10W30 4-Stroke Outboard Marine Engine Oil - NMMA FC-W Certified
- Dispatched in 2-3 days
- 30 Day Return Policy
- In stock, ready to ship
- Backordered, shipping soon
10W30 4-Stroke Outboard Marine Oil
Premium Quality NMMA FC-W Certified Lubricant
This 4Boats premium 10W30 4-stroke marine engine oil is engineered specifically for the harsh demands of the marine environment. Unlike standard automotive oils, this formula contains advanced rust inhibitors and specialized additives designed to maintain viscosity under high-load, high-RPM operation and protect against saltwater atmospheric corrosion.
Key Features
- ✔ Excellent anti-wear characteristics
- ✔ Superior saltwater corrosion protection
- ✔ High shear stability for high RPM use
- ✔ Reduces sludge and engine deposits
- ✔ Improved cold starting performance
Technical Specs
| Viscosity: | SAE 10W-30 |
| Certification: | NMMA FC-W / FC-W (CAT) |
| API Ratings: | SM / SL / SJ / SG / CF-2 |
| Base Oil: | Semi-Synthetic Blend |
Compatibility / Fitment Guide
| Engine Brand | Type | Notes |
|---|---|---|
| Yamaha | 4-Stroke Outboard | All models requiring 10W30 |
| Mercury / Mariner | FourStroke / Verado | Excluding V10/V12 specific reqs. |
| Honda Marine | 4-Stroke Outboard | Fully compatible |
| Suzuki | 4-Stroke Outboard | All 10W30 applications |
| Tohatsu / Nissan | 4-Stroke Outboard | Fully compatible |
OEM Cross Reference
| Mercury / Quicksilver | 92-8M0078625, 92-858045K01 |
| Yamalube | LUB-10W30-FC-12, LUB-10W30-FC-04 |
| Sierra | 18-9420-2 |
| Honda | 08211-999-100 |
Questions & Answers
Is this a genuine original part?
This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.
How do I know if it is compatible?
We recommend checking the SKU/MPN and Cross Reference list provided above. If your original engine manual specifies 10W-30 FC-W oil, this is the correct product.
Can I use standard automotive 10W30 instead?
No. Automotive oils are not designed for the constant high-RPM loads or the moisture-rich, salty environments of marine use. This FC-W certified oil includes specific additives to prevent corrosion and oil film breakdown that automotive oils lack.
Note: Please verify your engine's oil capacity and viscosity requirements in your owner's manual before purchasing. 4Boats UK delivers high-quality marine maintenance solutions nationwide.
For the products under £150 the shipping is £6.99.
Free delivery for most items over £150.
