A majority of work truck fleets listed biodiesel fuel as their top alternative fuel choice over other options like EVs and CNG vehicles, according to a study by NTEA.

Survey respondents listed biodiesel as their top alt-fuel, at 16%, and was also named the top choice for future fleet interest at 14%, according to the 2019 NTEA Fleet Purchasing Outlook Survey. Also, 33% of survey respondents acknowledged currently operating alternative fueled trucks in their fleets.

Additional evidence of the survey suggests that interest in alt-fuels will likely turn upward in the long run; and that it is highly likely that clean energy solutions will remain relevant due to oil price instability.

The 2019 NTEA Fleet Purchasing Outlook said biodiesel blends can be used in any diesel engine without modification according to manufacturers’ recommendations. The survey also revealed that 76% of fleet survey respondents anticipate maintaining or increasing use of diesel engine-powered trucks in their fleets.

The purchasing survey from last year also found biodiesel blend as the No. 1 choice for greening fleet operations. Last year's survey found, following biodiesel, the most popular alternative fuel options on the market were E85, CNG and hybrid electric vehicles.