Shell GadusRail S3 EUDB is a premium extreme pressure grease for highly stressed Railroad Axle Boxes based on lithium thickener for large lubrication intervals. Shell GadusRail S3 EUDB is based on a high refined base oil and a lithium thickener.Shell GadusRail S3 EUDB is a premium extreme pressure grease for highly stressed Railroad Axle Boxes based on lithium thickener for large lubrication intervals. Shell GadusRail S3 EUDB is based on a high refined base oil and a lithium thickener.