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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

Why a Natural Gas Engine Was Slow To Crank and Misfired, with Vapor and Odor in the Exhaust Stream We often get questions regarding the

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Open cylinder shields on top of a CNG bus.

4 Ways Transit Agencies Can Improve Their CNG Fleets

August 17, 2021

4 Ways Transit Agencies Can Improve Their CNG Fleets Transit agencies have four key areas they can focus on if they want to maximize the

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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

The Heavy-Duty Fuel System Inspection Interval Conundrum We’re asked almost daily about the required interval for heavy-duty CNG fuel system inspections. Our answer is “it

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

These 2 Vehicle Inspections Are NOT the Same

August 5, 2021

These 2 Vehicle Inspections Are NOT the Same Has your team ever confused the CNG Detailed Visual Inspection with the FMCSA Annual Inspection? On paper,

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A new spark plug shines in front of old, worn-out spark plugs arranged in a circle.

Minimize Costly Oil Carryover in Your Heavy-Duty NG Engines

July 29, 2021

Minimize Costly Oil Carryover in Your Heavy-Duty NG Engines These are the most common performance complaints for heavy-duty natural gas vehicles: Low power Difficulty starting

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Cummins INSITE software used to diagnose CNG vehicle

Potential causes of low power in CNG engines

July 9, 2021

Potential causes of low power in CNG engines The biggest difference drivers report when they swap from diesel-powered vehicles to those that operate on natural

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RNG Positions Natural Gas as the Better Green Alternative

June 23, 2021

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

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Have your CNG drivers voiced these concerns?

June 16, 2021

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

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Will Renewable Natural Gas affect your fleet?

March 25, 2021

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

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All NGV technicians benefit from CNG Fuel System Inspector training

February 15, 2021

ALL technicians benefit from CNG Fuel System Inspector training While you may only have a handful of technicians who have been designated or trained as

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  • About NGVi
    • Customer Success Stories
  • Training
    • Course Catalog
    • Live Online Training Schedule
    • Live In-Person Training
    • On-Demand E-Learning
    • Team Training
  • Certification
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    • CNG Fueling Stations
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  • Resources
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    • CNG Fuel System Inspection Requirements
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    • Cummins Natural Gas Engine Maintenance Tips
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  • Contact Us