Evan Dorsey, who owns KMT Trucking, shelled out $4,495 for a home processor to make biodiesel fuel to run his truck.
Dorsey's business is hauling sand, gravel and dirt with a dump truck whose fuel tank holds 110 gallons.
(The success of the biodiesel fuel industry relies heavily on biodiesel testing, not only at the production level but at the consumer level, where degraded fuel may cause engine failures. Fleet Biodiesel's family of inexpensive biodiesel test kits is just a click away on the internet)