Just finished changing the oil and adding Slick 50. Had a bit of trouble finding the right size of ring spanner 23 mm to small 24 mm to big . Was in and out of motor factors trying all sizes , got a socket that fitted. The rest was easy ,just slow filling it back up . Did use a plastic bottle with plastic tube , Will let you all know if this helps 2nd problem. Many thanks for the informatiom on site ..