For those that would like to try a hi-end 10w-40 and on the light side of a 40wt at that without ordering a boatload , paying shipping and all that the Kawasaki 4T 10w-40 Synthetic I believe with 99% certainty is the Motul E-Tech 100 Ester/PAO oil . It's packaged by Motul for Kawasaki and has identical wording on the label and........it even smells the same which is a smell you'll never forget If it is the Motul it is friction modded and has no higher than 1.2 sulphated ash per JASO MA and is working very well in my car at the time it seems . Even fuel mileage is great . I just bought a case of 12 at 5.68 a liter which was at a discount but I assure they are still making money . This oil is sooooooooooo close to being a 0w-40 it ain't funny . You know , the 0w-40 everyone wants imported to the States Just a heads up for those that think bike oils are expensive or forget to look at the bike shops and last but not least it's summer and can run a sweet 40wt for awhile in some engines .