For your engine I can not answer, but for a Tay (620 & 650), we give the following minimum times based on oil temperature: < +20 Celcius = 4 minutes, +20 to +30 Celcius = 3 minutes, > +30 celcius = 4 minutes.
Between +20c to +40c, with the Tays it's 3 minutes, and above +40c it's 2 minutes.