New Motor Installed.. Oil Question..?

[Lexus300Stock]

hello.. i had a new motor installed in my is300.. i was wondering.. when do i change the oil again in it?? 500 miles? 1,000miles? 3,000 miles?? ,, the oil that is in there right now is conventional oil from lexus.. When can i change to synthetic? do i need to be easy on the car for first 500miles or what??? give me pointers.. thank you!

-flea

[smooth1]

I always run conventional oil in it for about 1000 miles, then switch it to synthetic. This allows the valves to seat first, and the bearings and journals to fit up together and break in properly.

[Lexus300Stock]

thanks guys for ur help and opinions!! apperciate it!!!