Part throttle hesitation-3.0L X3

[shupadupa]

Hey all,

I have a 3.0L 2005 X3 6MT with about 70K on the odo. I have noticed over the past two weeks some part throttle stuttering/bucking (minor) while acclerating and generally around the 2800-3500RPMs (intermittantly through to red line) is when it begins. Honestly it feels like timing being pulled, or a little bit of fuel starvation. It doesn't only happen on part throttle either, it happens on WOT as well.

I have had all my inspections to date and am about 5000 miles from another oil change/inspection. I was wondering if there were any other experiences and maybe the cause was fuel pump/filter, bad plugs, etc. Also i don't have any indicators lights telling me something is awry?

This has occurred on 3 separate tanks of gas, and i have not put any "fuel injector cleaner" since i don't believe it truly works. So i don't think it is 'bad gas" and i always put in 93/94, yet from different stations/vendors.

Any thoughts? I am handy enough with my Evo so i can address minor repairs, so i thought i would poll the group to see if anyone had anything like this in their history?

Thanks a lot,

Jon