GB GERION® EXTRA 75W-90 SS has been developed using the highest quality synthetic and virgin mineral base oils, combined with advanced additive systems, as a Total Driveline Lubricant (TDL) for use in both synchromesh transmissions and final drives. It has been designed to withstand the severe conditions imposed by commercial vehicle operations and provides total reliability at all times. GB GERION® EXTRA 75W-90 SS provides improved fuel economy and higher levels of long-term wear protection over conventional SAE 90 automotive gear lubricants. The use of a single lubricant for synchromesh gearboxes and final drives allows product rationalisation, resulting in cost savings and reduced risk of mis-application.