Just recently, I've noticed slight knocking, no more than two or three seconds, when I first start up the Burb. I've checked oil levels, everything seems to be fine. I use quality oil. Normal runs between oil changes I don't see much oil consumption, if any at all. Doing some research, do I have the dreaded piston slap? If so I suspect there is nothing I can do about it, but just wondering if any others experience this. My ride is a '98 with 95k on the odometer, so pretty low mileage for the year.