Descriptive guide for replacing the oil and oil filter on a 2013 KTM Duke 690. Obtain 2 litres of Bardhal XT$ SAE 10W60 oil, oil filters HIFLO HF155 + HF157. Position the motorcycle on the side stand. Place a container for collecting the waste oil under the engine. Using a ratchet and a 13 mm socket, unscrew the oil drain plug located under the engine on the left side. With a 17 mm socket, unscrew the other plug located next to the first one. Allow all the oil to drain. Remove the filter cartridge from the 17 mm plug hole, clean thoroughly and reposition it, then screw the plugs back in. Using a ratchet and a 10 mm socket, unscrew the two screws securing the oil filter cover located above the casing on the left side. Remove the filter and replace it with the new one. Open the oil filler cap located on the lower left side of the casing. Using a ratchet and a 10 mm socket, unscrew the other oil filter cover, which has a tube leading to its centre. Replace the filter. Pour in the oil using a funnel, referring to the level inspection hole located under the casing. The manufacturer specifies 1.7 litres of oil. Check after the first start.