So far as I can tell, the whole purpose for Lestoil in Moose Milk is to work as a surfactant. It may incidentally provide some lubrication but in as much as it is only 10% or less of the composition of Moose Milk, I would expect the lubrication it may provide will be only incidental. The water soluble oil is the main lubricant in Moose Milk. Since the Lestoil is primarily a surfactant, and Murphy's Oil Soap and Lestoil are similar products whose cleaning abilities are provided largely by their surfactant action, I would expect that either would work equally well as the surfactant in Moose Milk. Their compositions are somewhat different as noted in stumpkillers post but both are simple cleaners, not significantly different products. But, I must add this caveat, I have not compared one against the other to see if my assumption is correct. It might be an interesting test providing I can come up with an easy way to quantify the performance of each and a way of measuring this difference. Does anyone have any suggestions as to how to quantify their performance and to measure this quantification so it can be evaluated statistically? Compare velocities? Compare group sizes? Compare how much fouling is removed by observing wiping patches using each of the products? If the latter is used, how could one compare the amount of fouling on each patch in such a way that provides an accurate and true measurement? The only balance that I have is a simple power balance that may or may not be accurate enough to weigh the differences in the weight of the patches.
Shall we do this or just speculate as to which is the best cleaner to use? Another alternative would be to simply do it Dutch's way. I am one who holds Dutch in very high regard and would have no objection to simply doing it his way. But doing an experiment such as I have proposed is certainly tempting.