FuelLift offers a unique selling proposition to its users. Namely, a positive ROI with every gallon they use. The breakeven point when diesel fuel prices hover around $5 per gallon is close to 1.5% fuel savings. We routinely deliver 10% savings or more, so you can do the math. It makes sense to use FuelLift because it more than pays for itself and it reduces carbon buildup on filters, too.