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
As for filters, I would only recommend KTM’s, and that means from a dealers or online.
KTM oil filter kit part number : 00050000068