I am far from a petrochemical engineer, but I do build drones which use high performance piston engines. We do use the Joe Gibbs break in oil when breaking in engines. We do not pre-heat the oil, and the engineer in charge of the engines is as anal as all get out.
Our protocols do call for warming up the engines at specific rpm settings prior to flight. As well as changing oil between flights.
These drones do operate in environments with a bit more sand than the average American muscle car experiences, and they do just fine.
Plenty of people break in flat tappet cams every day without pre-heating the damn oil.
Preheat your oil, or not. It's your call.
