---
product_id: 578104943
title: "ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons)"
brand: "ultra 1plus"
price: "57251 som"
currency: KGS
in_stock: true
reviews_count: 8
url: https://www.desertcart.kg/products/578104943-ultra-1plus-sae-15w-40-full-synthetic-heavy-duty-diesel
store_origin: KG
region: Kyrgyzstan
---

# High 428°F flash point Stable viscosity under stress Superior engine wear protection ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons)

**Brand:** ultra 1plus
**Price:** 57251 som
**Availability:** ✅ In Stock

## Summary

> 🛢️ Drive smarter, last longer — the ULTRA 1PLUS edge for diesel dominance!

## Quick Answers

- **What is this?** ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) by ultra 1plus
- **How much does it cost?** 57251 som with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kg](https://www.desertcart.kg/products/578104943-ultra-1plus-sae-15w-40-full-synthetic-heavy-duty-diesel)

## 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

- • **Engine Armor:** Full synthetic formula slashes wear, extending engine life for the long haul.
- • **Clean Machine:** Fights soot and sludge buildup, ensuring a pristine engine environment.
- • **Universal Power:** Exceeds top API CK-4 and SN standards, ready for virtually any diesel engine.
- • **Viscosity Vigor:** Strong shear stability keeps oil thick and performance sharp under pressure.
- • **Fuel-Smart Formula:** Reduces oil consumption to boost your fuel economy on every drive.

## Overview

ULTRA 1PLUS SAE 15W-40 is a full synthetic heavy-duty diesel engine oil designed to protect and enhance engine performance. With superior wear reduction, strong shear stability, and a high flash point of 428°F, it combats deposits and oxidation while improving fuel efficiency. Compatible with a broad range of diesel engines, it meets and exceeds API CK-4 and SN standards, making it the go-to choice for professional-grade engine care.

## Description

Full description not available

## Features

- SUPERIOR ENGINE PROTECTION: U1P SAE 15W-40 Full synthetic formula reduces wear and extends engine life.
- ENHANCED PERFORMANCE: Strong shear stability maintains oil viscosity for optimal performance under demanding conditions.
- COMBATS DEPOSITS & OXIDATION: Fights soot, sludge, and oil breakdown for cleaner engines and longer oil life.
- FUEL EFFICIENCY: Minimizes oil consumption for improved fuel economy in various driving conditions.
- BROAD COMPATIBILITY: Exceeds API CK-4, API CJ-4, CI-4/CI-4+, CI-4, and CH-4 standards, suitable for a wide range of diesel engines.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Viscosity | 15W40 SAE Grade |
| Brand | ULTRA 1PLUS |
| Vehicle Service Type | Truck |
| Flash Point | 428 Degrees Fahrenheit |
| UPC | 810050658997 |
| Automotive Fit Type | Universal Fit |
| Manufacturer | Ultrachem LLC |
| Size | 2 Gallon (8 QT) |
| Model | SAE 15W-40 Full Synthetic Heavy-Duty Motor Oil, API CK-4/SN |
| Item Weight | 14.92 pounds |
| Product Dimensions | 4 x 8.25 x 11 inches |
| Item model number | UFS1540CK4-2G |
| Manufacturer Part Number | UFS1540CK4SN-2G |

## Product Details

- **Viscosity:** 15W40 SAE Grade
- **Brand:** ULTRA 1PLUS
- **Liquid Volume:** 2 Gallons
- **Package Information:** US Gallon
- **Vehicle Service Type:** Truck

## Images

![ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) - Image 1](https://m.media-amazon.com/images/I/816DBXVT7WL.jpg)
![ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) - Image 2](https://m.media-amazon.com/images/I/81HWujrYsnL.jpg)
![ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) - Image 3](https://m.media-amazon.com/images/I/81Us0qA-z9L.jpg)
![ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) - Image 4](https://m.media-amazon.com/images/I/71FY2+FJzmL.jpg)
![ULTRA 1PLUS SAE 15W-40 Full Synthetic Heavy-Duty Diesel Engine Oil - 15W 40 Motor Oil API CK-4/SN (2 Gallons) - Image 5](https://m.media-amazon.com/images/I/71NPTeipZVL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Runs cool, well kinda, in Kubota BX2230
*by J***S on June 13, 2024*

After 20 years I decided to convert my Kubota BX2230 to synthetic oil since everything I've read indicates synthetic is superior in every way. I wish I could say that the tractor now purrs like a kitten at idol but that would not be honest. it still rattles and shakes like a 1960's rock and roll gogo girl. But, that's okay. As long as it keeps running I will be happy.

### ⭐⭐⭐⭐⭐ Oil works great
*by J***N on October 12, 2024*

This oil works great, used it in China mopeds that called for that oil weight.

### ⭐⭐⭐⭐⭐ Great price, beats all retailers
*by W***T on April 21, 2024*

Great price on great synthetic.

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**Shop now:** [https://www.desertcart.kg/products/578104943-ultra-1plus-sae-15w-40-full-synthetic-heavy-duty-diesel](https://www.desertcart.kg/products/578104943-ultra-1plus-sae-15w-40-full-synthetic-heavy-duty-diesel)

---

*Product available on Desertcart Kyrgyzstan*
*Store origin: KG*
*Last updated: 2026-01-24*