Boy your are giving them more credit than I do. Especially when one runs around for over 20 minutes looking a metric adjustable wrench.The knuckleheads at the Big Box stores have no idea as to the different types of bar oil. You’ll have to go to a chain saw shop dealer to find the two types. Might be worth your time and money to find one that has both types and ask if they would do a quick adjustment on your saw for you. The good guys will do this for little to nothing if you buy the oil from them.