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Patent application suggests Mazda rotary return

A recent patent application by Mazda reveals that the Japanese automaker is still working on the rotary engine. This could in fact be the Skyactiv-R engine found in the RX-Vision concept from the 2015 Tokyo Motor Show. As with anything Wankel-related, nothing is certain until Mazda makes a production commitment. But this filing suggests that serious development is happening in Hiroshima. The 2011 Mazda RX-8 was the last rotary-powered car you could buy in America. Slow sales, poor fuel economy, and tighter emissions standards prevented Mazda from committing to a follow-up. But the fundamental principles of the rotary - compact size and light weight - perfectly fit Mazda's Skyactiv ethos. (For an explanation of how rotaries work, click here.) In this new engine the intake port sits at the bottom of the engine with the exhaust port on top instead of the other way around. That allows for lower mounting, which improves a car's center of gravity. This rotary is also turbocharged. Putting the turbo up high helps ensure it doesn't get in the way of any body or chassis crossmembers. The implication of those claims is that somebody is thinking about how to put this engine in a car. There are other benefits as well. The short path from the exhaust port to the turbo ensures minimal turbo lag. It also allows for a close-mounted catalyst on top of the enigne, which will help emissions. Another innovation in this new engine is a triangle-shaped rotor that covers part of the exhaust port. This allows for different exhaust flow characteristics. The filing claims that that two of the four orientations allow for less airflow resistance in the exhaust port. As in previous Mazda rotaries, there are two spark plugs to manage ignition timing and combustion. But unlike in the 16X concept, Mazda's last public display of such an engine, the new rotary uses port fuel injection. Keep in mind this is only a patent application. A Mazda spokesperson refused to comment on future product, but commented "As we stated at the Tokyo motor show, Mazda is doing all that it can to bring a rotary to the market." In the meantime, keep your RX-7 prayer candles lit and hope for the return of the rotary before the end of the decade. You can bide your time by reading the entire application here. Related Video: Related Gallery Mazda RX-Vision Concept: Tokyo 2015 View 11 Photos News Source: USPTO via autoevolution Rumormill Mazda Performance rotary mazda rx7

Automakers are offering more fuel-efficient cars than ever

Even with gas prices near their lowest point in more than a decade, Americans are still concerned about the fuel economy of their cars. More than 4 in 5 consumers say gas mileage will be an important consideration the next time they go shopping for a vehicle, according to the results of a new survey conducted by the Consumer Federation of America, which were released Monday. That's no surprise, says Jack Gillis, director of public affairs for the nonprofit organization. "Consumers have had a long history with volatile gas prices," he said. Though motorists have saved approximately $12 billion this year at the pump compared to 2015, according to AAA, car shoppers expect gas prices to rise again in the future. The average respondent to CFA's survey predicted a price of $3.50 per gallon within the next five years, a figure in line with projections made by the US Energy Information Administration. When those consumers visit dealerships, they'll have plenty of options. More models than ever are achieving 30 miles per gallon or more, according to CFA's annual analysis released in conjunction with the survey, and 15 of 16 major car companies improved their fuel efficiency on their 2016 model-year offerings. Only Ford backslid year over year, per the report. Researchers say American consumers are now enjoying the widest range of fuel-efficient options ever offered, in every vehicle class. Of 1,094 models on sale in 2016, 13.4 percent achieved more than 30 MPGs, an improvement from 11.7 percent in 2015. At the same time, the percentage of gas guzzlers offered for sale has declined. The percentage of vehicles on the market that get 16 miles per gallon or less has fallen from 6.1 percent to 4 percent, says CFA. "Even if you're in the market for a large pickup or SUV, you'd have to go out of your way to find a true gas guzzler," Gillis said. ""Consumers have had a long history with volatile gas prices." – Jack Gillis These results, the CFA suggests, indicate federal standards that prod automakers to invest in fuel-efficient technology are having the desired effect. Manufacturers are keeping pace with the requirements of the Corporate Average Fuel Economy standards, which mandate carmakers achieve a standard of 52.5 miles per gallon in testing, equivalent to about 40 miles per gallon in on-road performance, by 2025. CFA's report singled out Mazda as setting an exemplary standard.

2009-2013 Mazda6 door latch recall covers 161k cars

Mazda is voluntarily recalling 161,400 Mazda6 cars due to door latch mounting screws that may loosen, which could cause a door to open while the vehicle is in motion, thereby increasing the risk of accident or injury. The recall covers 2009 through 2013 Mazda6 models manufactured between February 4, 2008 and August 24, 2012.
The recall is expected to begin by October 18, 2013. Mazda will notify owners, and dealers will provide repairs free of charge. Scroll down for the official recall notice from the National Highway Traffic Safety Administration.