1 gallon of BluePrint Engines, High Performance engine oil. Formulated specifically for the high horsepower BluePrint 1000 Horsepower 632! Suitable both during and after your 500-mile break in and tested extensively and exclusively during development of the PS6321CTC and PS6321CTF engines. Featuring a race proven 20W50 weight, our Engine oil is formulated specifically to meet wear and contaminate concerns associated with high performance engines. Contains zinc and phosphorus and extends oil film capacity for ultimate protection.