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The tricky business of octane, power, and MPG

Given tepid green-car sales numbers this year, consumers in the US aren't making the transition away from internal combustion engines too quickly. Regulations are still mandating cleaner emissions, though. In addition to downsizing and turbocharging, there's growing consideration about moving to higher-octane fuel to improve overall efficiency. In a new report, engineers at FCA, Ford and General Motors Powertrain are showing that it could work, too. The major advantage to higher-octane fuel is that it supports higher compression ratios. That in turn can lead to more power from burning the same amount of gas. "Higher ethanol content is one available option for increasing the octane ratings of gasoline and would provide additional engine efficiency benefits for part and full load operation," the researchers write in the study's abstract. The authors even think it could be possible to update some modern vehicles' engine calibration to be optimized for the better gas. While the benefits are there, we still have a long way to go before higher-octane fuel becomes a national standard. According to Green Car Congress, 87 percent of the gas sold in the US is regular grade 87-octane. Meanwhile, premium 91-93 octane makes up just 10 percent. The various grades of fuel illuminate even more annoyances with the current system. For example, Ford generally recommends 93-octane for EcoBoost engines, and the power outputs that the company publishes are based on using it. However according to Green Car Reports, such premium gas is very difficult to find in some regions of the US, especially along the West Coast. The powertrains still run on lesser grades but with lower power output. The researchers' discussion of possibly increasing ethanol in gas also comes during a heated debate on the substance. The current administration is pushing for less of the corn-based fuel in the coming years. Although, several presidential hopefuls might be favor of reversing that course.

Watch how Ken Block spent his weekend in Barbados

Regardless of what you think of his skill as a racer, Ken Block is an expert showman. At this point, he has a career of showing up around the world to do vehicular stunts, and he's still able to go racing as well. It's a pretty sweet niche to carve out. Recently, Block was in Barbados to participate in Top Gear Live and the first event of the Global Rallycross Championship season, and Ford Racing produced a short video to show off his exploits.
It looked like a great show. Block got to race Lewis Hamilton in a Mercedes-Benz Formula One car and had a very weird crash during a Rallycross race that put his Ford Fiesta on its roof. Top Gear also released an extended look at Block and Hamilton's spectacle with the two of them expertly sliding around. Scroll down to watch the videos and get a taste of Block's tropical racing adventure.

These Canadians somehow forgot how to drive in snow

Montreal drivers experienced a slow-motion pileup on their streets this weeks thanks to the first snow fall of the season. According to the CBC, slippery conditions caused a small pileup involving cars, buses and even a street clearing vehicle. Onlookers in neighboring office buildings watched as vehicle after vehicle slid down Cote du Beaver Hall and crashed into the scrum of waiting cars. First there was a city bus, then a white Ford F-150 work truck loaded down with ladders, then another city bus came along and sandwiched the poor F-150. A Montreal Police Charger then came down the hill backwards, hit the bus in a slow, sad crash before it was crashed into by an out of control plow truck. Since its posting yesterday, the video of the crash has gone viral. Various other vehicles–a green-topped Scion delivery truck and a couple workaday sedans–were lucky enough to escape the pileup, but still suffered through a white-knuckled slippery descent down the hill. Colin Creado, who works nearby the crash site, told the CBC although it was pretty slippery, he was surprised at all the carnage since the storm was forecast well in advance. "You would have thought ... they would have salted the area or at least cordoned it off, because that road is pretty steep," he told the station. Related Video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. News Source: CBC Auto News Weird Car News Dodge Ford Driving Safety Truck Commercial Vehicles Police/Emergency Sedan snow montreal winter driving