Auto blog

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.

2014 Ford Fiesta ST

Concentrated ST Formula Proves Just As Potent
I'm not the jealous type... usually. But I will fully admit to being somewhat of a Pouty Polly when I read executive editor Chris Paukert's report after driving the then-new 2013 Ford Focus ST through the impossibly pretty southern French Alps region last June. I feel like a broken record saying this yet again, but hot hatchbacks hold a special place in my heart. And while I'm always giddy to drive any sort of small, turbocharged three- or five-door at home in Detroit, my jealousy was indeed piqued after hearing Paukert tell about the challenging yet breathtaking roads he encountered while driving the flamin' yellow Focus. You know, the sort of roads that, from above, look like carelessly drizzled lines of icing on the frosted Alpen caps.
Several months later, I found myself piloting a Focus ST just west of metro Detroit, pitting it head-to-head against one of Autoblog's perennial favorite cars, the Volkswagen GTI. It was fantastic - enough so that I fully stand behind my statement that in terms of balls-out performance, the Focus ST cannot be beat as far as today's front-wheel-drive hatches are concerned.

8 new cars that are selling below MSRP

Car shopping has been a frustrating activity for many people in recent years, as strained new car inventories have led to markups and elevated prices across the board. It’s been difficult to find vehicles at anywhere near a reasonable price, and some in-demand models are still listed at a premium today. iSeeCarsÂ’ most recent study looked at several aspects of the new and used vehicle markets and found a handful of models that are selling at a discount – a rarity in todayÂ’s world. Most of the vehicles selling below MSRP in October were electric, though the Nissan Armada and Infiniti QX80 made the top eight. To be clear, weÂ’re not talking about huge discounts here – the Kia EV6 was selling with the largest discount of 3.1%. The other models on the list include: Kia EV6: -3.1 percent off MSRP Ford F-150 hybrid: -2.8% Hyundai Ioniq 6: -2.7% Nissan Armada: -1.8% Hyundai Ioniq 5: -0.9% VW ID.4: -0.6% Kia Niro EV: -0.3% Infiniti QX80: -0.2% Electric and hybrid vehicles like the Kia and Ford have been selling at a premium for a long time, as they experienced stronger than expected demand and had challenging early production runs. That theyÂ’re now selling at a discount could indicate wavering buyer demand, but itÂ’s too early to start sounding any serious alarm bells. Though some models are getting cheaper, the industry average is still heading in the wrong direction. The average MSRP of new cars sold last month was $42,510, while the average sales price was $46,077. That 8.4% overage is surprising to see so many months after the worst of the pandemic has passed. iSeeCarsÂ’ executive analyst Karl Brauer had a few words of encouragement, however, saying, “There are still very few ‘dealsÂ’ in the new car market. Shoppers looking to pay below MSRP for a new car will have to do their research, but a small number of models can be bought below sticker price.” Green Ford Hyundai Infiniti Kia Nissan Volkswagen Car Buying cheap cars