1978 F250 Camper Special - Mint Condition on 2040-cars

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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.

Ford going bonkers at SEMA with 57 showcars

Ford always shows up in force at the SEMA Show, but this year's tally of 57 custom-tuned cars, trucks and vans is more than we can ever recall the Blue Oval bringing. Ford will introduce 28 of its project vehicles in its "Dreamcase" ahead of next month's show. The first batch of eight you'll find here with the remaining vehicles trickling into public view over the next couple of weeks.
This first group of cars includes a Fiesta, four Fiesta ST hatchbacks and a trio of Mustang show cars styled and tuned to varying degrees all by different aftermarket companies. Tanner Foust, Nitto Tire, 3dCarbon and Ice Nine Group are some of the more familiar names affixed to these cars. Our favorite so far is the Hollywood Hot Rods Mustang convertible (shown above) with its removable aluminum top and methanol-injected, 750-horsepower 5.0-liter V8.
Scroll down for all the details on these Fiestas and Mustangs, and stay tuned for more info on Ford's SEMA line, which will include custom versions of the Focus ST, Fusion, Transit Connect, F-150 and Super Duty.

This Or That: Fiat 500 Abarth vs. Ford Fiesta ST [w/poll]

They're pretty darn similar. And yet our views are oh so different.
If you guys could read the transcripts of our editors' chat room, you'd know that we're a pretty argumentative bunch. It's always good-spirited stuff (well, usually), but when we're not obsessively covering this or that, we're usually fighting about one car being better than another. We're all enthusiasts here, and our automotive tastes run the gamut from the weird and unusual to the decidedly mainstream - we all feel strongly about specific cars in a given segment. While it usually makes for good conversation, if we're passionate enough, it can turn into a tomato-throwing showdown.