Supercharged 4.6-Liter V8 has best power-to-weight ratio in industry. We tested Mercury's new 450-hp 450R outboards on 10 boats including the Cigarette Tirranna, Midnight Express 43 Open, Sea Ray SLX-R 350, and Formula 430 SSC. Read our full review here.
If your inboard(s) should fail, you have a very important--and potentially costly--decision to make. We help you decide if you should repair, rebuild, or remanufacture them.
How closely should your oil match your engine?