Touted as one of the most powerful outboard marine engines to date, Seven Marine has made its mark on the boating industry.  Advertised to put out 557 horsepower at the prop shaft, this beast is all muscle.  Blue Water Yacht Sales and Service in Hampton, Virginia is now selling and servicing these monsters.  When it comes to oil, this fuel injected marinized 6.2L supercharged small-block V8, managed by GM’s powerful MEFI 6 engine controller needs a lubricant that is up to the challenge.  AMSOIL Synthetic lubricants was their oil of choice to meet this challenge.  Powerful engines can be tough on a lubricant and with as much money invested in this motor, AMSOIL is sure to not leave you "dead in the water".