VW Scandal May Delay Mazda U.S. Diesel Rollout, Still Committed To Technology
Company Taking Extra Steps to Ensure Compliance with U.S. Emissions
Mazda has been promising that it will bring over its line of critically acclaimed Skyactiv-D turbodiesel engines to the U.S. for several years, first showing a diesel-powered concept Mazda 6 sedan at the 2012 Los Angeles Auto Show, promising an introduction sometime in 2014. Here we are on the eve of the 2016 calendar year and 2016 model Mazda 6 sedans and CX-5 crossovers having been on sale for several months. Even before the Volkwsagen TDI emissions rigging scandal, some industry watchers had already speculated that Mazda had quietly pulled the plug on its diesel program for the U.S. market, while publicly claiming development was ongoing. According to an Automotive News report, Mazda is adamant that it will eventually bring a diesel-powered model to the U.S. but admitted that delays are inevitable in the light of the increased scrutiny from U.S. regulators on diesel models’ on-road emissions compliance.
The Skyactiv-D’s unique low (for a diesel) 14:1 compression ratio, in theory, resulted in significantly reduced NOx emissions compared to conventional diesels, with Mazda initially claiming it would be able to meet U.S. emissions standards without a costly and complicated urea fluid selective catalyst reduction (SCR) aftertreatment system. However, Mazda reportedly struggled to balance the competing directives of meeting strict U.S. NOx standards while maintaining the “zoom-zoom” driving character that Mazda vehicles are known for, without the use of an SCR system. It’s expected that if and when a Skyactiv-D-powered Mazda reaches U.S. showrooms, it will have an SCR aftertreatment system.
Source: Automotive News