Nick GrandyNick Grandy is GM vocational, Zonar Systems. From the AuthorTruckingTire Pressure Key to Reducing National Supply Chain Costs, Record-Breaking Gas PricesZonarFuel takes up 21% of the yearly $210,000 price tag needed to operate a single truck, equating to more than $44,000. Given that $44,000, tire pressure and the rolling resistance of tires can add an additional 25% to that cost, or $11,000.Page 1 of 1