Martini Marine WaveGuard 10w40 is a premium semi synthetic marine engine oil, purpose-built for today’s high-performance outboard motors and personal watercraft. Formulated with advanced anti-wear additives, rust inhibitors, and saltwater-resistant chemistry, WaveGuard provides dependable protection for 4-stroke engines operating in demanding marine conditions.

Designed to meet the latest NMMA FC-W® standards, it delivers fast oil circulation on start-up, superior thermal stability at high RPM, and outstanding resistance against corrosion in saltwater environments. Whether you’re powering fishing boats, runabouts, jet skis, or inboard/outboard craft, Martini Marine WaveGuard 10w40 ensures smooth performance, longer engine life, and peace of mind on the water.

Performance Benefits

✅ Semi synthetic formulation for balanced performance & protection

✅ Excellent saltwater corrosion resistance

✅ Superior high-temperature wear protection at sustained RPM

✅ Enhanced rust inhibitors for marine storage conditions

✅ Fast oil flow at cold start for reduced engine wear

✅ Suitable for leading brands: Yamaha, Suzuki, Mercury, Honda, Tohatsu, Evinrude & more

✅ Ideal for outboards, inboards, stern drives & personal watercraft (PWC)

Performance Standards

• NMMA FC-W

• API SL

• JASO MA (wet clutch compatibility)