I was reading about the purpose of engine assembly grease and apparently it's purpose is to provide the initial lubrication when first starting up the engine until the crankcase oil has time to coat everything.
But how is this any different from starting up a car engine that has been in storage long enough for all the oil to run off the parts? If you need to have a disassembled engine to coat everything inside with assembly grease how come I never hear anything about needing to disassemble a stored engine to lubricate it before starting it up?