It's difficult to get a consistent oil level reading because the dipstick guide tube enters engine block at the back near the firewall. A section of the tube is very close to horizontal. If I rotate the dipstick 90 degrees, it cannot be inserted past the first bend in the guide. I kept probing and rotating the dipstick until I reached a point where it would barely get past the guide bends. Upon removing the stick, one edge had a long trail of oil, however the opposite edge was clean. Wiping the stick on a paper towel as shown in the above YouTube video confirmed oil level is right at full with a -50140 dipstick part number. Two more measurements made without probing and rotating showed oil level almost 1 cm high. Vehicle was cold and had not been driven for 2 days, which is very rare.