Cummins Clean Fuel Tech, Luxfer Canada and Luxfer Gas Cylinders preliminary evaluation PE25003
Compressed Natural Gas (CNG) Fuel Leak. NHTSA’s Office of Defects Investigation opened this preliminary evaluation about the tank assembly. Opened Mar 28, 2025 and still open — 19 months so far, against NHTSA’s goal of eight months for a preliminary evaluation. open
What NHTSA says
Source: Office of Defects Investigation, as filedThe Office of Defects Investigation (ODI) received a complaint alleging a compressed natural gas (CNG) fuel leak from a Luxfer Type 4 CNG 60 diesel gallon equivalent (DGE) 26x108 size fuel container. The container was used in a system built and installed by Natural Gas Fuel Systems, LLC, dba Cummins Clean Fuel Technologies (CCFT). A strong odor alerted the driver of the fuel leak, which occurred at a fracture at the fuel container's threaded aluminum alloy fixed end boss. The fuel container is positioned longitudinally within an enclosure structure that is attached to the truck's passenger side frame rail in a side-mount configuration. The fuel container is held in position relative to the enclosure structure via neck mounting blocks and two aluminum alloy end bosses, each at opposite ends of the fuel container. The threaded fixed end boss is securely held in position, while the other floating end boss has some degree of freedom to allow for normal expansion and contraction with internal pressure and temperature changes. The complainant reports they are aware of five other trucks purchased by other customers from the same dealership that have experienced the same alleged condition. Furthermore, previous discussions with CCFT have revealed that they are also aware of other similar incidents. A fuel leak in the presence of an ignition source may result in a fire or explosion. To better understand the frequency, severity and scope of the allegedcondition, a Preliminary Evaluation (PE) is being opened. To review the ODI report number cited in the Opening Resume ODI Report Identification Numbers document, go to NHTSA.gov.
A Preliminary Evaluation is the first formal stage: NHTSA has decided the complaints and other information it screened are worth a closer look, and asks the manufacturer for its own data on the condition. The summary is the agency’s own text from its investigation file, unedited; the resumes carrying the full reasoning are linked below.
The paperwork NHTSA filed
Source: every document on this action, at nhtsa.gov- Opening resume — ODI’s own summary of why it opened this — the subject, what prompted it, and the vehicles in scope.
| Document | Code | Filed | At NHTSA |
|---|---|---|---|
| Opening resume | INOA | 2025 | |
| Information request to the manufacturer | INIM | 2025 | |
| Manufacturer's response — data | INRD | 2025 | 3 files 123 |
| Manufacturer's response — full submission | INRL | 2025 | 3 files 123 |
| Memo granting a response extension | INRE | 2025 | 2 files 12 |
| Filed document | INOV | 2025 | |
| Filed document | INIS | 2025 | |
| Confidential business information notice | INCCS | 2025 | |
| Confidential business information notice | INCBC | 2025 | 2 files 12 |
| Confidential business information notice | INSS | 2025 | 25 files 12345678910111213141516171819202122232425 |
40 of 236 documents shown; the rest are under this number at nhtsa.gov.
These are NHTSA’s own files, served from the agency’s site — the resumes are what ODI wrote when it opened and closed the action, and the rest is the correspondence behind them, including what the manufacturer sent when the agency asked. They are linked, not copied: where a document names the people who wrote in, that redaction is the agency’s to make and its copy is the one you should read.
What this means for an owner
Source: and what happens nextAn investigation is not a finding that a defect exists, and it puts no duty on anyone. NHTSA opens a Preliminary Evaluation when complaints and other reports suggest a condition worth asking the manufacturer about; it upgrades to an Engineering Analysis when the answers warrant testing; it closes either when it recommends a recall, when the manufacturer recalls on its own, or when no defect trend is found. The agency’s own goals are about four months for a petition, eight for a Preliminary Evaluation or a Recall Query and eighteen for an Engineering Analysis; many run longer.
This one is open. Nothing is owed on the vehicle today; if it becomes a recall, owners are written to and the repair is free. The moment to know is the day the campaign number appears — Recall Watch checks each VIN against every new NHTSA campaign and emails you when one lands, or take a free one-line alert by model year.
Model years it names
Source: as NHTSA filed themNHTSA filed this action against Natural Gas Fuel Systems, LLC dba CCFT without naming a model year — an equipment or manufacturer-level query.
An investigation is not a recall. Yet.
If NHTSA’s questions become a recall, the campaign lands in the federal file first. Recall Watch checks your VINs against every new campaign the night it is filed.
Common questions
Source: NHTSA Office of Defects InvestigationIs PE25003 a recall?
No. A preliminary evaluation is NHTSA asking questions, not a recall. A safety recall carries an NHTSA campaign number and a duty to repair for free; this one has not produced one. Whether one particular vehicle has an open recall is a VIN question at nhtsa.gov/recalls.
Is PE25003 still open?
Yes, as of NHTSA’s latest file: opened Mar 28, 2025, 19 months ago.
Which vehicles does PE25003 cover?
NHTSA filed it against Natural Gas Fuel Systems, LLC dba CCFT without naming a model year.