GM Duramax Diesel to Be On-Road Tested For Emissions

[Gorehamj]

John Goreham
Contributing Writer, GM-Trucks.com
9/29/2015

Just hours after GM-Trucks.com received word directly from General Motors that the Colorado and Canyon Duramax diesel trucks would come on-time, Automotive News has received additional details casting that into doubt. Scott Yackley, Chevrolet Trucks assistant chief engineer, told Automotive News “The EPA and CARB told us they are going to do on-road testing." Automotive News presumed that meant that the trucks might be delayed (since they have not been tested yet, and sales were to begin in October).

 

Automotive News reported that the EPA also says that the testing will include rental and customer vehicles later to ensure that the diesel emissions are in-line with expectations. Expect confusion like this to be common until the EPA sorts out the mess Volkswagen's dirty diesel cheat-fleet has created. In related news today, VW now says that Skoda, SEAT and some commercial diesels made by VW are fitted with the software that over-rides emissions controls.

 

On-road testing has not been part of EPA evaluations in the past. Rather, vehicles are run on a test stand including a dynamometer. Most certifications are carried out by the automakers themselves following strict guidelines for data collection and reporting. Hyundai and MINI were the latest automakers to have discrepancies between the conclusion and the data. Both were ordered to re-label their vehicles' MPG ratings. Ford had some similar issues. To find such discrepancies, EPA does pull and re-test some vehicles itself from each automaker from each model year. For a comprehensive look at the on-vehicle testing that is to come, and to gain a better understanding of the types of diesel emissions controls now needed to comply, please check out this report.

[Cowpie]

Thanks to VW and their emissions scandal for this one. It isn't nice to fool the EPA. The EPA monster has been awoke from its slumber and now they won't be fooled again and we will all pay for it.

[LaserBlueZ71]

Thanks to VW and their emissions scandal for this one. It isn't nice to fool the EPA. The EPA monster has been awoke from its slumber and now they won't be fooled again and we will all pay for it.

Sadly, your right.

 

If you thought the rules, laws and emissions equipment up till now was BS, just wait until they cook up even more crap! The EPA is pissed and looking for revenge.

[Cowpie]

You can bet they will. The current standards will be lapsed by the Phase II GHG standards coming for 2018 and more stringent for 2021-2028 engines. The ball is already in motion. We don't have to wait for the EPA to cook up anything. The meal is ready and about to be served. Just for commercial heavy trucks, this stuff is projected to add $10K to $12K to the cost of each new truck. Expect about $2-3K for a pickup diesel. And the fun never ends, boys and girls.