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Service bulletin ENP-728

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10227647
Published by NHTSA2022-12-12
Manufacturer's numberENP-728
Manufacturer's date2022-11-23
NHTSA componentEQUIPMENT

NHTSA's summary

Edits to this Operation Manual include: ADDED: Severe Duty and Normal Duty vehicle service type definitions. ADDED: Severe Duty interval for HP fuel filter element replacement. CHANGED: kPa and MPa units to bar REVISED: Figure 35 UPDATED: CNG FS inspection interval to every year UPDATED: Hexagon branding and contact information DELETED: HP fuel filter (Manifilter) drain interval from Maintenance table. CORRECTED: HP fuel filter (Manifilter) element change interval CHANGED: HP fuel filter to ?Manifilter? throughout CORRECTED: ?shut off? to ?shutoff;? ?high pressure? to ?high-pressure; ?low pressure? to ?low-pressure? throughout

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Equipment and accessories

Vehicles listed
AGILITY FUEL SYSTEMS AGILITY FUEL SYSTEMS

Listing a model year does not mean every vehicle of it is concerned: the document says which.