Lower fuel costs and increase your driving range with the RDS 60-Gallon Auxiliary Diesel Fuel Tank. This auxiliary fuel tank mounts behind the cab in your pickup. Made of no-rust diamond tread plated aluminum with internal baffles to reduce slosh, this fuel tank includes a secure fill compartment to prevent theft and a manual sight fuel gauge. Easily connects to pickups fuel line using optional install kit (sold separately).NOTE: For safety reasons, the filler neck on RDS fuel tanks prevents them from being overfilled. Actual usable tank capacity is about 95% of the total advertised gallons due to fuel expansion in warmer climates.• Features a lockable gas cap• Fits under most tonneau covers• Won't interfere with 5th wheel towing• Meets DOT standards for diesel and bio-diesel• Bolts into truck bed with integrated mounting tabs• Not intended to be used for gasoline• Made in USASpecsRDS #: 72771Capacity: 60 gallonsDimensions: 55"L x 20"W x 12-3/4"HFinish: Tread PlateOptional Diesel Fuel Line Install Kit (Sold Separately)Item #56511 Fits Chevy/GMC (1999-2010) 2" Fill LineItem #56512 Fits Ford (1999-current), Chevy/GMC(2011-current), Dodge (1999-2012) 1-1/2" Fill LineItem #85055 Fits Dodge (2013-current) 1-3/4" Fill Line Secure fill compartment to prevent theft Manual sight fuel gauge Easily connects to pickups fuel line using optional install kit (sold separately) | RDS 60-Gallon Auxiliary Diesel Fuel Tank Made in USA