---
product_id: 373123889
title: "ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon)"
brand: "ultra 1plus"
price: "€ 227.86"
currency: EUR
in_stock: true
reviews_count: 8
category: "Ultra 1 Plus"
url: https://www.desertcart.ie/products/373123889-ultra-1plus-sae-25w-40-synthetic-blend-4t-marine-engine
store_origin: IE
region: Ireland
---

# 25W-40 Viscosity Grade Advanced Corrosion & Wear Protection NMMA FC-W Certified Marine Oil ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon)

**Brand:** ultra 1plus
**Price:** € 227.86
**Availability:** ✅ In Stock

## Summary

> 🛥️ Keep your marine engine running smoother, longer — don’t get left behind!

## Quick Answers

- **What is this?** ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) by ultra 1plus
- **How much does it cost?** € 227.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/373123889-ultra-1plus-sae-25w-40-synthetic-blend-4t-marine-engine)

## Best For

- ultra 1plus enthusiasts

## Why This Product

- Trusted ultra 1plus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Tested Tough:** Rigorously tested to ensure unbeatable corrosion and wear protection
- • **Friction Fighter:** Minimizes internal friction to maximize power in fresh & saltwater
- • **Ultra Synthetic Blend:** Precision-formulated for superior wear resistance and engine longevity
- • **Marine-Grade Power Boost:** Exceeds NMMA FC-W specs for peak marine engine performance
- • **Tailored for Sterndrive & Outboard:** Engineered specifically for marine sterndrive and outboard engines

## Overview

ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil is a premium marine motor oil designed to exceed NMMA FC-W standards. Its advanced synthetic blend reduces friction and protects against corrosion and wear, specifically engineered for sterndrive and outboard engines. Available in a 4-gallon size, it ensures reliable, long-lasting performance in both fresh and saltwater environments.

## Description

Buy ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon): Motor Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great for all engines - Great price,can’t wait to use in my tow truck
Review: Good oil - Decent oil at a decent price. I have used this oil for a few seasons in my boat. Holds up well. No complaints.

## Features

- EXCEEDS NMMA FC-W SPECIFICATIONS: Ultra1Plus 25W40 marine oil is formulated to meet and surpass NMMA FC-W standards, ensuring superior performance for marine engines.
- ADVANCED ULTRA SYNTHETIC BLEND: Features an advanced ultra synthetic blend fortified with a precisely balanced marine-specific additive package for exceptional wear and corrosion protection.
- MINIMIZES INTERNAL FRICTION: Reduces internal friction, improves engine longevity, and delivers maximum power in fresh and saltwater environments.
- ENGINEERED FOR STERNDRIVE & OUTBOARD APPLICATIONS: U1P 25w-40 Marine Engine Oil specifically engineered for sterndrive and outboard applications, surpassing FC-W and FC-W Catalyst Compatible requirements for enhanced reliability.
- RIGOROUSLY TESTED FOR SUPERIOR PROTECTION: Extensively tested to guarantee superior protection against corrosion and wear, ensuring prolonged engine life and optimal performance in extreme conditions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09FB2K53S |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #63,096 in Automotive ( See Top 100 in Automotive ) #471 in Motor Oils |
| Brand | ULTRA 1PLUS |
| Customer Reviews | 4.8 4.8 out of 5 stars (213) |
| Date First Available | April 29, 2020 |
| Flash Point | 446 Degrees Fahrenheit |
| Item Weight | 31.8 pounds |
| Item model number | USB25404TFCW-BG |
| Manufacturer | Ultralub |
| Manufacturer Part Number | USB25404TFCW-BG |
| Model | SAE 25W-40 Synthetic Blend 4T Marine Motor Oil FC-W |
| Package Dimensions | 16.5 x 11.7 x 9.7 inches |
| Size | 4 Gallon (16 QTS) |
| UPC | 810050656276 |
| Vehicle Service Type | Sterndrive, Outboard |
| Viscosity | 25W 40 SAE Grade |

## Product Details

- **Brand:** ULTRA 1PLUS
- **Liquid Volume:** 4 Gallons
- **Package Information:** Bottle
- **Vehicle Service Type:** Sterndrive, Outboard
- **Viscosity:** 25W 40 SAE Grade

## Images

![ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) - Image 1](https://m.media-amazon.com/images/I/813ovuY5pKL.jpg)
![ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) - Image 2](https://m.media-amazon.com/images/I/818jhJcNspL.jpg)
![ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) - Image 3](https://m.media-amazon.com/images/I/81SmhhEW5KL.jpg)
![ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) - Image 4](https://m.media-amazon.com/images/I/81hwRDAzTkL.jpg)
![ULTRA 1PLUS SAE 25W-40 Synthetic Blend 4T Marine Engine Oil NMMA FC-W (4 Gallon) - Image 5](https://m.media-amazon.com/images/I/81sY33DahTL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great for all engines
*by R***R on December 27, 2025*

Great price,can’t wait to use in my tow truck

### ⭐⭐⭐⭐⭐ Good oil
*by C***E on September 22, 2025*

Decent oil at a decent price. I have used this oil for a few seasons in my boat. Holds up well. No complaints.

### ⭐⭐⭐⭐⭐ Economical Marine Oil
*by T***K on September 24, 2025*

Great price on Marine Oil. Meet all API specs for 25w40 marine oil.

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**Shop now:** [https://www.desertcart.ie/products/373123889-ultra-1plus-sae-25w-40-synthetic-blend-4t-marine-engine](https://www.desertcart.ie/products/373123889-ultra-1plus-sae-25w-40-synthetic-blend-4t-marine-engine)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-24*