Trucking Operations Knowledge Hub

The DPF is the single most expensive aftertreatment component on a modern diesel. Run it right and it lasts 400K+ miles; run it wrong and you're buying a new one at 150K.

Modern diesel aftertreatment is four components working as a system. When one fails, the others suffer. Knowing the chain saves big money in diagnosis.

The ELD mandate is settled law since 2019, but the details still trip up new fleets and owner-operators. Here's the current state.

IFTA is one form per quarter, but the data behind it has to be perfect. Here's the clean version.

BIT inspections are unique to California and stricter than federal DOT in several areas. Here's how to keep your terminal rating clean.

HOS is the rule drivers love to hate and the one most often misunderstood. Here's the clean reference.

CSA scores drive insurance, audit risk, and shipper reputation. They're also widely misunderstood.

Drivers see 'regen in progress' and panic. Service writers see 'failed regen' and replace parts. Both miss what's actually happening.

DEF problems escalate fast — from warning lamp to derate to no-start in three stages. Here's the diagnostic order.

The post-trip is the most under-rated 10 minutes in trucking. Done right, it eliminates the 2am roadside call.

EPA, CARB, and a patchwork of state programs make diesel compliance moving target. Here's the 2026 snapshot.

Cold-weather diesel problems are 90% preventable. The fleets that don't break down in December prep in October.