We also observed features of motor oil during the warming up. This kind of
motor oil is used for producing other kinds of industrial oils. Considering
to its thermal coefficient we expected a faster warming up period and having
higher temperature of the solution, which was experimentally confirmed. We
stopped the experiment after 4 minutes and 24 seconds. The aim was to
compare thermal conductivity in temperature lower than 100 oC. The oil
warmed up much faster than water and the warming curve was softer than clean
water curve. Temperature differences between the sensors in the bottom and
upper side were bigger - we expected that. You can see it on the final
screenshot.