Marine Services

Oil and Filter Change

Factory-spec oils and filters, done on the dock or on your trailer by certified technicians.

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What We Offer

Marine Engine Oil Service

Regular oil and filter changes are the single most important thing you can do to protect your marine engine and extend its life. At Sweetwater Performance Center in Oshkosh, Wisconsin, we perform oil and filter changes using all factory-recommended oils and filters, completed by certified technicians who know your engine inside and out. Boaters across the Midwest bring their boats to us specifically because we do it right the first time.

For your convenience, we can service your boat directly on the dock or on your trailer. No need to unhitch or go through a complicated drop-off process. Our technicians handle the job quickly and cleanly so you can get back on the water without losing a day of the season.

Whether you have a stern drive, inboard, or outboard engine, our team is equipped to handle it all. We follow manufacturer-specified service intervals and use only the correct viscosity and oil type for your specific engine, keeping your warranty intact and your engine healthy season after season. From Wisconsin's Fox Valley to boaters driving in from Illinois, Iowa, and beyond, Sweetwater is the service stop that gets it done right.

Factory-Spec Oils and Filters
We use manufacturer-recommended products to keep your engine performing at its best.
Dock or Trailer Service
We service your boat wherever it's most convenient, in the water or on the trailer.
All Engine Types
Outboard, inboard, and stern drive engines serviced by certified technicians.
Warranty Compliant
We follow manufacturer service intervals and document everything to protect your warranty.
Schedule Your Service
Book an Appointment
Why Choose Us

The Sweetwater Advantage

Certified Technicians
Factory-trained on all major engine brands for reliable, expert service.
Convenient Location
Full-service marina facility right on the water in Oshkosh, WI.
Fast Turnaround
Most oil changes are completed quickly so you spend more time on the water.
Ship Store On-Site
Parts and accessories available on-site while your boat is being serviced.
Get Started

Schedule an Oil and Filter Change

Fill out the form to schedule your oil change. We service boats from across Wisconsin and the greater Midwest and will get back to you promptly to confirm your appointment.