XR-7 counterparts. I think the Late Malaise Era Fox XR-7s are among the most interesting of the bunch, so I was quite excited to spot this tan-over-gold '81 in a Denver yard. I tried to count the number of screaming-cat badges on and in this car and gave up once I hit a dozen. The steering wheel, door panels, C pillars, center console, and — of course — the hood ornament all boast snarling felines. Earlier Cougars had emblems showing full side views of stalking catamounts, but the Cougar logo for the 1980s showed just the head. This car got the optional center console, which I hear is quite a rarity. You had to pay $174 extra (that's around $513 in 2020 dollars) for an AM/FM/cassette audio system in the '81 Cougar, but at least the air conditioning was standard equipment. Believe it or not, thieves used to steal these radios. Kumpf Lincoln-Mercury still exists in Englewood (as Landmark Lincoln), and the yard that now houses this car can be found just 15 miles up Broadway on the north side of Denver.  The padded landau roof hasn't fared so well beneath the fierce Colorado sun, but overall this car seems very solid. Sadly, only the Mustangs and (once in a long while) Fairmonts get much love from the Fox Ford crowd these days. Three Mercury "wire wheel" hubcaps and one from a Lincoln. The base engine in the 1981 XR-7 was the "Thriftmaster" 200-cubic-inch (3.3-liter) straight-six, but very few XR-7 buyers would have refrained from checking the box for one of the two optional Windsor V8s. I can't tell if we're looking at the 255-cubic-inch (4.2-liter) version or the 302-cubic-inch (5.0-liter) one here, but real-world drivers might not have noticed the difference between the 120-horse 255 and the 130-horse 302, anyway. The non-XR-7 Fox Cougars had five-speed manual transmissions as base equipment (which nobody wanted), but all 1981 XR-7s had automatics.

Junkyard Gem: 1992 Mercury Grand Marquis LS

We've all been seeing the instantly familiar Ford Crown Victoria P71 Police Interceptor on North American roads for what seems like forever, though in fact the very first of the aerodynamic Crown Vics didn't appear until a mere 31 years ago. Yes, after more than a decade of boxy LTD Crown Victorias, Dearborn took the late-1970s-vintage Panther platform and added a brand-new, Taurus-influenced smooth body and modern overhead-cam V8 engine, giving us the 1992 Ford Crown Victoria. The rule was, since 1939, that (nearly) every Ford model needed a corresponding Mercury, and so the Mercury Division applied different grille and taillights and the rejuvenated Grand Marquis was born. Here's one of the first of those cars to be built, now residing in a Denver-area self-service boneyard. The Marquis name goes respectably far back, to the late 1960s and a Mercurized version of the Ford LTD hardtop. The Grand Marquis began life as the name for an interior trim package on the 1974 Marquis Brougham (also LTD-based), eventually becoming a model in its own right for the 1979 model year. Today's Junkyard Gem came off the Ontario assembly line in March 1991, making one of the very first examples built. For 1992 (and through 2011), the Grand Marquis was a Crown Victoria with slightly enhanced bragging rights. This one has the top-grade LS trim, with an MSRP of $20,644 (that's about $44,370 in inflation-adjusted 2022 dollars). The corresponding Ford-badged model (built on the same assembly line by the same workers) would have been the Crown Victoria LX, which actually cost a bit more: $20,987 ($44,910 now). The very cheapest civilian 1992 Crown Vic cost just $19,563 ($42,045 today). There weren't any powertrain differences between the Crown Victoria and Grand Marquis in 1992. The only engine available was this Modular 4.6 SOHC V8, rated at either 190 (single exhaust) or 210 (dual exhaust) horsepower. The transmission was a four-speed automatic with overdrive. How many miles are on this one? Can't say! Based on the worn-out interior, I'm going to guess 221,719 miles passed beneath this car's wheels during its 32-plus years on the road. I've seen some very high-mile Police Interceptors, of course, including one with 412,013 miles, but Ford didn't go to six-digit odometers in the Grand Marquis until a bit deeper into the 1990s. Thanks to flawed speech-to-text applications on smartphones, the Grand Marquis is known as the "Grandma Keith" to many of us today.