I run engine pans for all the reasons above and a bonus is I have a first place to look for all dropped nuts bolts sparkplugs tools etc, if not in the pan look below it on the "downhill" side as a starting place, yeah I have uncle artie [as in arthritis] and always take multiple nuts bolts etc as I will drop 2 or 3 before I make the connection! They can't cure it so I just outsmart it!!!!!