Free Shipping Add to Cart MAX Mileage Diesel Fuel Additive & Engine Treatment 1 Gallon Pittsburgh Power MSRP: Now: $266.95 Was: MAX Mileage Diesel Fuel Additive & Engine Treatment *This additive is not safe to use with all plastics, please make sure your measuring device is fluorinated or glass. Treat your rig to a little R&R with Pittsburgh Power's MAX mileage fuel... MSRP: Now: $266.95 Was: Add to Cart