CNG Frequently Asked Questions

By driving a CNG powered vehicle in the state of Utah you are eligible for these great benefits:

  • Much cheaper than gasoline: starting at $1.70 per GGE (gasoline gallon equivalent)
  • Drive solo in the carpool lane with a C Decal.
  • Park free in downtown SLC with a Green Vehicle sticker.

Benefits of buying from Clean Fuels Utah:

  • The vehicles are already here. Come drive them yourself and don't pay hefty shipping fees.
  • The vehicles have already passed safety and emissions inspections.
  • Family owned and operated.
  • Clean Fuels Utah is a licensed and bonded dealership.
  • No extra dealer document fees.
  • All of our vehicles are EPA certified.

Can I get a tax credit?

As of January 1st, 2015, the Utah state tax credit no longer applies to used vehicle purchases.

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Where can you buy CNG fuel?

CNG is easily purchased at many stations along the Wasatch Front. Most stations are located near I-15 and just require a normal credit card.

CNG Prices Station Map

CNG Fuel Finder Android App

CNG Fuel Finder iOS App

Questar listing of public CNG stations in Utah

Follow Questar on Twitter for Utah CNG station announcements

Most southern California stations use credit cards, while most Northern California stations require a PG&E card. Apply Here

US Department of Energy Fuel Station Locator
(Just select Compressed Natural Gas as the fuel and then enter your zip code or address.)

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Can you drive in the carpool lane?

The Clean Fuel (C) Decal allows you to drive in the HOV lane with only one person in the vehicle.

The state of Utah will issue a C Decal to qualifying vehicles. Bi-fuel vehicles which run on gasoline or CNG do not qualify.

Most dedicated CNG vehicles and electric vehicles (including plug in hybrids) qualify. A full list of qualifying vehicles can be found on the state website.

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Can you park for free in Salt Lake City?

Free parking is available for many dedicated CNG and electric vehicles in Salt Lake City using the Green Vehicle sticker.

Please visit the SLC website for a full list of qualifying vehicles.

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Can you convert any car to CNG?

There are many kits available to convert nearly any vehicle to CNG. Various government agencies are still debating the legality of these conversions. For now, CNG Utah sells primarily OEM vehicles which came from the factory running on CNG. We do not currently perform conversions.

Email us for a list of conversion shops.

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How safe are CNG vehicles?

How safe is Natural Gas stored at 3600 psi in my trunk?

This is a question that we've asked ourselves and our customers have asked us. We are convinced that you are much less likely of being injured by an exploding CNG tank than you are of being burned by an exploding gasoline tank.

CNG is generally over 90% methane. Here are the facts about Methane and CNG:

  • Methane has a higher flash point than gasoline. 1300º vs 450-900º
  • Methane has a narrower range of combustion than gasoline (ratio of fuel to air)
  • Methane is lighter than air - it vents upwards - gasoline forms puddles and ignites from adjacent sparks.

CNG tanks have safety devices built into them to vent gas as pressure builds to prevent explosion.

CNG tanks are exponentially stronger than gasoline tanks.

This video shows some of the tests done on CNG cylinders:

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