Like most I keep the level between the marks, stick resting on the threads, bike on the centerstand, or sometimes on the ground balanced "upright". Also like most my motors use some oil. Took restomod to the SE rallye, it had about 1500 miles on the oil when I left. Had probably added a quart or more in those miles. Was on the lower mark when we unloaded at Iron Horse, put in about 1/3 quart and 300 miles later when I started home it was at the lower mark again. So I left it there and checked level at gas stops. Run home was mostly two lane, run at 50 to 70 MPH 4000 to 5000 RPM was typical. 950 miles home, here's the thing; level didn't change. Still at the lower mark, round numbers 1,000 miles, no oil use.. So the Plan is to change oil and fill ONLY to the lower mark. See what happens next season. This motor was in a 5500 mile untouched stock special. Those 5500 miles were all put on the the first couple years from new, then it sat 30 years until I installed it in resto in 2015, put on another 10,000 miles since. Stock airboxes with crankcase vent tubes, UNI foam filters, stock carbs, slightly up jetted, and stock exhaust for the last 3000 miles. I don't baby my motors, I'm not a drag racer or flogger but like to ride with enthusiasm. Pulled plugs when I got home And did a cold compression check Two years ago, at 26,000 R142 L148 same gauge now at 32,000 R153 L159 Been using mostly Valvoline VR1 20-50 since the wake up. This motor is pretty drip free, it got the head stud retorque at wake up. gggGary valve cover 0-rings, tach drive seals replaced, clutch cover, cam seals, are still factory. 1500 miles since last engine cleaning. Anyone else leave their oil level on the lower mark? What's your typical oil use?