PERFORMANCE HEAVY DUTY 1.5 MILLION MILES 10 YEARS FOR ALL HEAVY DUTY ENGINES † Requires proper maintenance including a complete cooling system flush and fill and subsequent top-off as needed with FINAL CHARGE PRO-SERIES 50/50 Prediluted Antifreeze/Coolant or a 50/50 mix of FINAL CHARGE PRO-SERIES Antifreeze/Coolant concentrate and water. For guaranteed protection, no other products or product supplements may be used. Visit www.peakhd.com for full warranty details. Follow OEM recommendations for specified maintenance.http://www.PEAKHD.com