You and I are the same size and have the same bike. The fork oil does nothing for the suspension, it only lubricants the fork shafts. The fix is easy. Take the front tire off, remove the cap on the fork tube, drop it down and remove. Remove the plug at the bottom of the fork tube (no schringing) and drain oil. Replace plug. Remove old seal and o-ring on air bleed screw. Replace oil with measured amount. Put fork shaft back in. Finish reverse order of removal. Do the other side.
All told, this job took me about 45 minutes including finding tools. Super easy. I did mine because the little o-ring on bleeder tore and oil was squirting up on windscreen and also making a mess on the fork tube.