my 04 Ninja 250R is a little beast, Ive not found a motorcycle specific oil yet that it doesnt like.. In a pinch once several years ago i used automotive oil when i noticed it was a .5qrt low. added valvoline white bottle at a gas station (late nite) then forgot about it the rest of the summer.. didnt miss a lick , of course this little mill only uses about 1.75 qrts to start with. As it is a shared sump bike im not a fan of using non bike oils (still havent tried HDEO's) one day i will.. so have no fear with this bike, from 0-100' temps 10-40 is a perfect oil, I did switch this bike over to "Blue Ice" coolant, made a noticeable difference on in town engine guage tempts.. 2 pennies