Use a good quality motorcycle specific oil the right grade 10W/50 that meets the JASO specification as per the manual. As for filters, I would only recommend KTM’s, and that means from a dealers or online. KTM oil filter kit part number : 00050000068. 2019 KTM 790 Adventure. Contrasting to the Duke, the Adventure version has a little more scale to its overall dimensions and as a result doesn’t feel like a smaller capacity bike, like the Duke did. Measurements were taken using 1.25" (32mm) as the installed spring height. All 3 springs were tested form each clutch pack and the results were very consistent from one spring to the next within each set. ReKluse / KTM. The Rekluse springs each measured a consistent 37 lbs at 1.25". The KTM OEM springs each measured a consistent 46 lbs at 1.25". Lsaz.

ktm 790 duke oil capacity