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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 this awesome R/C car chase scene made with cardboard and glue

It never ceases to amaze us how much video production talent you can find on YouTube, especially when considering movies like Battleship actually exist on the silver screen. It's even better, of course, when cars are involved, which is why we can't stop watching this car chase between a pair of radio controlled Ford Mustangs.
Racing through a detailed set built in the middle of a public street using just "cardboard, hot glue and spray paint," this video is possibly even greater than The Greatest R/C Car Chase Ever that we saw last year. With the exception of a fruit stand and/or a plate-glass window being carried across the street, this has all the makings of a classic cliché chase scene.
Scroll down to watch the scaled-down action ensue as well as the full-scale conclusion.

Swedish car mag says Ford Mondeo is dangerously, illegally overweight [w/video]

Sweden's Teknikens Varld has a reputation for being very persnickety when it comes to auto safety testing, and its latest catch is the Mondeo Titanium Estate 2.0 TDCi 150 bhp S6 MPS (basically a station wagon variant of the Fusion). In addition to the model's mile-long name, it has another problem according to the Swedes, because its weight on the scales does not equal the official numbers for the vehicle. Teknikens Varld claims the wagon is dangerously overweight because it weighs in 4,145 pounds, while Ford officially lists its weight at 3,530 pounds. That 615-pound disparity means that if a family loads it to what they think is the model's gross vehicle weight, it will actually be too heavy, and therefore illegal to drive in Sweden. According to the magazine, when it tried doing this, the rear wheels scraped against the wells, and the estate failed the mag's legendary moose test. However, at 220 pounds over the limit, it passed the test. When reached for comment by Autoblog, Jay Ward, Senior Manager at Ford of Europe Product Communications, explained the reason for the deviation between the official numbers and the magazine's test: "We are aware of this, but this is not an issue that relates specifically to the safety of the Mondeo, but is in fact related to the way in which the cars are tested by the authorities. We provided an Ambiente model for the testing but the car that featured in the magazine test was a Titanium model which has a different weight. We are in discussion with the Swedish Transport Agency to change the framework so the real weight of the Titanium model is reported instead of the Ambiente model which will resolve the issue." Teknikens Varld is well-known for calling out automakers for perceived transgressions. Most recently it leveled criticisms against the all-wheel drive system in the Honda CR-V, and both the Jeep Grand Cherokee and Porsche Macan failed its moose test. Scroll down for the magazine's video of weighing the Mondeo Estate and the model's test results. This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. The new Ford Mondeo is dangerously overweight The new Ford Mondeo is a great car, which Teknikens Varld's test shows, but there is one problem – the weight. Mondeo weighs 279 kg more than Ford claims. With big load (ie family plus luggage) the car therefore becomes illegal to drive.