CNG Vehicle Diagnostics and Maintenance Archives - Alternative Fuel Vehicle Institute

A model CNG truck, a stack of American dollar bills, a gold coin, and a manila folder with a dollar sign are grouped on a desk in front of a sustainability leaf symbol and the silhouette of a government building.

Government Grants for Natural Gas Vehicles: Why Training Shouldn’t Be Overlooked

December 9, 2025 No Comments

Across the country, fleets are looking for ways to reduce expenses and modernize their operations. Government grants for natural gas vehicle projects have been an important tool in making that possible. These funding opportunities can cover substantial portions of the cost for purchasing natural gas vehicles, and, in some cases, even cover the building of CNG fueling stations to support them.

A CNG technician sits before a computer screen with the training options for live-virtual or e-learning.

Live-Virtual or E-Learning: Which Online CNG Training Is Better?

September 1, 2022 No Comments

CNG training is essential to all technicians who work on or near natural gas-powered vehicles. That training may be as fundamental as learning the safety

Miami-Dade CNG transit buses rest in a parking lot while the sun sets.

2 Critical Elements for Operating and Maintaining a CNG Transit Fleet

June 22, 2022 No Comments

Besides appropriate safety policies and protocols, a CNG transit fleet depends on two critical elements to be safe and successful: 1) obtaining comprehensive training for

A close-up view of NGVi's "Passed" CNG Cylinder Label.

CNG Inspection Interval Changes Approved by US Department of Transportation

March 9, 2022 No Comments

Changes to CNG cylinder inspection intervals required by the U.S. Department of Transportation’s Federal Motor Vehicle Safety Standard (FMVSS) No. 304, “Compressed natural gas fuel

NGVi training options concept: in-house training in a classroom, live-virtual training on a laptop, and e-learning training with prerecorded lessons.

Rush Enterprises’ Customized CNG Training Program is the Gold Standard for Fleet Service Operations and Employee Motivation

February 23, 2022 No Comments

When it comes to CNG vehicle training and safety, do your technicians participate in individual courses, or do they go through a fully developed program

Safety Notice – Cylinder Collar Fatigue in Mainstay CNG Modules

January 6, 2022 No Comments

Leo Thomason Executive Director & Instructor Safety Notice – Mainstay CNG Fuel System Modules If you own, operate or service CNG vehicles equipped with Mainstay

CNG technicians look at an open engine on a CNG truck. Vapor is coming from the back of the vehicle.

Why a Natural Gas Engine Was Slow To Crank and Misfired, with Vapor and Odor in the Exhaust Stream

November 2, 2021 No Comments

We often get questions regarding the differences between natural gas-powered vehicles (NGVs) and their diesel counterparts. Sometimes those differences are initially concerning to technicians or

Open cylinder shields on top of a CNG bus.

4 Ways Transit Agencies Can Improve Their CNG Fleets

August 17, 2021 No Comments

Transit agencies have four key areas they can focus on if they want to maximize the use of their CNG fleets. They include adhering to

An open CNG fueling system that is being inspected, displaying fuel lines, valves, and cylinders.

The Heavy-Duty CNG Fuel System Inspection Interval Conundrum

August 13, 2021 No Comments

We’re asked almost daily about the required interval for heavy-duty CNG fuel system inspections. Our answer is “it depends,” and then we explain. These inspections

Two vehicle inspectors squatting down to check the label on a CNG cylinder.

These 2 Vehicle Inspections Are NOT the Same

August 5, 2021 No Comments

Has your team ever confused the CNG Detailed Visual Inspection with the FMCSA Annual Inspection? On paper, it might sound like a reasonable mistake, but

Category: CNG Vehicle Diagnostics and Maintenance

Government Grants for Natural Gas Vehicles: Why Training Shouldn’t Be Overlooked

Live-Virtual or E-Learning: Which Online CNG Training Is Better?

2 Critical Elements for Operating and Maintaining a CNG Transit Fleet

CNG Inspection Interval Changes Approved by US Department of Transportation

Rush Enterprises’ Customized CNG Training Program is the Gold Standard for Fleet Service Operations and Employee Motivation

Safety Notice – Cylinder Collar Fatigue in Mainstay CNG Modules

Why a Natural Gas Engine Was Slow To Crank and Misfired, with Vapor and Odor in the Exhaust Stream

4 Ways Transit Agencies Can Improve Their CNG Fleets

The Heavy-Duty CNG Fuel System Inspection Interval Conundrum

These 2 Vehicle Inspections Are NOT the Same

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Category: CNG Vehicle Diagnostics and Maintenance

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