lol yea meant 0W, when it thickens up its almost a 40wt., And thats all BS no oil can go 25k km just out of the box. Its more complicated then that. You need Used oil analysis with TBN. But you start at checking it at like 7500 km and go up from there.

 

The reason the heads have to come off is because you need the ring compression tool to sit flush with the top of the block has you tap the assembled pistons into the block. You can't do that from the bottom because the surface is not flat due to the crank journals and the casting of the lower portion of the block.