DESCRIPTION Top Dog XDO is a premium diesel engine oil meeting the latest in lubrication technology. It holds global approval from Mack Trucks USA and Volvo Switzerland. It is recognized as being an official factory fill lubricant. Top Dog XDO utilises the latest specification in diesel additive technology. Top Dog XDO is ideally suited for mixed fleets including American European and Japanese diesel engines. Top Dog XDO can be used in stationery engines, heavy duty earth moving and road transport applications as well as light commercial diesel applications and Allison C4 transmissions. Top Dog XDO can also be used in late model petrol engines both stationary and in mixed vehicle fleets