No OO grease for me, just repaired my two tooth gear box after trying OO and 600W mix. Steering was ok before but leaked, I’am thinking the grease couldn’t get to the sector bushings and then got so tight it took two arm’s to turn. I used a new sector housing with the roller bearings, now two finger steering (rolling down the road) IMHO a leaking gear box is better than OO grease in a gear box…….or rebuild your gear box.