I believe there can be a benefit, with a mechanical fuel pump requiring a little extended cranking after a car has not been run for quite a while.
In the cranking time the oil is being forced around the slow rotating of the engine's internals before it fires, hence providing some early lubrication to dry surfaces.
There is a video on Ian Tyrell's website of the benefits, although he in the main is talking about high end performance classic cars ( Ferrari, Lamborghini etc), but the same thing applies.
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