The Steel Shield Technologies Transmission Shield is designed to protect moving metal parts in the transmission. Using advanced and non-corrosive boundary film technology, Transmission Shield protects against frictional abrasion in the planetary gears, extreme pressure torquing of the drive train components and ensures proper valve body operation. Other benefits include fuel savings due to reduced friction and increased fluid flow, reduced maintenance and downtime and extended parts longevity. According to the company, Transmission Shield also reduces operating temperatures by an average of 30 degrees F.