Best if you don’t let it idle, as soon as you get oil pressure it’s best to keep it in the 2000 rpm range as that is where you get the best lubrication to your bearings. It’s also best to avoid short drives as you need to heat the oil to rid it of moisture and water. Moisture kills oil and wrecks engines. Heat cycling kills oil. I have had my oil tested to tell when to change it acouple of times to give me the longevity of it’s life. This was in my daily driver, 40 minutes to work each way. Testing lab results indicated oil change intervals with Amsoil was 15-18k the way I was driving.