Lots of discussion on oil change frequency, but how often are people checking the oil level. I have been checking it every 300 miles and have added a few ounces when it starts to get below the half way mark. I try to run it below the full mark as I don't want to overfill. Also, is it just me or does anyone else have trouble reading the dipstick? I can't always get a clean read on that black plastic. As a check, I use a 1/4", 12" long wooden dowell that I stick into the oil tank. It seems to be full at 8" and low at about 7".