Mine was eating oil when I bought it used, took it to the dealer, found out the block was already replaced less than 1k miles(imagine my anger?)...the master tech I personally know there had me run 2 oil changes on REGULAR DINO oil, no ester or synthetic, now its burns almost NONE, only what I can smell out the tail pope at 7300 RPMs.
break it in on regular oil, should be good to go, its taken 12k hard miles now with no problems, also an oil cooler helps IMO, keep the temps down less likely to burn off. Im think 5w-40 would be a good idea too, but shiz is expensive!