Why Fleets That Want Renewable Diesel May Be Better Off With Biodiesel
Renewable diesel has gotten a lot of attention from fleets over the past few years, and for good reason: It’s a drop-in replacement to petroleum diesel that offers excellent performance and cuts emissions.
But what some fleets don’t realize is that same description applies to biodiesel — and in some cases biodiesel gives fleets additional advantages, including lower price, more product availability and further emission reductions.
So if you think renewable diesel makes the most sense for your fleet, let’s explore why biodiesel may actually be a better fit.
Comparing Biodiesel and Renewable Diesel
First, a little background on the two fuels.
Biodiesel is made from feedstocks such as recycled cooking oil, waste animal fats and vegetable oils. In the production process, the feedstock is reacted with methanol to produce fatty acid methyl esters (FAME). This process is called transesterification.
Renewable diesel is made from the same feedstocks, but it has a different production process and is a distinct fuel from biodiesel. With renewable diesel, the feedstock is reacted with hydrogen during what is known as the hydrotreating process.
Biodiesel distinguishes itself from renewable diesel in three other key areas:
- Price — You will likely pay a premium for renewable diesel. Not only is biodiesel typically less expensive than renewable diesel, it often costs less than petroleum diesel.
- Supply — Part of the price difference is due to supply and demand. Renewable diesel production is lower than biodiesel’s in the U.S., and a lot of the nation’s renewable diesel supply goes to the West Coast. It is a challenge for fleets and retailers outside that region to get product.
- Emissions — Both fuels do a great job compared with petroleum diesel at reducing harmful pollutants. But biodiesel actually does a superior job of reducing most tailpipe emissions, including particulate matter, carbon monoxide and total hydrocarbons.
Biodiesel also performs well in diesel vehicles. It has higher Cetane and added lubricity compared with petroleum diesel. Also, many fleets are reporting that biodiesel’s cleaner burn, with less soot making its way to the aftertreatment system, is causing them to have fewer problems with diesel particulate filters.
“We haven’t seen any drop-off in miles per gallon, and the added lubricity biodiesel brings is good for the engine and for reducing maintenance costs,” says Jeff Corbin, director of maintenance and fleet operations with Mahoney Environmental, an Illinois-based company with a national fleet. “Being a cleaner burning fuel also helps with our aftertreatment systems in our trucks.”
And while fleets view renewable diesel having the same ASTM standard as petroleum diesel as a positive, biodiesel has ASTM standards of its own, ensuring the fuel is produced to the highest quality. Also, biodiesel blends up to B20 are a drop-in fuel that require no vehicle or fuel infrastructure upgrades.
The Right Fuel for You
Contact Renewable Energy Group at regi.com/contact-us or (844) 405-0160 for expert help in evaluating clean fuel solutions that can support your business and sustainability goals.
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Graph 1: fleet management activities
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José Miguel Fernández Gómez
I´m a Fleet Management expert, and the manager of Advanced Fleet Management Consulting, that provides Fleet Management Consultancy Services.