STP® OIL TREATMENT FOR GEARBOXESReduces friction and noiseSTP® Oil Treatment for Gearboxes is designed to lubricate hard to reach areas including gearboxes, transmissions, differentials, back axles and steering boxes in one easy application to provide a smoother gear change.DIRECTIONSUse STP® Oil Treatment for Gearboxes at or betwe... Read more...