I've had a difficult time trying to check the oil level of my trucks engine. It seems like when I pull the dipstick out of the tube it must be depositing oil along the sides of the tube because when I insert the dipstick and pull it out again there is oil all over the dipstck. It's very hard to determine where the oil line is. Since the dipstick is as long as it is, it's hard for me to get it out cleanly. I've looked on the back of the dipstick and it seems to show the oil level line better but is this an accurate mark? I've read most of the threads about the dipstick inaccuracies on the Cummins engine. My truck is a 2001. 5 and I'm sure that it has an accurately calibrated dipstick. Is there any special method to getting the dipstick out of the tube and re-inserted to get an accurate measurement? Thanks for your help.