The most experience for the greatest value.

No direct injection engine has more experience, testing, or success under its belt than Mercury OptiMax. It's not surprising that OptiMax repeatedly leads every direct injection category – including power, fuel efficiency, reliability, and versatility. It all adds up to a complete line of power that delivers more, and delivers it better. OptiMax remains the best value on the water and a top choice of boaters.

Fuel Effeciency

Ultimate Efficiency

The innovative OptiMax DI system delivers the ultimate in efficiency, squeezing more miles and performance from every drop of fuel. The exclusive deflector-shaped pistons and combustion chambers enhance fuel economy and lower emissions by efficiently directing the fuel/air charge to the spark plug. The OptiMax Air Compressor provides a steady charge of cooled air for maximum combustion efficiency.


Superior Durability

OptiMax’s durable gearcase features a heavy-duty prop shaft and Mercury-patented dual water pickups on the front end of the torpedo for a constant flow of cooling water. It is specifically designed to give you impeccable handling and incredible top speeds. Dome-Shaped Piston Heads direct the fuel-and-air charge to the spark plug more efficiently, providing outstanding durability along with excellent running quality.

Long-Lasting Stainless

OptiMax is built with more stainless steel and corrosion-resistant components, which translates to saltwater durability, longer intervals between maintenance, and lower cost of ownership. In addition, our lower-pressure direct-injection system also provides superior component durability and longevity.


Powerful And Smooth

The OptiMax Two-Stage Direct Injection System provides a constant supply of atomized fuel and air while the Vapor Separator Tank (VST) ensures a constant supply of liquid fuel for the injection process. The result is unmatched throttle response, instant starting, and smooth performance.

Light And Fast

The V-6 design is slim and lightweight making it a great choice for almost any type of boat. It consistently outperforms other DI engines in holeshot, mid-range acceleration and top-end speed.

Leading Gearcase Technology

No other marine engine company has more knowledge about hydrodynamics and gearcase design than Mercury. We have the right gearcase configuration and technology to match any boating application. Our designs result in less drag – giving you better handling and performance.

A Prop For Every Purpose

No one offers a wider variety of propellers than Mercury Marine. From our four-blade, stainless steel Trophy Plus to the revolutionary Enertia, Mercury makes a prop that will maximize your boating enjoyment. Visit the Mercury Prop Selector to choose the prop that’s right for you.

HP/kW 250 / 184
Full throttle RPM 5500-6000
Cylinder Configuration V-6
Displacement (L) 3.0
Fuel Induction System 2-Stage Direct Fuel Injection (DFI)
Alternator Amp 60 amp / 756 watt (Belt-Driven)
Gearcase Ratio 1.75:1
Steering Big Tiller Compatible
Counter Rotation Available
Recommended Oil Mercury OptiMax / DFI Outboard Oil TC-W3
Recommended Fuel 87 octane compatible (up to 10% ethanol)
Engine Protection Operator Warning System Low oil level
SmartCraft Engine Guardian
Compatible with Smartcraft Digital Technology Yes
Shaft Length XL - 25 in (635 mm)
XXL - 30 in (762 mm)
Dry Weight * Lightest model available 505lbs / 229kg
CARB Star Rating 3

OptiMax 3.0L Engine Tests

There are currently no engine tests for this product line.

OptiMax 3.0L Resources

Buy the Books

You can order all available Mercury literature online or through any authorized Mercury dealer. Please have your outboard or sterndrive serial number before placing the order.

  • Operation, Maintenance and Warranty Manuals
  • Parts Manual
  • Service Manual
Purchase a Manual
Request a Brochure

Request printed brochures by mail or download as an electronic PDF.

Request a Brochure

OptiMax 3.0L Boat Brands

American AnglerVisit website
Avalon PontoonsVisit website
BackwaterVisit website
BerkshireVisit website
Blazer BassVisit website
Blazer BayVisit website
Blazer SportVisit website
Blue WaveVisit website
Carolina SkiffVisit website
CrestlinerVisit website
Custom WeldVisit website
East Cape SkiffsVisit website
Fiesta PontoonsVisit website
GlasstreamVisit website
Hampton PontoonsVisit website
Haynie BoatsVisit website
Lake & BayVisit website
Manitou Pontoon BoatsVisit website
Misty HarborVisit website
PlaycraftVisit website
Premier PontoonsVisit website
Renegade PowerboatsVisit website
Sea ChaserVisit website
ShearWaterVisit website
Silver ShipsVisit website
Simmons Custom BoatsVisit website
SmokercraftVisit website
Sonic PowerboatsVisit website
StarcraftVisit website
StatementVisit website
Striper BoatsVisit website
Sun ChaserVisit website
SunTrackerVisit website
Tahoe PontoonsVisit website
TideWaterVisit website
Triumph BoatsVisit website
UltracraftVisit website
Yar-CraftVisit website
Yellow Fin YachtsVisit website
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