So I've been using the Shell Rotella T Synthetic 5w40 in my 2007 ZZR600. Well it was time for an oil change so I picked up a jug. But when I brought it home, I noticed it was in a slightly differant bottle than the last Rotella T I bought. So I went online and saw that this Rotella was 'new and improved'. It was 'Shell Rotella® T Synthetic with API CJ -4 Technology'. It has API SM cerification. My owners manual says I should use an API SH, or SJ, or SL. Can I still use the new Rotella T?