In the first week of May 2019, the national average price per gallon of propane autogas was $1.45. The national average cost of regular grade gasoline was $2.86.
 - Photo courtesy of PERC. 

In the first week of May 2019, the national average price per gallon of propane autogas was $1.45. The national average cost of regular grade gasoline was $2.86.

Photo courtesy of PERC. 

In an environment with rising gasoline prices, propane could offer a viable option for fleet managers looking for an alternative-fuel source. 

There’s a misconception that propane autogas is more expensive than traditional fuels, noted Michael Taylor, director of autogas development for the Propane Education & Research Council.

But, the actual cost of wholesale propane typically falls between the price of oil and natural gas — the two sources of propane, he added.

In the first week of May 2019, the national average price per gallon of propane autogas was $1.45. The national average cost of regular grade gasoline was $2.86.

“There is a small segment of the fleet industry who may have tried propane autogas years ago and wasn’t pleased with the performance,” said Taylor. “Over the past decade [there have been] dramatic improvements in propane engine and fuel system technologies.”

Total Cost of Ownership for a Propane Vehicle

Fleets with light- or medium-duty trucks, delivery vans, sedans, shuttle busses, and school busses are all viable candidates for propane autogas, noted Taylor.

In order to use propane as a fuel source, fleets need to first modify their vehicles’ engines through the use of an EPA or CARB-certified conversion kit.

This presents the biggest hurdle in terms of total cost of ownership for a fleet considering a conversion to propane. The cost to convert a vehicle to accept propane autogas ranges between $6,000 and $12,000, according to the U.S. Department of Energy’s Office of Energy Efficiency & Renewable Energy.

This initial cost is eventually offset through a fuel source that can cost between 30% and 50% less than gasoline, Taylor noted.

However, fuel economy for a propane-powered vehicle does tend to be lower than gasoline vehicles, according to the U.S. Department of Energy. On average, propane-powered vehicles see 5-10% lower miles per gallon than their gasoline alternatives, Taylor noted.

This hit to fuel economy, however; is offset by the considerably lower fueling costs. 

Propane’s high octane rating — around 106 compared to gasoline’s 87-93 — along with its low-carbon and low-oil contamination characteristics leads to improved engine life compared to gasoline engines, according to the U.S. Department of Energy. The comparatively cleaner fuel typically leads to lower maintenance costs as well. 

When it comes time to retire the vehicle from a company’s fleet, fleet owners have several options in terms of how they can remarket their propane vehicles.

A fleet manager can remarket their propane vehicles as-is, as there are buyers who are looking for vehicles already equipped with propane conversion kits.

“Dependent upon the vehicle’s age and mileage, some buyers will choose to deploy the propane autogas vehicles into their operation while other buyers may choose to remove the high-value components which can be remanufactured and sold as aftermarket parts,” said Taylor. 

The inventory of propane trucks in the wholesale market is increasing and the number of buyers for used propane autogas trucks is increasing with it, according to Taylor.

Fleet managers remarketing their propane-converted vehicles can also choose to remove the propane autogas fuel system, reinstall the OEM gasoline fuel system, and remarket the vehicle as a gasoline truck, Taylor added.

Originally posted on Automotive Fleet

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