So I helped a friend changed his oil on car the other day. Everything went smooth, he was shocked at how easy and simple it was. One thing he didn't like was the noise the engine right when you start it up. You know that 1-2 second sound of a dry engine before the oil gets pumping. Well he started freaking out and asking me how to avoid it and if any damage is done. Why he hears this after the oil change but not after the car sat overnight. I've done many oil changes in my life, but i never recalled hearing a engine start up like his 2010 camry did, those 2 seconds. I know the sound and this one was just louder and bad sounding. The cars in my sig all dont sound like that, I know it takes a few seconds to oil to circulate, I prelubed a little into his oil filter housing and the rest was just poured down the oil filler hole. What else can be done?