What busses are most fuel efficient?

Fuel efficiency Fuel efficiencies used in this analysis were as follows: diesel bus: 4.82 miles per diesel gallon; diesel-hybrid bus: 5.84 miles per diesel gallon; natural gas bus: 4.47 miles per diesel gallon equivalent; and battery electric bus: 2.02 kWh per mile, which accounts for a 90 percent charging efficiency.



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Transit buses are a LITTLE more fuel-efficient, but not as much as many people might think. A car (24.2 MPG) with the national-average of 1.5 passengers gets 36.3 PPMG (Passenger Miles per Gallon). A transit bus (3.3 MPG) with a national average load (9.1 passengers) gets 30 PPMG.

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A diesel engine requires less fuel to produce the same output as a gas engine. A conventional gas engine operates via a spark ignition system, which burns more fuel than a diesel engine's combustion system. As a result, diesel buses are more fuel-efficient per gallon and burn less fuel while idling.

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Diesel school buses are already the most fuel-efficient in the industry, due to a higher BTU count compared to other fuels, providing better fuel economy and a longer operating range compared to similar-sized gasoline, propane or compressed natural gas (CNG) engines.

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Diesel. Among other types of fuel transport vehicles use, diesel fuel is a popular choice for those working with larger-capacity vehicles such as buses, vans, trucks, and boats.

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Period. Why? Diesel is the most fuel-efficient engine type on the market. Diesel outperforms other fuels in operating range.

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A typical school bus burns approximately one-half gallon of diesel fuel for each hour it idles. Thus, if a company operates 50 buses and each bus reduces its idling time by 30 minutes per day, at $1per gallon of diesel fuel, the company would save $2,250 per school year in fuel costs.

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Executive buses average 6 miles per gallon, especially when it comes to larger models that carry 45 to 51 passengers. Newer, high-tech models may get up to 10 to 12 miles per gallon. The larger the bus, the lower the average mileage.

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The tanks on gas buses are usually either 30 or 60 gallons.

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Ultimately, the general consensus may be that the flat-nose transit buses make the best conversions. A flat-nose (transit) school bus could have the engine in the front or the rear (pusher). But, there are front-engine flat-nose transit buses and rear-engine flat-nose transit buses.

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With the Cummins B6. 7, L9, or Cummins Westport B6. 7N and L9N, you can't go wrong with your first pick when it comes to providing a highly reliable, clean emissions power source.

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According to the U.S. Department of Energy, the average school bus travels 12,000 miles per year 4. At the average school bus mpg, that means a single school bus would use about 1,993 gallons of fuel annually.

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