New Outboard Summer Promotion Deals | SHOP NOW
End of Content.
Trent Lane, East Bridgford, Nottinghamshire NG13 8PF
End of Content.
New Outboard Summer Promotion Deals | SHOP NOW
New Outboard Summer Promotion Deals | SHOP NOW
End of Content.
Trent Lane, East Bridgford, Nottinghamshire NG13 8PF
End of Content.
New Outboard Summer Promotion Deals | SHOP NOW
This guide explains the different types of two-stroke oil used in outboard engines—covering both carburettor and direct injection systems—and highlights what you should not use.
The standard specification for outboard two-stroke oil is TC-W3. This rating is issued by the National Marine Manufacturers Association (NMMA), which tests oils to ensure they meet strict performance criteria.
TC-W3 is a performance-based standard, requiring oils to pass a range of tests, including fluidity and miscibility, rust and corrosion protection, material compatibility, and overall engine performance such as preventing ring sticking and carbon build-up.
Most major oil manufacturers produce TC-W3-compliant oils suitable for outboard motors.
While TC-W3 oils are suitable for most engines, some outboards benefit from more specialised oils. These are typically semi-synthetic or fully synthetic and are designed for high horsepower engines, direct injection systems, and heavy-load or high-performance use.
Do not use motorcycle or garden equipment two-stroke oil in an outboard engine. Although they may seem similar, these oils are formulated very differently and can cause serious issues.
Outboard engines operate at lower and more consistent temperatures than motorcycles. TC-W3 oils are designed specifically for this environment.
Outboards use needle and roller bearings, which require different lubrication properties than those found in motorcycles.
TC-W3 oils use ashless detergents, which burn cleanly and reduce carbon deposits. Motorcycle oils may leave ash and deposits that can damage engine components.
Marine engines are exposed to moisture and salt, so TC-W3 oils include additives to prevent rust and corrosion—something motorcycle oils typically lack.
Always use TC-W3-certified oil in your outboard engine and choose a more advanced oil if your engine requires it. Avoid using oils designed for non-marine applications, as they can lead to reduced performance, increased wear, and potential engine damage.
End of Content.
Sunday: Closed
Monday: Closed
Tuesday – Saturday: 9:00 AM – 5:00 PM
Arrangements can be made out of business hours. Please contact beforehand.
