Formulated for gears in heavily loaded transmissions/gear boxesFor Big Twin transmissions and final drivesRecommended for 4, 5 & 6 speed Big Twin transmissionsExtreme pressure additives to reduce component wearDistinctive red color for leak detectionWear protection extends gear lifeEasier to find neutral & reduces/eliminates common V-Twin transmission “clunk”Quiets gear whine and improves shifting