WHAT TYPE OF OIL??

Sorry to deviate from the subject but how many miles is break in oil used prior to oil change (500 miles?). Has only seen the dyno at this point. Don't see this car getting very many miles on it prior to me changing diff. Drive train is incomplete so will sit in garage for extended period of time once I remove the 7.25 diff. Will see engine runs at monthly intervals but not on the street.