---
product_id: 9466298
title: "Sierra, SAE 30 Full Synthetic Oil (5 Quart), 18-9410-4"
brand: "sierra"
price: "¥32730"
currency: JPY
in_stock: true
reviews_count: 8
url: https://www.desertcart.jp/products/9466298-sierra-sae-30-full-synthetic-oil-5-quart-18-9410
store_origin: JP
region: Japan
---

# Improves fuel economy Superior engine protection Full synthetic SAE 30 viscosity Sierra, SAE 30 Full Synthetic Oil (5 Quart), 18-9410-4

**Brand:** sierra
**Price:** ¥32730
**Availability:** ✅ In Stock

## Summary

> 🛥️ Power your ride with Sierra – synthetic strength that never quits!

## Quick Answers

- **What is this?** Sierra, SAE 30 Full Synthetic Oil (5 Quart), 18-9410-4 by sierra
- **How much does it cost?** ¥32730 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/9466298-sierra-sae-30-full-synthetic-oil-5-quart-18-9410)

## Best For

- sierra enthusiasts

## Why This Product

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

## Key Features

- • **All-Season Protection:** Keeps engines safe during startups, operation, and storage
- • **Fuel Efficiency Booster:** Reduces oil consumption and maximizes mileage
- • **Long-Lasting Lubrication:** Outperforms mineral oils for extended engine life
- • **Trusted Industry Standards:** Meets API-CF/SL certifications for reliability
- • **Engineered for Peak Performance:** Optimized for gasoline & diesel inboard and sterndrive engines

## Overview

Sierra SAE 30 Full Synthetic Oil (5 Quart) delivers advanced lubrication designed for both gasoline and diesel inboard and sterndrive engines. Its full synthetic formula ensures longer-lasting protection, reduces oil consumption, and improves fuel economy while meeting API-CF/SL standards. Ideal for maintaining peak engine performance during startups, operation, and storage.

## Description

SIZE - 5 quart; WEIGHT - SAE 30

## Features

- Recommended for gasoline and diesel inboard and sterndrive engines
- Longer lubrication effectiveness than mineral oils
- API-CF/SL
- Reduces oil consumption and improves fuel economy
- Superior engine protection during startups, operation and storage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Viscosity | SAE 30 |
| Brand | Sierra |
| Vehicle Service Type | Boat |
| UPC | 808282201838 |
| Automotive Fit Type | Universal Fit |
| Manufacturer | Sierra |
| Size | 5 L / 1.32 G |
| SAE J300 Viscosity Grade | 30 |
| Model | Fully Synthetic Oil SAE 30 |
| Item Weight | 1 pounds |
| Product Dimensions | 14.4 x 12.7 x 10.3 inches |
| Item model number | 18-9410-4 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 1894104 |
| OEM Part Number | 3842344 |

## Product Details

- **Viscosity:** SAE 30
- **Brand:** Sierra
- **Liquid Volume:** 160 Fluid Ounces
- **Package Information:** Bottle
- **Vehicle Service Type:** Boat

## Images

![Sierra, SAE 30 Full Synthetic Oil (5 Quart), 18-9410-4 - Image 1](https://m.media-amazon.com/images/I/6179GIcfKnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Good product.
  

*by F***R on Reviewed in the United States on September 7, 2018*

Cheapest synthetic option for my boat. Good product.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Company stands behind their product... and listing verbage!
  

*by G***. on Reviewed in the United States on November 22, 2022*

I've used this oil for years in my Volvo Penta 5.0L.  But these 5-stars are mostly for the supplier, Neobits. The listing says you're buying a 4-pack, but only 1 container arrived. After calling Amazon CS, Neobits got right back to me, explained that it was a listing error and refunded my full purchase price, no questions asked, while I got to keep the 1 container I got. Thanks, Neobits!

### ⭐ 1.0 out of 5 stars







  
  
    Price per oz. is not 9 cents
  

*by J***K on Reviewed in the United States on May 4, 2023*

If you don't mind paying $.34/oz, and NOT the $.09/oz shown on the listing, then I expect you will probably be satisfied with this product. The trouble is that when the listing indicates you get a "4 pack" of "5-quart container", I expected to get that

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**Shop now:** [https://www.desertcart.jp/products/9466298-sierra-sae-30-full-synthetic-oil-5-quart-18-9410](https://www.desertcart.jp/products/9466298-sierra-sae-30-full-synthetic-oil-5-quart-18-9410)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-03*