On a 08 yz450. The manual says to run the bike for a few minutes and then drain the oil. Do you guys do it this way? I was thinking if I was to drain it when cold the oil would already be down in the bottom of the engine. I also have a question about oil specs. I plan on using Spectro Golden4 semi-synthetic 10w40. I think a read that this is one of the oils that Greyracer recomends as proven to hold up? The manual calls for API sg or higher, JASO standard MA. The spectro says API sl. Meets MA. Is this oil specification meeting the requirements?