440MagnumAnd for the OP... go ahead and change the oil. Its NEVER too early to dump the break-in fill and put a new filter on there to catch the rest of the junk. [/quote said:+1 With sand used for casting the block, metal filings etc. from machining the block, and wear metals shed from breaking in the engine, I'd dump it early. This horse has been beaten to death here, and the nay sayers will state engines live long lives not dumping the oil early. Take your pick. I dump it early.