DES was established in 2006 as the emissions division of parent company North State Truck Equipment, Inc., which has been serving the heavy-duty truck market since 1978. DES was established to help California businesses meet and exceed the strict CARB and EPA emissions regulations placed on diesel trucks. Since 2006, DES has sold and/or installed over 15,000 emissions control devices and is now an industry leader in diesel emissions on the west coast and beyond.

Ron Zima was the classic North American idler, leaving the car running in his daily life. He believed it didn’t use much gas, and there was no harm in idling. However, a conversation with his children’s school principal led him to discover that idling not only wastes money and creates emissions, but also harms the health of adults and children alike. Ron started IDLE FREE for our kids® in 2006 and has since grown his company GoGreen Communications Inc. to include fleets across North America. With the IDLE FREE for our kids® for Fleets eLearning program, fleets can reduce idle time up to 80%.

Both Steve and Ron believe that going idle free is an easy way for fleets to save money and look like heroes to their customers.

Reducing idle times has many benefits for fleets. Minimizing the time, the engine is running uses less fuel, and creates fewer emissions. What most fleets don’t realize, however, is that excessive idling has major downstream costs besides these. Both DES and GoGreen encourage fleets to reduce their idle times for big rewards.

In the past, much of the argument for going idle free relied on guilt and shame, as the transportation industry is one of the highest carbon emitters. However, IDLE FREE for our kids® for Fleets relies on winning the ‘hearts and minds’ of drivers. Greater than 80% of the time, drivers flip their old beliefs and behaviors on idling an engine. At home and at work!

There is a pervasive myth among diesel drivers that idling is good for the engine. However, “diesel-powered engines hate idling,” Ron said in the interview. Steve explained further that “the diesel engine is at its dirtiest at startup… the second dirtiest [is] idle time.” Manufacturers design the emissions control system to work best when the engine is in motion with a load. This myth leads to thousands of dollars in unnecessary costs.

Idling increases wear and tear on the engine, thereby accelerating the maintenance schedule and increasing the risk of expensive repairs. Steve shared an infographic during the interview consisting of data gathered by the American Trucking Association’s Technology & Maintenance Council (TMC).

• The average cost of a heavy-duty emissions repair is $514.

• The average cost of a roadside breakdown is $448 through $760.

• Fleets average 213,967 miles between emissions failures.

• A fleet with 500 trucks spends $27k a month on emissions repairs, up 1837% from pre-2010 numbers.

These statistics show that reducing emissions system repairs by reducing idle time is an easy cost-saving measure for fleets.

“Idle time is a proxy for productivity,” Steve commented. If a truck isn’t moving, it’s not making money for the fleet. Factoring in idle time means that during the colder months or during city driving, idle time could be drastically cutting into profits. Reducing idle times by even a small percentage can increase a fleet’s profit margin.

In addition, by increasing the maintenance interval, fleets can reduce the amount of downtime per truck. In most parts of the country, a DPF cleaning service takes about 24 hours, during which time the truck is out of service. Lowering idle time is a great way to get more in-service time from each truck.

Much of the idle reduction efforts in the heavy-duty industry have centered around larger fleets. Large fleets can use advanced and expensive hardware to monitor idle time across the fleet, but this may be out of reach for some smaller fleets. A more cost-effective way for these smaller fleets to reduce idle time is to change the behavior of drivers.

IDLE FREE for our kids® for Fleets consists of short, engaging, unforgettable videos and interactive lessons and the popular IDLE FREE Calculator that can be accessed anywhere in the world on a computer or smartphone. The curriculum transforms driver behavior by using GoGreen’s three universal values in terms of the impact of their unconscious idling habit on: ‘their kids, their cars, their cash’. Drivers love the program! They save fuel and emissions in their personal vehicles and then bring their idle free behavior to work, often thanking management for the program! Steve recommended the course for all drivers and fleets across the country.

When will EVs replace heavy-duty trucks? Longer than 40 years from now, says Steve, due to electric vehicles not having the range, torque, and horsepower of diesel engines, as well as limited charging station availability. And while electric vehicles might seem like the answer to emission problems, their eco-friendliness may be outweighed by the production and use of lithium batteries. Time will tell, but for now, reducing idle time is one of the most cost-effective ways for fleets to lower emissions and save on fuel.

If advanced idle-tracking and battery-backup systems aren’t in your fleet’s budget, an eLearning course like IDLE FREE for our kids® for Fleets will encourage your drivers to reduce idle times. Fleet maintenance managers can also discover the lower maintenance costs associated with going idle-free. Finally, the entire business will thrive when less idling leads to higher profits.

Have questions about the DPF cleaning schedule that’s right for your fleet?

Head over to dieselemissionsservice.com/contact.

At DES we believe in putting out educational and informative content to not only our customers but for the general industry to grow and benefit from.

DES is a recognized leader in the diesel emissions industry. We provide a wide range of services for municipalities, fleet operators, and all manner of transportation and construction businesses across the West Coast.

Diesel Emissions Service (DES) is a division of North State Truck Equipment Inc, a family-owned business, who has been providing bus and truck repair solutions since 1978.  In 2006, we started focusing on diesel aftertreatment retrofits (DPFs, DOCs, SCRs), troubleshooting, repair, and services to help customers in applying the correct technology for compliance with the growing clean-air regulations.  Since that time, we have sold and installed more than 18,000 aftertreatment devices across the country.

We have two locations in California as well as facilities in Portland, Oregon, and Surrey (Vancouver), British Columbia. DES offers a full line of DPFs and DPF accessories through the Redline Emissions Products® brand – including DPFs, DOCs, clamps, gaskets, weld bungs, CACs, sensors, etc. at our online superstore. We also carry brands like Durafit, Skyline, GESI, Redline Detection, Filtertherm®, and more.

If you would like to schedule an appointment for your commercial truck, contact us today.

As time has passed commercial fleets gained more real-world experience with these systems. Fleets are now able to use their own data, as well as data from repair centers like ours, to align maintenance intervals with the everyday working environments their trucks operate in.

Instead of using manufacturers’ recommendations that are really for ideal scenarios and don’t reflect the realities of what their fleets are dealing with on a day-to-day basis, fleets are able to make their own decisions based on solid data.

Jack Roberts wrote an article for HDT about this in 2019, and he quoted some of the fleets’ comments about how they have contained emissions costs. These comments illustrate the importance of adjusting maintenance practices to control costs and basing maintenance and repair decisions on real-world data.

“…We really don’t have a lot of problems with exhaust systems today, generally speaking. But we used to. And the reason we don’t have them today is that we are fundamentally changing our thinking and our procedures to address the problem.”

The other key shift in thinking is to look at the big picture of why emissions issues are happening in the first place. Checking upstream for fluid and exhaust leaks and other issues is vital to avoiding the same emissions failures from just returning which causes more downtime and drives up the total cost of operation.

This quote from the HDT article really emphasizes the point about upstream issues:

“Everything runs downstream, but too many fleets and dealers just replace a part that’s failed and never bother to trace the problem upstream to find out if the problem is being caused by a seemingly unrelated issue.”

Many fleets make the mistake of treating the exhaust system as if it’s a self-contained entity that is somehow separate from the rest of the engine. It is not, rather issues with the components in the diesel emissions system are often just the symptom of a problem, not the root cause. Throwing replacement parts at the symptom never addresses the root cause and this strategy leads to much higher repair and maintenance costs in the long term.

At the Diesel Emissions Service repair shops, we have been performing emissions cleanings and repairs for 15+ years, and our experience agrees with what these fleet managers have discovered.

DES recommends that DPF filters be cleaned yearly or every 75-100k miles. This regular cleaning interval of the diesel particulate filter, which is a serviceable filter and does not need to be replaced every time, keeps the filter from being clogged with soot and ash triggering a fault code putting the vehicle into a derate or limp mode. It will also ensure that the volumetric efficiency of the DPF will keep back pressure to a minimum.

We also focus on getting to the bottom of an issue and evaluating upstream systems based on years of operating full-service diesel repair facilities. You can’t just clean the DPF or replace a diesel particulate filter and expect that the problem is solved without addressing the root cause of the problem.

We recommend that when the DPF is removed for cleaning an opacity test is completed, this will give a quick snapshot of any upstream engine upset conditions. This is key as when the DPF is installed you won’t see any smoke coming out the tailpipe until the DPF has failed.

Large fleet operations can also benefit from having their own cleaning equipment while tracking their emissions metrics and adjusting cleaning/maintenance intervals to their situation. This can drastically cut costs and downtime. With Filtertherm’s new Aqueous DPF Cleaning package, truck downtime can be minimal with DPF services taking under 2 hours to remove, inspect, wash, dry, inspect and re-install. This is a gamechanger for fleets.

At DES we believe in putting out educational and informative content to not only our customers but for the general industry to grow and benefit from.

DES is a recognized leader in the diesel emissions industry. We provide a wide range of services for municipalities, fleet operators, and all manner of transportation and construction businesses across the West Coast.

Diesel Emissions Service (DES) is a division of North State Truck Equipment Inc, a family-owned business, who has been providing bus and truck repair solutions since 1978.  In 2006, we started focusing on diesel aftertreatment retrofits (DPFs, DOCs, SCRs), troubleshooting, repair, and services to help customers in applying the correct technology for compliance with the growing clean-air regulations.  Since that time, we have sold and installed more than 18,000 aftertreatment devices across the country.

We have two locations in California as well as facilities in Portland, Oregon, and Surrey (Vancouver), British Columbia. DES offers a full line of DPFs and DPF accessories through the Redline Emissions Products® brand – including DPFs, DOCs, clamps, gaskets, weld bungs, CACs, sensors, etc. at our online superstore. We also carry brands like Durafit, Skyline, GESI, Redline Detection, Filtertherm®, and more.

If you would like to schedule an appointment for your commercial truck, contact us today.