NGVi is now more than natural gas. Welcome to the new Alternative Fuel Vehicle Institute – AFVi!

The Heavy-Duty CNG Fuel System Inspection Interval Conundrum

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

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 are both required and essential because natural gas is stored on board CNG vehicles at extremely high pressures — at least 3,600 psi. While most CNG fuel systems are extremely […]

These 2 Vehicle Inspections Are NOT the Same

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

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 the reality is far from it. Below are three (3) reasons why FMCSA is no substitute for CNG, and why it is imperative that you have your technicians follow the […]

Potential causes of low power in CNG engines

Cummins INSITE software used to diagnose CNG vehicle

The biggest difference drivers report when they swap from diesel-powered vehicles to those that operate on natural gas is that they appear to be running on low power. Many times, the reason this happens with newer Cummins NG engines is simply because these drivers have to get used to a new fuel delivery system. We’ve […]

RNG Positions Natural Gas as the Better Green Alternative

If you don’t currently use renewable natural gas (RNG) to fuel your CNG fleet, chances are you will in the near future. This isn’t simply because RNG is transported through the same pipelines as traditional natural gas, but because of its growing popularity as a green alternative that’s available today. What makes RNG so successful, […]

Have your CNG drivers voiced these concerns?

CNG technicians get a lot of the credit for keeping your fleet up and running, but don’t overlook the value and responsibilities of your drivers. Not only are they directly contributing to your ROI, they’re the employees who spend the majority of their time in these vehicles. Any issues or concerns are more likely to […]

Will Renewable Natural Gas affect your fleet?

You’ve probably heard a lot of buzz around renewable natural gas (RNG). Unlike natural gas that’s derived from deep underground wells, RNG comes from organic waste material sourced from dairies, landfills, and water treatment plants. Some states like California are pushing hard for this alternative energy source to decarbonize the sectors that already depend heavily on CNG, […]

All NGV technicians benefit from CNG Fuel System Inspector training

While you may only have a handful of technicians who have been designated or trained as CNG Fuel System Inspectors, the reality is that all of them would benefit from this course. There are a few reasons for this, but the one I want to stress the most is safety. By their very nature, CNG […]

Confused about these CNG fuel system inspection requirements?

We understand that your fleet needs to keep moving, but not at the expense of safety. We also know that some regulations may seem confusing when it comes to the proper inspection and maintenance of your CNG fuel systems. Here are the ones we get the most questions about, and our recommendations on how to […]

Want your CNG fueling station to last 50 years?

Depending on how well you maintain your CNG fueling station, it could either perform well for 50 years or fall apart after 5. The good news is that it’s relatively simple to get the most out of yours, as long as you follow industry best practices and manufacturer’s guidelines for preventative maintenance on your compressors.    […]

CNG in-person training is still available—and safe

You may have considered some of the courses we offer for getting your technicians up to speed on the latest in heavy-duty NGV maintenance and diagnostics, or CNG fuel system inspection requirements, but you’re worried about holding on-site training.    We understand your concern. The pandemic has forced all businesses, regardless of industry, to rethink […]