GM called them spray oilers - "rod squirters" (à la Jerry) is a much better term than "splash oilers" (splash oil lubrication was much more primitive). The spray oilers and rod dippers
lubricated the rod bearing surfaces on 216 and early 235 stovebolt engines.
On early Stovebolts, splash oiling was a term better used to describe how the camshaft/lifter contact-surface, cylinder walls, piston, and piston pins were lubricated.
