They are both JASO MA2 API SG/SF/SI and the such. I know Kawasaki doesn't make their own oil and I trust Valvoline and Castrol as I run them in my cars. I figure for the first oil change dino oil is the way to go. These are both on sale for $5 a quart at Pep Boys, can't beat that! I may switch to a synthetic in an oil change or two.