This Is What Mazda EPA MPG Results Will Look Like With Skyactiv-X HCCI Engines (Asterisk, Fine Print, Subject To Change)
Mazda announced on August 8th what had long been rumored. The small Japanese automaker has successfully overcome the remaining issues which held at bay mass production of gasoline compression ignition.
Essentially, Mazda’s Skyactiv-X engines, due first in the next-generation 2019 Mazda 3, is intended to bring diesel-like ignition to small, supercharged four-cylinder engines, along with diesel-like fuel economy. However, the gas-fired Skyactiv-X engines will be wildly cleaner than diesel powerplants. Mazda has said in the past that these HCCI engines will likely limit the need for continuously variable transmissions. We also learned, with Mazda’s latest pronouncement, that the company’s Skyactiv-X engines will be significantly torquier than their Skyactiv-G predecessors.
If Mazda can live up to its pronouncements — the company says the engines are “still under development and figures are subject to change” — it’ll be a win for both the environment and driving enthusiasts. And because Mazda also claims a 20-30-percent improvement in fuel efficiency, it’ll be a win for your bank account, as well.
We wanted to see exactly where Mazda’s alleged fuel savings will put Mazda’s current products on the EPA’s miles per gallon scale, so here are the results of some quick math.
One column below shows the fuel economy ranges of Mazda’s current six-model U.S. lineup. We’ve opted to show the combined figures only to avoid cluttering with too great a quantity of numbers. Another column shows the same Mazda products with a 25-percent (the average of Mazda’s claims) reduction in fuel consumption. An extra column shows where current class leaders are positioned.
Naturally, rival automakers have just as much license as Mazda to make fuel efficiency advances over the next two or three years, so don’t assume the figures in the competitors’ column will hold through 2017.Mazda2017 EPA MPG Range CombinedWith Skyactiv-X 25% Improvement (MPG) Class-Leading CompetitorMazda 328-3237-4337 *Mazda 628-3037-4052 **Mazda MX-5 Miata293930 †Mazda CX-329-3139-4231 ††Mazda CX-526-2735-3634 °Mazda CX-923-2431-3229 °°
* Presently, the Mazda 3 rival with the greatest combined mpg is the Chevrolet Cruze Diesel, rated at 37 miles per gallon combined. The Hyundai Elantra Eco has a combined rating of 35 mpg, as does the Honda Civic with a 1.5-liter turbo.
** The 2018 Toyota Camry Hybrid LE is rated at 52 miles per gallon combined. The most efficient non-hybrid midsize sedan is the base Camry at 34 miles per gallon.
† The Fiat 124 Spider, incidentally a Miata-based car, has an EPA combined rating of 30 mpg.
†† The front-wheel-drive Honda HR-V is rated at 31 mpg combined.
° The front-wheel-drive Nissan Rogue Hybrid is rated at 34 miles per gallon combined. Among non-hybrid compact crossovers, the FWD Honda CR-V 1.5T is the leader at 30 mpg.
°° The Toyota Highlander Hybrid is rated at 29 miles per gallon. The front-wheel-drive Kia Sorento 2.4 is rated at 24 mpg combined; the FWD non-hybrid Toyota Highlander at 23.
Timothy Cain is a contributing analyst at The Truth About Cars and Autofocus.ca and the founder and former editor of GoodCarBadCar.net. Follow on Twitter @timcaincars.
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- ToolGuy CXXVIII comments?!?
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