Profile: Power Service Products is a manufacturer of the most technologically advanced diesel fuel additives available in the market. Power service diesel additives are used by more large fleets and fuel marketers than any other additive. We manufacture the products from diesel-powered cars and pickups, to trucking fleets and fuel marketers, for optimal diesel performance and profitability. We started developing products to give fuel-jobbers and truckstops the competitive edge they needed for premium fuel sales.