Originally Posted By: Oil Changer
Look at the 5:00 mark. The "Castrol" bottle is green during the pour and has blue tape wrapped around the bottle.
When doing the first test, people said the differences in pouring speed was influenced by the different shapes of the bottles, the length of their necks, and the size of the bottle opening. To address that this time, they took the oils out of their original bottles, and put them all in the same size/shape bottles. Looks like they went with the QSGB shaped bottles, and put the Castrol in an oil QSGB bottle for the test. The blue tape probably has Castrol written on it so that they know what oil is in the bottle (since they changed bottles).