Propane autogas is liquefied petroleum gas (LPG) used as a vehicle fuel. A bi-fuel conversion gives a compatible gasoline vehicle a separate propane fuel system while keeping its gasoline system available. The engine runs on gasoline or propane, one fuel at a time.
Keep gasoline available
Plan to use gasoline on routes where propane refueling is inconvenient or unavailable.
Use propane where it fits your routes
Compare local fuel prices, vehicle fuel economy, and access to public or on-site fueling.
Review each vehicle before converting
Start with the year, make, model, and engine. We’ll discuss system availability and installation considerations for that application.
Bi-fuel propane vehicle cutaway. Illustration by the U.S. Department of Energy’s Alternative Fuels Data Center. Select the image to see the full-resolution labels.
Start with your application
Your vehicles. Your operating needs.
Tell us what you run and how you use it. We’ll discuss whether a gasoline–propane conversion is a fit for your application.
01 / WORK VEHICLES
Pickups & service trucks
For contractors, utilities, and service crews. Review gasoline-powered pickups and service trucks against daily mileage and fueling access.
02 / COMMERCIAL FLEETS
Vans & box trucks
For delivery, distribution, and trades. Compare fuel costs and route coverage for gasoline-powered vans and box trucks.
03 / PUBLIC FLEETS
Police & municipal vehicles
Review gasoline-powered patrol and municipal vehicles with attention to operating schedules, idling, and fueling access.
Application compatibility and conversion availability require review of the specific vehicle, engine, and applicable requirements.
An informed starting point
Build the plan around your operation.
A useful conversion discussion starts with the details of your fleet and access to propane fueling.
01 — Share your vehicle details
Year, make, model, engine, vehicle count, and location.
02 — Describe your fuel use
Annual mileage, gasoline consumption, fuel prices, and propane access.
03 — Discuss the next step
Review application fit, installation questions, and the information needed to move forward.
Fuel savings and ROI calculator
What could autogas save on your routes?
Compare your gasoline-only fuel cost with a bi-fuel scenario using your own prices, fuel economy, and expected share of miles driven on propane.
Enter annual miles and the upfront conversion cost for one vehicle. The estimate uses fuel savings only. It excludes maintenance, financing, and fueling infrastructure costs. Use vehicle-specific MPG when available.
Enter your fuel and mileage assumptions to see the comparison.
Fueling and fleet planning
Plan where you’ll fill up.
Map propane autogas stations against your regular routes. Confirm operating hours, vehicle access, and payment options with the station. If vehicles return to the same yard, ask your supplier about on-site fleet fueling.
