Gregg Wartgow

Gregg Wartgow

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Shop Operations

AI as the ultimate back-office assistant

March 21, 2024
How shop managers can use AI to streamline tedious back-office processes, from interview scheduling to managing telematics data.
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DPF jail
Emissions & Efficiency

Wrongfully condemned: How to give DPFs a clean record

Nov. 14, 2023
Just because a DPF looks dirty doesn’t mean it doesn’t deserve a second chance, though some should be sentenced to the scrap yard. Here’s how to tell if you can clean or replace...
Photo illustration: Cris Beaulieu | Erin Brown
Emissions System Exorcist
Diagnostic & Repair

Aftertreatment exorcisms made easy

Oct. 31, 2023
Some issues in the aftertreatment system can make it seem like it's possessed. With the right troubleshooting techniques and regular DPF cleanings, you can exorcise those DTCs...
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Fluids & Chemicals

Simplifying engine oil sampling

May 22, 2023
How fleets can take preventive maintenance up a notch with the right oil sampling tools and techniques.
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Brakes, Tire & Wheel

Visual guide to commercial truck brake wear

April 18, 2023
How to tell if wear on drum and air disc brakes needs to be addressed.
Cox Automotive Mobility Fleet Services
Cox Automotive Mobility Fleet Services operates more than 750 mobile service trucks to provide emergency maintenance across the country. Cox Automotive also provides towing and asset recovery services.
Diagnostic & Repair

Equipping an emergency roadside service vehicle

Feb. 27, 2023
When deciding how to equip an emergency roadside service vehicle, start with the most common reasons as to why a service vehicle is called out in the first place.