Boaters Beware: Low-Price ‘Regular 88’ Gas is Bad for Boats Regular 88, also known as E15 (15% ethanol) will harm the boats motor and void the engine manufacturer’s warranty. Read More BBZ Content PostsAugust 29, 2019Boat Engines, Fuel, Fuel Additives, Maintenance, Warning, Public Announcement, Marine, Boat US, The Fishing Wire, Article, Derrek Stewart