Tacoma – A 44-year-old Columbia, New Jersey man pleaded guilty today to conspiracy to violate the Clean Air Act for his scheme to interfere with pollution control software on diesel trucks, announced U.S. Attorney Tessa M. Gorman.
According to records filed in the case, Achtemeier conspired with mechanics in garages and operators of truck fleets to disable the anti-pollution software installed on diesel trucks.
Coconspirators who wanted to disable their trucks’ pollution control hardware system—a process commonly known as “deleting”—sought Achtemeier’s help to trick the truck’s software into believing the emissions control systems were still functional, a process known as “tuning.”
Monitoring software on a deleted truck will detect that the pollution control hardware is not functioning and will prevent the truck from running. Achtemeier disabled the monitoring software on his client’s trucks by connecting to laptops he had provided to various coconspirators. Some of the coconspirators would pass the laptop on to others seeking to have the anti-pollution software disabled on their trucks. Once the laptop was hooked up to the truck’s onboard computer, Achtemeier could access it from his computer and tune the software designed to slow the truck if the pollution control device was missing or malfunctioning. Achtemeier could “tune” trucks remotely, which enabled him to maximize his environmental impact and personal profit.
The EGR and DPF systems used in diesel trucks cause (or caused, it’s been a while since I last looked it up) a big reduction in fuel mileage. I think it was a 2 or 3 MPG reduction.Doesn’t sound like much, but it adds up when you are running 200,000+ miles a year per truck. With the system running I believe the average fuel mileage for the trucks in our company is around 6 to 8 MPG depending on the route.
Additionally the systems are expensive as all get out to repair and maintain. When the DPF and DEF systems on my truck went out, the truck was down for 3 months waiting on parts, and from what I heard from our mechanic, the final repair bill was around $15,000USD.
That said, the fines for bypassing the emission systems are big enough that it’s really not worth it, but some owner operators don’t realize it as many don’t run their trucks like the businesses they are. They just know this is expensive as hell and they can reduce the cost by bypassing them.
It's almost like we should've stuck with electric trains for long haul freight and left OTR hauling for last-mile. Almost like that would've seriously helped the CAA rather than a bunch of half-fixed like this.
The EGR and DPF systems used in diesel trucks cause (or caused, it’s been a while since I last looked it up) a big reduction in fuel mileage. I think it was a 2 or 3 MPG reduction.Doesn’t sound like much, but it adds up when you are running 200,000+ miles a year per truck. With the system running I believe the average fuel mileage for the trucks in our company is around 6 to 8 MPG depending on the route.
I think it's worth noting that this is an environmental benefit, not only an economic one. In other words, it's not that people defeating the emissions control devices are making their trucks purely worse for the environment for their own selfish benefit; it's that they're making a trade off between increased 'regular' (for lack of a better term) pollutant emissions like NOx/SOx/particulates, and decreased greenhouse gas emissions (CO2).
I'm not saying they're altruistic -- obviously they do it to save money (at least until they get caught and fined) -- but I am saying that we can't just assume it's bad without first doing the math and making a value judgement about what sorts of emissions we care about.
Geeking out about an edge case where not having the fancy emissions controls is better: using biodiesel
There are also more complicated considerations, such as how getting rid of these emissions controls and retuning the engine may also allow it to run on higher percentages of biodiesel. The trade-offs associated with that are not only the fact that the fuel becomes carbon-neutral (net CO2 emissions go to zero, at least for the percentage of the fuel that is bio- instead of dino-), but also that biodiesel naturally has zero sulfur in it (which means zero SOx) and burns cleaner (fewer particulates) and hotter (more NOx) than dino-diesel. On top of that, more NOx could be a bad thing or a good thing, depending on whether you're driving in a NOx-limited or VOC-limited regime.
In other words, using 100% biodiesel in an urban environment (VOC-limited) is IMO enough to actually justify preferring not to have the fancy emissions controls for legit environmentalist reasons: the better efficiency in general (as the parent comment mentioned), zero net greenhouse gas emissions, zero SOx, irrelevant NOx, and all at the cost of only moderate particulates (more than would be emitted from a vehicle with a DPF, but less than would be emitted if the same car were burning dino-diesel).
Of course, none of those benefits occur unless you actually seek out B100 (or at least, significantly higher percentages than the B5 that normal diesel can be blended up to), and that's a motivation much more associated with the hippie types that drive VW TDIs and old Mercs, not truckers.
I genuinely would like to know if the increase in CO2 emissions is worth the decrease in NOx emissions, but acid rain is a now problem and climate change isn't.
Climate change is absolutely a now problem, it's affecting far more people right now than acid rain ever has or ever will, it's costing trillions and you're already paying for it in taxes, insurance, and other ways. The fact that people don't understand it or appreciate how significant it is doesn't mean it's not a "now" problem, it just means it's not a problem that's ever going to get fixed because people like you don't and won't ever consider it a "now" problem. Enjoy the challenge of struggling your way through the increasingly impossible economy, it's not going to get better.
Don’t quote me on it, but I believe that the emissions tech is efficient enough that even with the increased fuel consumption there is an overall reduction in emissions across the board. That was my understanding when the tech was first being fazed in back in the mid to late ‘00’s. Whether that was true or just propaganda, don’t know. I just knew that full compliance was required to run in California and a few other states.
If it lowers MPG, it increases CO2 per work done. There's no getting around that.
I always thought that the way auto manufactures went about meeting emissions by adding more parts(that will break and need replacing, $$$) and lowering fuel economy(I wonder who benefits from that?) to be at best, lazy and at worse, suspicious. I recently learned about a Swedish engine manufacture called Scania that's managed to meet emissions without DEF. I'm definitely gonna keep an eye on that company.
For now, I'm just gonna keep making biodiesel for my farm and burning scrap wood for heat. The emissions tech they're piling on to diesels actually precludes running biodiesel in them, so it's not exactly like I'd ever be getting any new. Not like I'd want to buy a one ton piece of spyware anyway.
I'm doing some reading here, too. Seems like the additional maintenance expense caused by the exhaust recirculation can be expensive over the life of the vehicle. This isn't just maintaining/reparing the EGR system, but also maintaining/replacing other engine components that have a shorter lifespan due to the emissions controls. This makes sense to me.
People are definitely still trying to find ways to improve the internal combustion engine. It's just this technology takes time to reach the mainstream, if it ever does.
My understanding from past reading is that there's a history of diesel trucks pulling off emissions control hardware to increase their MPG somewhat, so they save money on fuel. First ran into it when reading about the practice in Europe, but also happens here in North America.
I don't know whether it's possible to tweak the computer-controlled system to achieve a similar effect, but it'd make sense.
For semi-trucks at least, my cousin (who drives a truck) told me it costs him a lot of money to have the DEF systems on his truck and operate them, and it costs him money he would otherwise be making on his deliveries.
I thought he was an idiot, and hes risking his and everybody else's health around him with his attempts to defeat those systems. (Don't think he was ever successful at it)
It refunds itself the second you have to replace any of the emission components and if done early you refund it by getting better MPG and not having to spend money on diesel exhaust fluid.
Easily. Read my other comment, but this would pay for itself in a single afternoon if you didn't maintain your vehicle and would otherwise get shutdown due to an exhaust failure.
Or if you drive a truck in stop and go traffic, and the filters clogged up early, causing you to delay and let the exhaist system do a cleaning cycle (take 1hr, requires engine running and high throttle.) Etc etc.
Achtemeier charged as much at $4,500 per truck for work that often took him two hours or less. Achtemeier advertised his services on social media nationwide, doing business as Voided Warranty Tuning (VWT) or Optimized Ag. Between 2019 and 2022 his company took in more than $4.3 million in gross profits.
When you run out of DEF or the DPF is clogged, you can't run your truck for more than a brief while. You get half output in a limp-mode to go refill your DEF or have the DPF serviced. DEF is the reactant for the exhaust that makes diesel burn cleaner, but means modern trucks have 2 tanks now. Users hate it, but it cuts emissions massively. Also adds a few grand to the vehicle exhaust system in hardware and sensors and control units. Anyways:
Time = money.
For a commercial or even semi private vehicle if you bypass even one indicent of downtime by doing this is paid for itself.
That said, the DPF is a filter, and can physically clog and cause an exhaust fire if there is no monitoring software. I hope at least this guy had it wait till it was almost critical and then stop, not entirely disable the stop signal. Otherwise there is a serious risk to the vehicle and passengers.
Removing the pollution control equipment and disabling the software results in trucks polluting at 30 to 1,200 times the level of a truck with pollution control systems.
Diesel engines can be tuned to be 10% more efficient ie better engine performance and better fuel economy if u modify the engine tuning to ignore the environmental tuning requirements that have been forced upon the manufacturers.
as much as this guy sounds like an asshole should ownership not mean u can modify your own property as u see fit?
as much as this guy sounds like an asshole should ownership not mean u can modify your own property as u see fit?
That's kind of what emission standards are, is rules of that. You can modify your legally purchased firearm as you see fit, but if your modifications make it shoot in random directions, you can't use it in a shooting range.