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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.

Ringbrothers shows off Coyote-powered 1968 Mercury Cougar

We'll openly admit that not every SEMA build is our cup of tea. But this? A tastefully resto-modded 1968 Mercury Cougar with a 460-horsepower Ford Mustang V8? Yeah, this is right in our wheelhouse. Sadly, there was no in-pwerson SEMA show in 2020, so we missed out on gems like this one. SEMA or no SEMA, the aftermarket carries on, and co-owners Jim and Mike Ring of Ringbrothers (get it?) saw no reason to let their time and effort go to waste.  When they're not building wild customs (see: 1,100-horsepower 1972 AMC Javelin AMX) or more subtle showcases (such as this Cougar or their 1971 K5 Chevy Blazer build from 2018), the folks at Ringbrothers crank out factory reproduction parts, whether for old-fashioned restoration or modification purposes. While '60s muscle cars are recurring build subjects for the two, the Cougar was the first of its kind they tackled.  Keeping it in the family, Ringbrothers sourced a Ford 5.0-liter "Coyote" V8 and a 10-Speed Automatic (lifted from an F-150 Raptor, incidentally) for the build. They didn't stop with the driveline, of course. The suspension was overhauled with a little help from DSE and a set of HRE Series C1 C103 Forged 3-Piece wheels were thrown over upgraded brakes.  "We put our heart into each car we build, and this Cougar is no exception," Jim said. "The finished product is mild and classy, yet any enthusiast instantly knows it's not stock. I imagine this is what Mercury designers would have come up with if they were building the Cougar today." "While we couldn't bring the car to the SEMA Show, we hope it can be shown to the public soon," Mike said. "We had never done a Cougar before, so this was a fun build. I love working with new shapes and coming up with new ideas." There's plenty to appreciate about this Cougar apart from the mechanicals, too. The finish is Augusta Green Metallic (courtesy of BASF), which was a factory color in 1968. You may know it by another name: Highland Green. There are a few custom exterior touches, but they're quite subtle and styled to be period-correct. The interior was also restored and updated, and it's where you'll find the only thing we're not fond of: that big, fat truck shifter. Gearbox choices notwithstanding, it's a bit of an eyesore. But considering how gorgeous the rest is, we'll give it a pass.  Related Video:

NHTSA probing 2000-2003 Ford Taurus and Mercury Sable models over throttle issue

A potential issue with the speed control cable collar has got the 2003-20003 Ford Taurus and Mercury Sable under the spotlight of the National Highway Traffic Safety Administration. If the collar breaks it can cause the throttle to be stuck open.
The issue is limited to vehicles with the 3.0-liter V6 Duratec. There are just 50 complaints so far out of 310,000 cars, but the NHTSA has begun an investigation into whether a recall should be issued.