Hot Shot's Secret performed a year long test using Diamond Fleet motor oil infused with FR3 and added up the savings in fuel economy on a semi-truck that drives 100k miles/year. With a 4% increase in fuel economy the savings added up to $3,665 for the year based on $6.009 per gallon.

A 4% increase in fuel economy saves the owner operator 601 gallons per year and this factored in the cost of the motor oil at 80 gallons per year for a total of $2,956. Just think of the savings for two or more trucks that can be accomplished.