MC Marine Service Center
Winterization
Protect your engine through the off-season, whether you run an outboard, an I/O, or a stern drive.
Schedule WinterizationOutboard Winterization
Choose The Right Level Of Service
Our outboard winterization service comes in a few levels depending on how complete you want the protection to be, and whether you have a kicker engine that needs to be covered as well.
Basic Winterization
V6 and V8 carb engines
- Fuel tank stabilized with Mercury Quickstor
- Engine run-up
- Engine fogging
- Cooling system water drained
- Courtesy inspection of boat and trailer
Premium Winterization
Includes antifreeze
- Fuel tank stabilized with Mercury Quickstor
- Engine run-up on remote fuel tank mix for complete protection and lubrication of internal fuel components
- Engine fogging
- Cooling system water drained
- Courtesy inspection of boat and trailer
Outboard Engine Winterization
Standard outboard service
- Fuel tank stabilized with Mercury Quickstor
- Engine run-up on remote fuel tank mix
- Engine fogging
- Courtesy inspection of boat and trailer
Kicker Engine Winterization
Secondary outboard engine
- Engine run-up on remote fuel tank mix for complete protection and lubrication of internal fuel components
- Engine fogging

I/O & Stern Drive
Winterization For I/O And Stern Drive Boats
I/O and stern drive engines are winterized with the same goal as any other engine going into storage for the season, protecting the cooling system, the fuel system, and the engine itself from cold-weather damage. That means draining raw water from the cooling system and replacing it with antifreeze where required, so nothing is left behind to freeze and crack a block or manifold.
The fuel system is also stabilized ahead of storage, and a general inspection of the engine and drive is performed so any issues can be flagged before storage rather than discovered as a surprise next season.
Off-Season At The Marina
Winter On Stockton Lake

Questions
Winterization FAQ
Each tier covers a different level of protection, from a basic service through our most complete premium package, plus a separate option for kicker engines. See the tier comparison above for what is included in each.
Yes, for any engine with a raw water cooling system in a climate that freezes, since standing water left in the system can expand as it freezes and cause serious damage.
Fill out the form below or call MC Marine at (417) 995-2017 to get on the schedule before temperatures drop.
Get Started
Schedule Your Winterization Service
Fill out the form below and our service team will follow up to get you on the schedule.
