JB FLEET Management

09/17/2026

09/02/2026

If you operate a commercial motor vehicle (CMV) in Colorado from September 1 through May 31, CMV’s must carry the required chains when entering Colorado, even when the roads are dry.

09/02/2026

Pass-through seals done and cleaned up side of engine.

08/30/2026

08/30/2026

08/28/2026

Freightliner Trucks

08/28/2026

Please get with your local freightliner for an important and useful update

DD15 engines (model years 2021-2025) and DD13 engines (model years 2022-2025). These updates will continue throughout 2026.

This will update your NOx conversion derate. If there’s an issue.

Changes will include

After a fault is detected, only a warning light will appear for 650 miles or 10 hours, so there’s no performance impact for at least one workday.
At that point, under the EPA guidance, the engine derates by 15%, but does not limit speed, allowing trucks to operate normally for up to 4,200 miles.

Only after 10,500 miles, will the vehicle see a speed de-rate down to 25 mph, where it will remain until repaired. That previously was set at 5 mph.

EPA also announced that starting with model year 2027, all new diesel on-road trucks must be engineered to avoid sudden and severe power loss after running out of DEF.
To address the problem for vehicles already in use, EPA’s guidance allowed necessary software changes to be made to the existing fleet.

08/23/2026

Leaking brake chamber. Check your brake system weekly.

08/21/2026

Air freshener now available.